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1.
Int Urol Nephrol ; 56(8): 2495-2502, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38448785

RESUMEN

PURPOSE: To evaluate the benefit of targeted antibiotic prophylaxis (TAP) based on rectal swab culture in comparison with standard empiric antimicrobial prophylaxis in patients undergoing transrectal ultrasound-guided needle biopsy of the prostate (TRUS-BP), as well as to assess rate of fecal carriage of Fluoroquinolone-resistant Enterobacterales FQRE. PATIENTS AND METHODS: We prospectively analyzed data that randomized 157 patients within two groups: (G1) TAP according to rectal swab performed 10 days before PB; (G2): empirical antibiotic prophylaxis with ciprofloxacin. Prevalence of FQRE digestive carriage and risk factors were investigated. Incidence of infectious complications after (TRUS-BP) in each group was compared. RESULTS: G2 included 80 patients versus 77 in G1. There was no difference between the two groups regarding age, diabetes, prostate volume, PSA, number of biopsy cores, and risk factors for FQRE. In G2, the prevalence of FQRE digestive carriage was 56.3% all related to E. coli species. In the case of digestive carriage of FQRE, TAP according to the rectal swab culture with third-generation cephalosporins was performed in 73.3%. Patients with FQRE had history of FQ use within the last 6 months in 17.8% (p = 0.03). Rate of febrile urinary tract infection after PB was 13% in G1 and 3.8% in G2 (p = 0.02). CONCLUSIONS: Incidence of FQ resistance in the intestinal flora of our local population was prevalent. Risk factor for resistance was the use of FQ within the last 6 months. TAP adapted to rectal swab, mainly with third-generation cephalosporins, significantly reduced the rate of infectious complications after (TRUS-BP).


Asunto(s)
Profilaxis Antibiótica , Próstata , Recto , Humanos , Masculino , Estudios Prospectivos , Recto/microbiología , Próstata/patología , Anciano , Persona de Mediana Edad , Antibacterianos/uso terapéutico , Ciprofloxacina/uso terapéutico , Ciprofloxacina/administración & dosificación , Infecciones Urinarias/prevención & control , Infecciones Urinarias/microbiología , Infecciones Urinarias/epidemiología , Biopsia Guiada por Imagen/efectos adversos , Biopsia Guiada por Imagen/métodos
2.
Urol Case Rep ; 51: 102555, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37719031

RESUMEN

Keratinizing squamous metaplasia of the renal pelvis is a rare lesion of the upper urinary tract that can occur in the context of chronic aggression to the urothelium, potentially leading to a secondary pyeloureteral junction syndrome. We report the case of a 43-year-old patient discovered intraoperatively in relation to a renal pelvis stone causing a pyeloureteral junction syndrome. The extemporaneous histological examination ruled out a malignant process, and we performed a pyeloplasty according to KUSS-ANDERSON technique. This pathology should be recognized by the urologist for appropriate management. Treatment is conservative, with extended follow-up to detect recurrences or carcinomatous degenerations.

3.
Urol Case Rep ; 50: 102535, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37621391

RESUMEN

With about 110 cases reported in literature, juxtaglomerular cell tumors are rare. We report a 25 years old patient who was admitted in neurology for a hemorrhagic stroke secondary to a cerebral aneurysm rupture due to high blood pressure. Etiological investigations showed a solid mass of the left kidney. A radical nephrectomy was realized and pathological examination and immunohistochemical profile concluded to juxtaglomerular cell tumor. The originality of this observation is based on the mode of presentation of a rare renal tumor by a malignant high blood pressure.

4.
Urol Case Rep ; 48: 102392, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-37035722

RESUMEN

Prostate cancer (PCa) in the second most common cancer in men worldwide. It commonly metastasizes to the bone, lymph nodes, liver and lungs. Synchronous or metachronous testicular metastasis is a rare finding, generally diagnosed incidentally after bilateral orchidectomy for hormonal management in patients with advanced PCa, or at autopsy. We report a case of a 55-year-old male, presenting a PCa and who developed a single testicular metastasis treated by radical orchidectomy, while he was under hormonotherapy.

5.
Urol Case Rep ; 47: 102380, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36941869

RESUMEN

Paratesticular leiomyoma is an extremely rare benign tumour. It is often asymptomatic. It is sometimes difficult to distinguish leiomyomas from malignant testicular tumours, which leads to radical orchidectomy, despite its benign nature. Magnetic resonance imaging can be helpful to make conservative management of this lesion.

6.
Urol Case Rep ; 43: 102114, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35600810

RESUMEN

Upper tract urothelial carcinoma presents 5% of urothelial cancers. The most frequent revealing symptom gross haematuria. Vaginal metastasis is rare revealing condition. The combination on these two symptoms should recall the diagnosis of this neoplasm. Biopsy of the vaginal mass can make the histologic diagnosis easily.

7.
Prog Urol ; 32(6): 472-479, 2022 May.
Artículo en Francés | MEDLINE | ID: mdl-35260340

RESUMEN

INTRODUCTION: Clean Intermittent Catheterization (CIC) is the method of choice for bladder emptying in patients having bladder emptying disorders, acquired or pharmacologically induced, whether it is neurologically related or not. The aim of this study is to assess the theoretical and practical knowledge of general practitioners (GP) on CIC. MATERIALS: Observational prospective study (anonymous online questionnaire) was conducted with 224 GP between March and April 2020. Each physician had to complete a questionnaire about the definition of CIC, its indications and usage, the indications of urine culture, antibiotic therapy, and the complications of this method of drainage. RESULTS: Only 18.3% of GP that took part in the study gave an exact definition of CIC. As to the importance of it, 67.9% responded that it protects the upper urinary tract and 37.1% that it prevents urinary tract infections (UTI). Fifty-two per cent of physicians were unaware of the regular frequency at which it should carry out a day. Fifty eight percent prescribed sterile gloves and 57.1% an antiseptic. UTI was considered as the main complication of CIC by 87.1% of physicians and 35.7% requested a systematic urine culture for patients under CIC. For patients with an asymptomatic bacteriuria, 65.6% of GP prescribed antibiotic therapy. CONCLUSION: GP need to improve their knowledge of SIP, its framework, indications, modalities, and the way to deal with colonization or urinary tract infection. This will improve the management of impacted patients.


Asunto(s)
Médicos Generales , Cateterismo Uretral Intermitente , Enfermedades de la Vejiga Urinaria , Vejiga Urinaria Neurogénica , Infecciones Urinarias , Antibacterianos/uso terapéutico , Encuestas de Atención de la Salud , Humanos , Cateterismo Uretral Intermitente/efectos adversos , Cateterismo Uretral Intermitente/métodos , Internet , Estudios Prospectivos , Enfermedades de la Vejiga Urinaria/terapia , Vejiga Urinaria Neurogénica/complicaciones , Vejiga Urinaria Neurogénica/terapia , Cateterismo Urinario/efectos adversos , Cateterismo Urinario/métodos , Infecciones Urinarias/etiología , Infecciones Urinarias/prevención & control
8.
Encephale ; 48(6): 638-646, 2022 Dec.
Artículo en Francés | MEDLINE | ID: mdl-34801230

RESUMEN

OBJECTIVES: The aims of this study were to estimate the incidence of the post-partum post-traumatic stress disorder (PP-PTSD) in primiparous women, and to determine the profile of women at risk of developing this disorder. METHODS: We conducted a descriptive, prospective and longitudinal study carried out at the maternity department of the Hedi Chaker Hospital, Sfax-Tunisia over a period of 15 months. At the first stage of the study, the Saint-Antoine pain questionnaire, the peri-traumatic dissociative experiences questionnaire and the peri-traumatic distress inventory were used respectively to assess the pain of delivery, the peri-traumatic dissociation and distress. At the second stage of the study, the questionnaires, perinatal post-traumatic stress disorder (PPQ), hospital anxiety and depression scale and the Edinburgh postnatal depression scale were used respectively for the PP-PTSD screening and the assessment of the post-partum anxious and depressive symptomatology. RESULTS: The study population consisted of 183 parturients at the first stage of the study and 150 parturients at the second stage of the study. The incidence of the PP-PTSD was 9.3 %. In the multivariate study, some factors studied were significantly associated with the development of PTSD-PP, including a history of therapeutic termination of pregnancy, a history of miscarriage, exposure to a stressful event during pregnancy, prenatal hospitalization of the mother, instrumental delivery, pain intensity especially in the affective component, peri-traumatic dissociation and avoidance of sexual intercourse for fear of a new pregnancy. However the skin to skin contact with the new-born immediately after delivery was a significant protective factor. CONCLUSION: The psychological consequences associated with the first birth, particularly the PP-PTSD, are common. The Identification of women at risk and a systematic screening of postpartum post-traumatic stress symptoms are desirable.


Asunto(s)
Trastornos por Estrés Postraumático , Femenino , Embarazo , Humanos , Trastornos por Estrés Postraumático/epidemiología , Trastornos por Estrés Postraumático/etiología , Trastornos por Estrés Postraumático/diagnóstico , Estudios Longitudinales , Estudios Prospectivos , Factores de Riesgo , Encuestas y Cuestionarios , Dolor
9.
Prog Urol ; 31(17): 1175-1181, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34656449

RESUMEN

INTRODUCTION: Vesico-vaginal fistula (VVF) is a global healthcare problem that has a high prevalence in developing countries. The aim of this work is to study the epidemiological, clinical and therapeutic characteristics of VVF post-obstetric and gynecologic procedures in order to identify the predictive factors of surgical treatment failure. METHODS: Data were collected from 132 VVF patients in our institution between 1985 and 2017. VVF was classified according to Zmerli's classification. Patients underwent surgical treatment and were evaluated after a follow-up period of 6 months. Successful treatment was defined as the absence of urine leakage whereas recurrence was defined as the presence of urine leakage immediately after the surgery or after a period of dryness with a confirmed VVF. Risk factors of surgical treatment failure were identified. RESULTS: The average age of patients was 44 years. The patients were multiparous in 62% of cases. VVF was consecutive to hysterectomy in 62.1% of cases, and after childbirth in 34%. VVF was retro-trigonal in 99 cases (75%) and trigonal in 33 cases (25%). The average size of the fistula was 1cm (0.3-2cm). VVF repair was performed by vaginal approach in 68% of cases and abdominal approach in 32% of cases. Treatment failure was noted in 36 patients (27%). Predictive factors of treatment failure were: vaginal fibrosis (P<0.001); trigonal location of the fistula (P<0.001); large diameter of the VVF>1cm (P<0.001); and complex and complicated fistulas (P=0.02). CONCLUSION: Although Tunisia is a developing country, the main cause of VVF was not obstetrical. Treatment failure, noted in almost one third of cases, was, in our series, correlated with the quality of the vaginal tissue, the size and the location of the fistula, and its complexity. LEVEL OF PROOF: 4.


Asunto(s)
Fístula Vesicovaginal , Adulto , Femenino , Humanos , Histerectomía , Embarazo , Factores de Riesgo , Insuficiencia del Tratamiento , Túnez/epidemiología , Fístula Vesicovaginal/epidemiología , Fístula Vesicovaginal/etiología , Fístula Vesicovaginal/cirugía
10.
Ann Pharm Fr ; 79(4): 465-472, 2021 Jul.
Artículo en Francés | MEDLINE | ID: mdl-33516719

RESUMEN

INTRODUCTION: Metabolic abnormalities are frequently reported in HIV infection. They were mainly related to the chronic infection and the use of antiretroviral therapy. OBJECTIVE: Describe the epidemiological, clinical, laboratory and treatment features of people living with HIV (PLHIV) on antiretroviral therapy and determine the prevalence of metabolic syndrome and its associated factors. MATERIALS AND METHODS: We conducted a cross-sectional, descriptive and analytical study in the service of Infectious Diseases of the University Hospital of Monastir. We included all PLHIV on antiretroviral therapy for at least 3 months. Biological explorations based on metabolic parameters were performed systematically for all patients after informed consent. Metabolic syndrome was assessed according to the definitions of the International Diabetes Federation (IDF) in 2005. We divided the patients into two groups: Group A: PLHIV with metabolic syndrome (n=19) and Group B: PLHIV without metabolic syndrome (n=51). RESULTS: We included in this study 70 PLVIH. The metabolic syndrome was noted in 19 cases (27.1%). The average age was 43.7 years in group A and 36.7 years in group B. Gender distribution were uniform in the two groups (P=0.4). HIV infection has been evolving for 9.7 and 5.8 years respectively in group A and B, P=0.017. Body mass index (BMI) was significantly higher in group A (26.4 vs 23.5kg/m2, P=0.008). Two patients in group A (10.5%) and 14 patients in group B (27.4%) had a low CD4 count (<200/mm3). Protease inhibitor regimens were prescribed in five cases (26.3%) in group A and 26 cases (50.9%) in group B. In multivariate models, Age over 40 (OR=9.9, 95% CI 2.4-40.6, P=0.001) and BMI ≥25 Kg/m2 (OR=8.47, 95% CI 1.94-36.8, p=0.004) were both independently associated with the presence of the metabolic syndrome. CONCLUSION: Metabolic syndrome is common among PLHIV on antiretroviral therapy. The identification of factors associated is a main parameter for early detection of metabolic risk and personalized management.


Asunto(s)
Infecciones por VIH , Síndrome Metabólico , Adulto , Estudios Transversales , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Humanos , Síndrome Metabólico/epidemiología , Prevalencia , Factores de Riesgo , Túnez/epidemiología
11.
Ann Pharm Fr ; 79(3): 244-254, 2021 May.
Artículo en Francés | MEDLINE | ID: mdl-33289663

RESUMEN

INTRODUCTION: Tigecycline is a relatively new antibiotic that have very limited valid indications. When no other alternative is available, this drug is widely used off label with promising results. The objective of this study is to summarize the different off label uses of tigecycline so that we can decide when and how to prescribe it in the absence of guidelines. MATERIAL AND METHODS: This study a revue of the literature collecting all the articles concerning the off label uses of tigecycline. RESULTS: Tigecycline was widely prescribed, off label, to treat infections with controversial results. Randomised clinical trials were conducted to evaluate its use to treat pneumonia. The results for this indication have a respectable level of evidence. For the other indications, the data collected was insufficient to support tigecycline prescription. In fact, different protocols were used which makes it hard to evaluate the efficacy and to conclude to the best treatment regimen. A tendency to prescribe high doses of the molecule was noted in different studies. When prescribed off label, tigecycline prescriptions were associated with a higher mortality and incidence of side effects. CONCLUSION: The tigecycline remains a valid option for the treatment of infections dues to multi-resistant bacteria especially when other alternatives are scarce or in cases of renal failure.


Asunto(s)
Antibacterianos , Uso Fuera de lo Indicado , Antibacterianos/uso terapéutico , Tigeciclina , Resultado del Tratamiento
12.
Morphologie ; 105(350): 210-216, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-33071051

RESUMEN

AIM OF THE STUDY: The main difficulties during retroperitoneal laparoscopic adrenalectomies are due to its location. Our objective was to define the relationship of the adrenals with the diaphragm and the psoas muscle. METHODS: Our work is an anatomical dissection of 80 fresh cadavers' adrenals. To study the right adrenal, we performed a right nephrectomy and adrenal remained attached to the Inferior vena cava by its main vein. On the left, the edges of the adrenal have been identified by needles and the adrenal was reclined to study its projection on the posterior muscular wall. RESULTS: The right adrenal is located higher, 13mm [4-20mm] above the medial arcuate ligament (MAL) in 16 cases (40%). Its lower border was at the same level as the MAL in 18 cases (45%) and 11mm [10-17mm] below the MAL in 6 cases (15%). The posterior support of the right adrenal was the right crus of the diaphragm (Right-CD) in 34 cases (85%) and straddling the Right-CD and the psoas in 6 cases (15%). The study of the relationships of the left adrenal with the MAL showed that the lower edge of the gland was at its same level in 16 cases (40%) and below in 24 cases (60%) by 14mm [8-24mm]. The posterior support of the left adrenal was the left crus of the diaphragm (Left-CD) in 16 cases (40%) and straddling the Left-CD and the psoas in 24 cases (60%). CONCLUSIONS: Our results showed that the right adrenal is higher. The MAL is an important posterior element to the adrenal gland that could serve as an anatomical landmark to identify the adrenal during laparoscopic adrenalectomy.


Asunto(s)
Pared Abdominal , Laparoscopía , Glándulas Suprarrenales , Cadáver , Humanos , Músculos
13.
IDCases ; 15: e00528, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30976518

RESUMEN

Mediterranean spotted fever is a generally benign disease but with the potential of serious manifestations. We report a case of Mediterranean spotted fever in a 56-year-old woman, with pet dog exposure, who presented with a septic shock pattern. Based on clinical symptoms, history, and laboratory results, the diagnosis of Mediterranean spotted fever was suspected and the outcome was favorable with doxycycline treatment. Although rickettsiae remain an uncommon cause of the sepsis syndrome, it is important to consider it, especially as people are now traveling to endemic areas more frequently.

14.
Prog Urol ; 28(10): 488-494, 2018 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-29983333

RESUMEN

INTRODUCTION: Paragangliomas, defined as extra-adrenal chromaffin-cells tumors, are rarely located in the retro-peritoneum. Clinical presentation is similar to pheochromocytoma, and mainly depends on the producing character of the tumor. Positive diagnosis requires plasmatic and urinary hormonal assays. Radiological and isotopic explorations are essential before surgery. The only curative therapeutic strategy is surgical, associated to peri-operative prevention and monitoring of the frequently reported hemodynamic and cardiovascular disorders. Outcome depends of the metastatic character of the tumor, the presence of tumor remnant after surgical resection. Genetic study is recommended; the risk of recurrence and association to other neoplasm is more described in genetic forms. MATERIAL AND METHODS: Authors report 5cases of retro-peritoneal paraganglioma, operated in the department of urology of Hospital, between 2013 and 2017. Observations are about 2men and 3women. Clinical presentation is not always specific and paraganglioma may be discovered fortuitously. Two patients have been operated by coelioscopic approach, midline incision was performed in two other cases, and dorsal lumbotomy associated to a Rutherford-Morrison incision in a patient. RESULTS: Two patients presented resistant hypertension and palpitation associated to suspect retro-peritoneal masses in imagery and elevated urinary methoxylated derivates before surgery. One patient was asymptomatic and the tumor was discovered in imagery. Per-operative hypertensive crisis and sinus tachycardia occurred in a case. The average follow-up period is 22.8months. Hypertension and palpitation disappeared after surgery. There was no recurrence for all the operated patients. CONCLUSION: Retro-peritoneal paraganglioma is a rare condition. Symptoms are not specific and clinical presentation may be similar to pheochromocytoma. Abdominal CT-scan and MRI, in association with MIBG scintigraphy are strongly evocative. Histological examination ensures diagnosis. Per-operative cardio-vascular disorders are to consider and must prevented and managed by anesthesiologists. Complete surgical resection is the only curative treatment and avoids recurrences.


Asunto(s)
Paraganglioma/diagnóstico , Feocromocitoma/diagnóstico , Neoplasias Retroperitoneales/diagnóstico , Adulto , Femenino , Estudios de Seguimiento , Humanos , Imagen por Resonancia Magnética/métodos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Paraganglioma/patología , Paraganglioma/cirugía , Feocromocitoma/patología , Neoplasias Retroperitoneales/patología , Neoplasias Retroperitoneales/cirugía , Tomografía Computarizada por Rayos X/métodos
15.
J Med Case Rep ; 12(1): 172, 2018 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-29921313

RESUMEN

BACKGROUND: Splenogonadal fusion is a rare and benign condition. Diagnosis is challenging for clinicians. Despite its indolence, diagnosis is often confirmed after orchidectomy. Surgery is mandatory, particularly to rule out the extremely rare association with malignancy. CASE PRESENTATION: We report a case of splenogonadal fusion in a 38-year-old North African man presenting a palpable scrotal mass. We describe clinical aspects, pathogenic hypothesis, radiological features, as well as surgical management principles. CONCLUSIONS: Splenogonadal fusion is rarely suspected and diagnosed preoperatively. A diagnosis is made once an ectopic testicular mass is associated with cryptorchidism and suggestive radiological signs. A better knowledge of the clinical and radiological features of splenogonadal fusion provides an opportunity for conservative surgery.


Asunto(s)
Coristoma/diagnóstico , Bazo , Enfermedades Testiculares/diagnóstico , Testículo/cirugía , Adulto , Coristoma/congénito , Coristoma/cirugía , Edema/etiología , Humanos , Masculino , Orquiectomía , Escroto , Enfermedades Testiculares/congénito , Enfermedades Testiculares/cirugía
16.
Tunis Med ; 96(10-11): 599-605, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30746652

RESUMEN

Over the last two decades, many progress has transformed the profile of HIV infection and improved the survival and quality of life of people living with HIV (PLHIV). In addition to individual benefits, antiretrovirals allow through viral suppression to prevent HIV transmission. The dual benefit, curative and preventive, of antiretrovirals has propel HIV testing at the forefront of the global Fast Track strategy as principle access to care and prevention. In the Maghreb countries, these achievements are impeded by a number of barriers that limit access for PLHIV, especially key populations and vulnerable populations, to appropriate care and prevention services. In order to achieve the global goals of Fast Track strategy, policy makers need to implement high-impact interventions to facilitate access to HIV testing, improve referral to care, strengthen adherence and retention to care. This can be achieved through mobile and community-based testing to target key populations, and innovative approaches such as partner notification and HIV self-testing. The establishment of robust links to care centers ensures rapid initiation of antiretrovirals in order to achieve viral suppression. Morever, these goals can be achieved by removing barriers to access to HIV testing and care. This is include specific interventions based on the respect of human rights, the fight against stigma and discrimination, the review of legislation limiting the legal age for access to voluntary testing and the removal of punitive laws against key populations.


Asunto(s)
Infecciones por VIH/epidemiología , Infecciones por VIH/terapia , África del Norte/epidemiología , Antirretrovirales/uso terapéutico , Epidemias , Salud Global/estadística & datos numéricos , VIH , Infecciones por VIH/diagnóstico , Humanos , Control de Infecciones/métodos , Control de Infecciones/tendencias , Tamizaje Masivo , Prevalencia
18.
New Microbes New Infect ; 9: 1-7, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26740887

RESUMEN

Rift Valley fever virus (RVFv) is capable of causing dramatic outbreaks amongst economically important animal species and is capable of causing severe symptoms and mortality in humans. RVFv is known to circulate widely throughout East Africa; serologic evidence of exposure has also been found in some northern African countries, including Mauritania. This study aimed to ascertain whether RVFv is circulating in regions beyond its known geographic range. Samples from febrile patients (n = 181) and nonfebrile healthy agricultural and slaughterhouse workers (n = 38) were collected during the summer of 2014 and surveyed for exposure to RVFv by both serologic tests and PCR. Of the 219 samples tested, 7.8% of nonfebrile participants showed immunoglobulin G reactivity to RVFv nucleoprotein and 8.3% of febrile patients showed immunoglobulin M reactivity, with the latter samples indicating recent exposure to the virus. Our results suggest an active circulation of RVFv and evidence of human exposure in the population of Tunisia.

20.
Genet Mol Res ; 14(2): 3071-81, 2015 Apr 10.
Artículo en Inglés | MEDLINE | ID: mdl-25966071

RESUMEN

Tunisian tall fescue (Festuca arundinacea Schreb.) is an important grass for forages or soil conservation, particularly in marginal sites. Inter-simple sequence repeats were used to estimate genetic diversity within and among 8 natural populations and 1 cultivar from Northern Tunisia. A total of 181 polymorphic inter-simple sequence repeat markers were generated using 7 primers. Shannon's index and analysis of molecular variance evidenced a high molecular polymorphism at intra-specific levels for wild and cultivated accessions, showing that Tunisian tall fescue germplasm constitutes an important pool of diversity. Within-population variation accounted for 39.42% of the total variation, but no regional differentiation was discernible to designate close relationships between regions. Most of the variation (GST = 67%) occurred between populations, rather than within populations. The ɸST (0.60) revealed high population structuring. Additionally, the population structure was independent of the geographic origin and was not affected by environmental factors. The unweighted pair group method with arithmetic mean tree based on genetic similarity and principal coordinate analysis based on coefficient similarity illustrated that continental populations from the proximate localities of Beja and Jendouba were genetically closely related, while the wild Skalba population from the littoral Tunisian locality was the most diverse from the others. Moreover, great molecular similarity of the spontaneous population Sedjnane originated from the mountain areas was revealed with the local cultivar Mornag. The observed genetic diversity can be used to implement conservation strategies and breeding programs for improving forage crops in Tunisia.


Asunto(s)
ADN de Plantas/genética , Festuca/genética , Repeticiones de Microsatélite , Variación Genética , Genética de Población , Análisis de Secuencia de ADN , Túnez
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