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Novel single nucleotide polymorphisms of insulin-like growth factor-binding protein 7 (IGFBP7) gene significantly associated with growth traits in striped catfish (Pangasianodon hypophthalmus Sauvage, 1878).
Tran, Trang Thi Huyen; Tran, Hoang Son; Le, Binh Thi Nguyen; Van Nguyen, Sang; Vu, Hai-Anh; Kim, Oanh Thi Phuong.
  • Tran TTH; Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Str, Cau Giay, Hanoi, Vietnam.
  • Tran HS; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Str, Cau Giay, Hanoi, Vietnam.
  • Le BTN; Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Str, Cau Giay, Hanoi, Vietnam.
  • Van Nguyen S; Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Str, Cau Giay, Hanoi, Vietnam.
  • Vu HA; Research Institute of Aquaculture, No.2, 116 Nguyen Dinh Chieu Str, District 1, Ho Chi Minh City, Vietnam.
  • Kim OTP; Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Str, Cau Giay, Hanoi, Vietnam.
Mol Genet Genomics ; 298(4): 883-893, 2023 Jul.
Article en En | MEDLINE | ID: mdl-37097322
ABSTRACT
Breeding program to improve economically important growth traits in striped catfish (Pangasianodon hypophthalmus) requires effective molecular markers. This study was conducted to identify single nucleotide polymorphisms (SNPs) of Insulin-like Growth Factor-Binding Protein 7 (IGFBP7) gene which plays multiple roles in regulating growth, energy metabolism and development. The association between SNPs in IGFBP7 gene and growth traits in striped catfish was analyzed in order to uncover the SNPs that have potential to be valuable markers for improving growth traits. Firstly, fragments of IGFBP7 gene from ten fast-growing fish and ten slow-growing fish were sequenced in order to discover SNPs. After filtering the detected SNPs, an intronic SNP (2060A > G) and two non-synonymous SNPs (344 T > C and 4559C > A) causing Leu78Pro and Leu189Met in protein, respectively, were subjected to further validated by individual genotyping in 70 fast-growing fish and 70 slow-growing fish using single base extension method. Our results showed that two SNPs (2060A > G and 4559 C > A (p. Leu189Met)) were significantly associated with the growth in P. hypophthalmus (p < 0.001), thus being candidate SNP markers for the growth traits of this fish. Moreover, linkage disequilibrium and association analysis with growth traits of haplotypes generated from the 3 filtered SNPs (344 T > C, 2060 A > G and 4559 C > A) were examined. These revealed that the non-coding SNP locus (2060A > G) had higher genetic diversity at which the G allele was predominant over the A allele in the fast-growing fish. Furthermore, the results of qPCR showed that expression of IGFBP7 gene with genotype GG (at locus 2060) in fast-growing group was significantly higher than that with genotype AA in slow-growing group (p < 0.05). Our study provides insights into the genetic variants of IGFBP7 gene and useful data source for development molecular marker for growth traits in breeding of the striped catfish.
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Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Bagres / Somatomedinas Tipo de estudio: Prognostic_studies / Risk_factors_studies Límite: Animals Idioma: En Año: 2023 Tipo del documento: Article

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Bagres / Somatomedinas Tipo de estudio: Prognostic_studies / Risk_factors_studies Límite: Animals Idioma: En Año: 2023 Tipo del documento: Article