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A multi-parent advanced generation inter-cross (MAGIC) population for genetic analysis and improvement of cowpea (Vigna unguiculata L. Walp.).
Huynh, Bao-Lam; Ehlers, Jeffrey D; Huang, Bevan Emma; Muñoz-Amatriaín, María; Lonardi, Stefano; Santos, Jansen R P; Ndeve, Arsenio; Batieno, Benoit J; Boukar, Ousmane; Cisse, Ndiaga; Drabo, Issa; Fatokun, Christian; Kusi, Francis; Agyare, Richard Y; Guo, Yi-Ning; Herniter, Ira; Lo, Sassoum; Wanamaker, Steve I; Xu, Shizhong; Close, Timothy J; Roberts, Philip A.
Afiliación
  • Huynh BL; Department of Nematology, University of California, 900 University Avenue, Riverside, CA, 92521, USA.
  • Ehlers JD; Department of Botany and Plant Sciences, University of California, 900 University Avenue, Riverside, CA, 92521, USA.
  • Huang BE; Discovery Sciences, Janssen R&D, 329 Oyster Point Blvd, South San Francisco, CA, 94080, USA.
  • Muñoz-Amatriaín M; Department of Botany and Plant Sciences, University of California, 900 University Avenue, Riverside, CA, 92521, USA.
  • Lonardi S; Department of Computer Science and Engineering, University of California, 900 University Avenue, Riverside, CA, 92521, USA.
  • Santos JRP; Department of Nematology, University of California, 900 University Avenue, Riverside, CA, 92521, USA.
  • Ndeve A; Department of Nematology, University of California, 900 University Avenue, Riverside, CA, 92521, USA.
  • Batieno BJ; Institut de l'Environnement et de Recherches Agricoles, BP 476 Ouagadougou 01, Burkina Faso.
  • Boukar O; International Institute of Tropical Agriculture, PMB 5320, Oyo Road, Ibadan, Nigeria.
  • Cisse N; Institut Sénégalais de Recherches Agricoles, BP 3320, Thiès, Sénégal.
  • Drabo I; Institut de l'Environnement et de Recherches Agricoles, 01 BP 10 Koudougou 01, Burkina Faso.
  • Fatokun C; International Institute of Tropical Agriculture, Entrance Rd, Ibadan, Nigeria.
  • Kusi F; Savanna Agricultural Research Institute, P. O. Box TL 52, Tamale, Ghana.
  • Agyare RY; Savanna Agricultural Research Institute, P. O. Box TL 52, Tamale, Ghana.
  • Guo YN; Department of Botany and Plant Sciences, University of California, 900 University Avenue, Riverside, CA, 92521, USA.
  • Herniter I; Department of Botany and Plant Sciences, University of California, 900 University Avenue, Riverside, CA, 92521, USA.
  • Lo S; Department of Botany and Plant Sciences, University of California, 900 University Avenue, Riverside, CA, 92521, USA.
  • Wanamaker SI; Department of Botany and Plant Sciences, University of California, 900 University Avenue, Riverside, CA, 92521, USA.
  • Xu S; Department of Botany and Plant Sciences, University of California, 900 University Avenue, Riverside, CA, 92521, USA.
  • Close TJ; Department of Botany and Plant Sciences, University of California, 900 University Avenue, Riverside, CA, 92521, USA.
  • Roberts PA; Department of Nematology, University of California, 900 University Avenue, Riverside, CA, 92521, USA.
Plant J ; 93(6): 1129-1142, 2018 03.
Article en En | MEDLINE | ID: mdl-29356213
ABSTRACT
Multi-parent advanced generation inter-cross (MAGIC) populations are an emerging type of resource for dissecting the genetic structure of traits and improving breeding populations. We developed a MAGIC population for cowpea (Vigna unguiculata L. Walp.) from eight founder parents. These founders were genetically diverse and carried many abiotic and biotic stress resistance, seed quality and agronomic traits relevant to cowpea improvement in the United States and sub-Saharan Africa, where cowpea is vitally important in the human diet and local economies. The eight parents were inter-crossed using structured matings to ensure that the population would have balanced representation from each parent, followed by single-seed descent, resulting in 305 F8 recombinant inbred lines each carrying a mosaic of genome blocks contributed by all founders. This was confirmed by single nucleotide polymorphism genotyping with the Illumina Cowpea Consortium Array. These lines were on average 99.74% homozygous but also diverse in agronomic traits across environments. Quantitative trait loci (QTLs) were identified for several parental traits. Loci with major effects on photoperiod sensitivity and seed size were also verified by biparental genetic mapping. The recombination events were concentrated in telomeric regions. Due to its broad genetic base, this cowpea MAGIC population promises breakthroughs in genetic gain, QTL and gene discovery, enhancement of breeding populations and, for some lines, direct releases as new varieties.
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Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Genes de Plantas / Sitios de Carácter Cuantitativo / Fitomejoramiento / Vigna Tipo de estudio: Prognostic_studies Idioma: En Revista: Plant J Asunto de la revista: BIOLOGIA MOLECULAR / BOTANICA Año: 2018 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Genes de Plantas / Sitios de Carácter Cuantitativo / Fitomejoramiento / Vigna Tipo de estudio: Prognostic_studies Idioma: En Revista: Plant J Asunto de la revista: BIOLOGIA MOLECULAR / BOTANICA Año: 2018 Tipo del documento: Article País de afiliación: Estados Unidos