A multi-parent advanced generation inter-cross (MAGIC) population for genetic analysis and improvement of cowpea (Vigna unguiculata L. Walp.)
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...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Wiley
2018
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/92546 |
| _version_ | 1855519493749473280 |
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| author | Huynh, B.L. Ehlers, J.D. Huang, B.E. Muñoz Amatriarin, M. Lonardi, S. Santos, J.R.P. Ndeve, A. Batieno, Benoit Joseph Boukar, O. Cisse, N. Drabo, I. Fatokun, C.A. Kusi, F. Agyare, R.Y. Guo, Y.N. Herniter, I. Lo, S. Wanamaker, S.I. Xu, S. Close, T.J. Roberts, P.A. |
| author_browse | Agyare, R.Y. Batieno, Benoit Joseph Boukar, O. Cisse, N. Close, T.J. Drabo, I. Ehlers, J.D. Fatokun, C.A. Guo, Y.N. Herniter, I. Huang, B.E. Huynh, B.L. Kusi, F. Lo, S. Lonardi, S. Muñoz Amatriarin, M. Ndeve, A. Roberts, P.A. Santos, J.R.P. Wanamaker, S.I. Xu, S. |
| author_facet | Huynh, B.L. Ehlers, J.D. Huang, B.E. Muñoz Amatriarin, M. Lonardi, S. Santos, J.R.P. Ndeve, A. Batieno, Benoit Joseph Boukar, O. Cisse, N. Drabo, I. Fatokun, C.A. Kusi, F. Agyare, R.Y. Guo, Y.N. Herniter, I. Lo, S. Wanamaker, S.I. Xu, S. Close, T.J. Roberts, P.A. |
| author_sort | Huynh, B.L. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | 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. |
| format | Journal Article |
| id | CGSpace92546 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace925462025-11-11T10:09:00Z A multi-parent advanced generation inter-cross (MAGIC) population for genetic analysis and improvement of cowpea (Vigna unguiculata L. Walp.) Huynh, B.L. Ehlers, J.D. Huang, B.E. Muñoz Amatriarin, M. Lonardi, S. Santos, J.R.P. Ndeve, A. Batieno, Benoit Joseph Boukar, O. Cisse, N. Drabo, I. Fatokun, C.A. Kusi, F. Agyare, R.Y. Guo, Y.N. Herniter, I. Lo, S. Wanamaker, S.I. Xu, S. Close, T.J. Roberts, P.A. legumes cowpeas vigna unguiculata magic qtl flowering photoperiod genetic resources cell biology genetics 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. 2018-03 2018-05-14T15:08:57Z 2018-05-14T15:08:57Z Journal Article https://hdl.handle.net/10568/92546 en Open Access application/pdf Wiley Huynh, B.L., Ehlers, J.D., Huang, B.E., Munoz‐Amatriain, M., Lonardi, S., Santos, J.R.P., ... & Roberts, P.A. (2018). A multi‐parent advanced generation inter‐cross (MAGIC) population for genetic analysis and improvement of cowpea (Vigna unguiculata L. Walp.). The Plant Journal, 93(6), 1129-1142. |
| spellingShingle | legumes cowpeas vigna unguiculata magic qtl flowering photoperiod genetic resources cell biology genetics Huynh, B.L. Ehlers, J.D. Huang, B.E. Muñoz Amatriarin, M. Lonardi, S. Santos, J.R.P. Ndeve, A. Batieno, Benoit Joseph Boukar, O. Cisse, N. Drabo, I. Fatokun, C.A. Kusi, F. Agyare, R.Y. Guo, Y.N. Herniter, I. Lo, S. Wanamaker, S.I. Xu, S. Close, T.J. Roberts, P.A. A multi-parent advanced generation inter-cross (MAGIC) population for genetic analysis and improvement of cowpea (Vigna unguiculata L. Walp.) |
| title | A multi-parent advanced generation inter-cross (MAGIC) population for genetic analysis and improvement of cowpea (Vigna unguiculata L. Walp.) |
| title_full | A multi-parent advanced generation inter-cross (MAGIC) population for genetic analysis and improvement of cowpea (Vigna unguiculata L. Walp.) |
| title_fullStr | A multi-parent advanced generation inter-cross (MAGIC) population for genetic analysis and improvement of cowpea (Vigna unguiculata L. Walp.) |
| title_full_unstemmed | A multi-parent advanced generation inter-cross (MAGIC) population for genetic analysis and improvement of cowpea (Vigna unguiculata L. Walp.) |
| title_short | A multi-parent advanced generation inter-cross (MAGIC) population for genetic analysis and improvement of cowpea (Vigna unguiculata L. Walp.) |
| title_sort | multi parent advanced generation inter cross magic population for genetic analysis and improvement of cowpea vigna unguiculata l walp |
| topic | legumes cowpeas vigna unguiculata magic qtl flowering photoperiod genetic resources cell biology genetics |
| url | https://hdl.handle.net/10568/92546 |
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