Largescale screen for artificial selection in maize identifies candidate agronomic loci for domestication and crop improvement
Maize (Zea mays subsp mays) was domesticated from teosinte (Z. mays subsp parviglumis) through a single domestication event in southern Mexico between 6000 and 9000 years ago. This domestication event resulted in the original maize landrace varieties, which were spread throughout the Americas by Nat...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Oxford University Press
2005
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/91871 |
| _version_ | 1855528114239569920 |
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| author | Yamasaki, M. Tenaillon, M. Vroh Bi, Irie Schroeder, S. Sánchez Villeda, H. Doebley, J.F. Gaut, B. McMullen, M. |
| author_browse | Doebley, J.F. Gaut, B. McMullen, M. Schroeder, S. Sánchez Villeda, H. Tenaillon, M. Vroh Bi, Irie Yamasaki, M. |
| author_facet | Yamasaki, M. Tenaillon, M. Vroh Bi, Irie Schroeder, S. Sánchez Villeda, H. Doebley, J.F. Gaut, B. McMullen, M. |
| author_sort | Yamasaki, M. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Maize (Zea mays subsp mays) was domesticated from teosinte (Z. mays subsp parviglumis) through a single domestication event in southern Mexico between 6000 and 9000 years ago. This domestication event resulted in the original maize landrace varieties, which were spread throughout the Americas by Native Americans and adapted to a wide range of environmental conditions. Starting with landraces, 20th century plant breeders selected inbred lines of maize for use in hybrid maize production. Both domestication and crop improvement involved selection of specific alleles at genes controlling key morphological and agronomic traits, resulting in reduced genetic diversity relative to unselected genes. Here, we sequenced 1095 maize genes from a sample of 14 inbred lines and chose 35 genes with zero sequence diversity as potential targets of selection. These 35 genes were then sequenced in a sample of diverse maize landraces and teosintes and tested for selection. Using two statistical tests, we identified eight candidate genes. Extended gene sequencing of these eight candidate loci confirmed that six were selected throughout the gene, and the remaining two exhibited evidence of selection in the 3′ portion of each gene. The selected genes have functions consistent with agronomic selection for nutritional quality, maturity, and productivity. Our large-scale screen for artificial selection allows identification of genes of potential agronomic importance even when gene function and the phenotype of interest are unknown. |
| format | Journal Article |
| id | CGSpace91871 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2005 |
| publishDateRange | 2005 |
| publishDateSort | 2005 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | CGSpace918712024-05-15T05:11:45Z Largescale screen for artificial selection in maize identifies candidate agronomic loci for domestication and crop improvement Yamasaki, M. Tenaillon, M. Vroh Bi, Irie Schroeder, S. Sánchez Villeda, H. Doebley, J.F. Gaut, B. McMullen, M. landraces maize domestication genes inbred lines phenotypic variation genetic variation Maize (Zea mays subsp mays) was domesticated from teosinte (Z. mays subsp parviglumis) through a single domestication event in southern Mexico between 6000 and 9000 years ago. This domestication event resulted in the original maize landrace varieties, which were spread throughout the Americas by Native Americans and adapted to a wide range of environmental conditions. Starting with landraces, 20th century plant breeders selected inbred lines of maize for use in hybrid maize production. Both domestication and crop improvement involved selection of specific alleles at genes controlling key morphological and agronomic traits, resulting in reduced genetic diversity relative to unselected genes. Here, we sequenced 1095 maize genes from a sample of 14 inbred lines and chose 35 genes with zero sequence diversity as potential targets of selection. These 35 genes were then sequenced in a sample of diverse maize landraces and teosintes and tested for selection. Using two statistical tests, we identified eight candidate genes. Extended gene sequencing of these eight candidate loci confirmed that six were selected throughout the gene, and the remaining two exhibited evidence of selection in the 3′ portion of each gene. The selected genes have functions consistent with agronomic selection for nutritional quality, maturity, and productivity. Our large-scale screen for artificial selection allows identification of genes of potential agronomic importance even when gene function and the phenotype of interest are unknown. 2005-11-02 2018-03-23T06:48:55Z 2018-03-23T06:48:55Z Journal Article https://hdl.handle.net/10568/91871 en Open Access Oxford University Press Yamasaki, M., Tenaillon, M., Bi, I., Schroeder, S., Sanchez-Villeda, H., Doebley, J., ... & McMullen, M. (2005). A large-scale screen for artificial selection in maize identifies candidate agronomic loci for domestication and crop improvement. Plant Cell, 17(11), 2859-2872. |
| spellingShingle | landraces maize domestication genes inbred lines phenotypic variation genetic variation Yamasaki, M. Tenaillon, M. Vroh Bi, Irie Schroeder, S. Sánchez Villeda, H. Doebley, J.F. Gaut, B. McMullen, M. Largescale screen for artificial selection in maize identifies candidate agronomic loci for domestication and crop improvement |
| title | Largescale screen for artificial selection in maize identifies candidate agronomic loci for domestication and crop improvement |
| title_full | Largescale screen for artificial selection in maize identifies candidate agronomic loci for domestication and crop improvement |
| title_fullStr | Largescale screen for artificial selection in maize identifies candidate agronomic loci for domestication and crop improvement |
| title_full_unstemmed | Largescale screen for artificial selection in maize identifies candidate agronomic loci for domestication and crop improvement |
| title_short | Largescale screen for artificial selection in maize identifies candidate agronomic loci for domestication and crop improvement |
| title_sort | largescale screen for artificial selection in maize identifies candidate agronomic loci for domestication and crop improvement |
| topic | landraces maize domestication genes inbred lines phenotypic variation genetic variation |
| url | https://hdl.handle.net/10568/91871 |
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