Genetic Diversity and Population Structure of Teosinte

Kenji Fukunaga; Jason Hill; Yves Vigouroux; Yoshihiro Matsuoka; Jesus Sanchez G.; Kejun Liu; Edward S. Buckler; John Doebley

doi:10.1534/genetics.104.031393

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Genetic Diversity and Population Structure of Teosinte

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Genetic Diversity and Population Structure of Teosinte

Kenji Fukunaga, Jason Hill, Yves Vigouroux, Yoshihiro Matsuoka, Jesus Sanchez G., Kejun Liu, Edward S. Buckler et John Doebley

Genetics (Austin), Vol.169(4), pp.2241-2254

01/04/2005

DOI: https://doi.org/10.1534/genetics.104.031393

PMID: 15687282

Résumé

Investigations

The teosintes, the closest wild relatives of maize, are important resources for the study of maize genetics and evolution and for plant breeding. We genotyped 237 individual teosinte plants for 93 microsatellites. Phylogenetic relationships among species and subspecific taxa were largely consistent with prior analyses for other types of molecular markers. Plants of all species formed monophyletic clades, although relationships among species were not fully resolved. Phylogenetic analysis indicated that the Mexican annual teosintes divide into two clusters that largely correspond to the previously defined subspecies, Z. mays ssp. parviglumis and ssp. mexicana, although there are a few samples that represent either evolutionary intermediates or hybrids between these two subspecies. The Mexican annual teosintes show genetic substructuring along geographic lines. Hybridization or introgression between some teosintes and maize occurs at a low level and appears most common with Z. mays ssp. mexicana. Phylogeographic and phylogenetic analyses of the Mexican annual teosintes indicated that ssp. parviglumis diversified in the eastern part of its distribution and spread from east to west and that ssp. mexicana diversified in the Central Plateau of Mexico and spread along multiple paths to the north and east. We defined core sets of collections of Z. mays ssp. mexicana and ssp. parviglumis that attempt to capture the maximum number of microsatellite alleles for given sample sizes.

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Détails

Titre: Genetic Diversity and Population Structure of Teosinte
Créateurs - sans rôle: Kenji Fukunaga - Laboratory of Genetics, University of Wisconsin, Madison, Wisconsin 53706 Department of Plant Biology, University of Minnesota, St. Paul, Minnesota 55108 Centro Universitario de Ciencias Biologicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, Mexico CP45110 Statistics Department, North Carolina State University, Raleigh, North Carolina 27695 USDA-ARS, Institute for Genomic Diversity, Cornell University, Ithaca, New York 14853
Jason Hill - Laboratory of Genetics, University of Wisconsin, Madison, Wisconsin 53706 Department of Plant Biology, University of Minnesota, St. Paul, Minnesota 55108 Centro Universitario de Ciencias Biologicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, Mexico CP45110 Statistics Department, North Carolina State University, Raleigh, North Carolina 27695 USDA-ARS, Institute for Genomic Diversity, Cornell University, Ithaca, New York 14853
Yves Vigouroux - Laboratory of Genetics, University of Wisconsin, Madison, Wisconsin 53706 Department of Plant Biology, University of Minnesota, St. Paul, Minnesota 55108 Centro Universitario de Ciencias Biologicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, Mexico CP45110 Statistics Department, North Carolina State University, Raleigh, North Carolina 27695 USDA-ARS, Institute for Genomic Diversity, Cornell University, Ithaca, New York 14853
Yoshihiro Matsuoka - Laboratory of Genetics, University of Wisconsin, Madison, Wisconsin 53706 Department of Plant Biology, University of Minnesota, St. Paul, Minnesota 55108 Centro Universitario de Ciencias Biologicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, Mexico CP45110 Statistics Department, North Carolina State University, Raleigh, North Carolina 27695 USDA-ARS, Institute for Genomic Diversity, Cornell University, Ithaca, New York 14853
Jesus Sanchez G. - Laboratory of Genetics, University of Wisconsin, Madison, Wisconsin 53706 Department of Plant Biology, University of Minnesota, St. Paul, Minnesota 55108 Centro Universitario de Ciencias Biologicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, Mexico CP45110 Statistics Department, North Carolina State University, Raleigh, North Carolina 27695 USDA-ARS, Institute for Genomic Diversity, Cornell University, Ithaca, New York 14853
Kejun Liu - Laboratory of Genetics, University of Wisconsin, Madison, Wisconsin 53706 Department of Plant Biology, University of Minnesota, St. Paul, Minnesota 55108 Centro Universitario de Ciencias Biologicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, Mexico CP45110 Statistics Department, North Carolina State University, Raleigh, North Carolina 27695 USDA-ARS, Institute for Genomic Diversity, Cornell University, Ithaca, New York 14853
Edward S. Buckler - North Carolina State University
John Doebley - Laboratory of Genetics, University of Wisconsin, Madison, Wisconsin 53706 Department of Plant Biology, University of Minnesota, St. Paul, Minnesota 55108 Centro Universitario de Ciencias Biologicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, Mexico CP45110 Statistics Department, North Carolina State University, Raleigh, North Carolina 27695 USDA-ARS, Institute for Genomic Diversity, Cornell University, Ithaca, New York 14853
Détails de publication: Genetics (Austin), Vol.169(4), pp.2241-2254
Éditeur: Genetics Society of America
Nombre de pages: 14
Identifiants: 99136545009311
Unité académique: Diversité, Adaptation et Développement des plantes - DIADE
Langue: English
Type de ressource: Journal article