title: DNA changes tell us about rice domestication.
abstract: Crop domestication can be considered a model system of plant evolution. Genome analyses of rice have revealed the fine population structure of this major crop associated with local origins of landraces. Recent cloning of rice domestication-related genes and identification of the responsible functional nucleotide polymorphisms in landraces, while taking into account their population structures, have revealed the existence of historical signatures of the DNA involved in the domestication process. These signatures imply the importance of multiple selection steps wherein natural variants were combined to improve crop performance during domestication. These analyses will provide new insights into the relationship between Darwinian selection for agronomical phenotypes and DNA changes in terms of plant evolution.
authors.affiliation: Plant Genome Research Unit, National Institute of Agrobiological Sciences, Tsukuba 305-8602, Japan. izawa@nias.affrc.go.jp
authors.forename: Takeshi
authors.initials: T
authors.lastname: Izawa
authors.forename: Saeko
authors.initials: S
authors.lastname: Konishi
authors.forename: Ayahiko
authors.initials: A
authors.lastname: Shomura
authors.forename: Masahiro
authors.initials: M
authors.lastname: Yano
mesh_terms: D001106:Archaeology; D005075:Biological Evolution; D018556:Crops, Agricultural / Q000235:genetics*; D018744:DNA, Plant / Q000235:genetics*; D008957:Models, Genetic; D012275:Oryza / Q000235:genetics*
chemical_list: D018744:DNA, Plant