TY  - JA
AU  - Longjiang Fan
AU  - Jiandong Bao
AU  - Yu Wang
AU  - Jianqiang Yao
AU  - Yijie Gui
AU  - Weiming Hu
AU  - Jinqing Zhu
AU  - Mengqian Zeng
AU  - Yu Li
AU  - Yunbi Xu
TI  - Post-domestication selection in the maize starch pathway
SN  - 1932-6203 (Online)
PY  - 2009///
CY  - San Francisco, CA (USA)
PB  - Public Library of Science
KW  - Maize
KW  - AGROVOC
KW  - Starch
KW  - Genetic variation
KW  - Variety Choice
KW  - Nucleotide sequence
N1  - Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=1932-6203; Peer review; Open Access
N2  - Modern crops have usually experienced domestication selection and subsequent genetic improvement (post-domestication selection). Chinese waxy maize, which originated from non-glutinous domesticated maize (Zea mays ssp. mays), provides a unique model for investigating the post-domestication selection of maize. In this study, the genetic diversity of six key genes in the starch pathway was investigated in a glutinous population that included 55 Chinese waxy accessions, and a selective bottleneck that resulted in apparent reductions in diversity in Chinese waxy maize was observed. Significant positive selection in waxy (wx) but not amylose extender1 (ae1) was detected in the glutinous population, in complete contrast to the findings in non-glutinous maize, which indicated a shift in the selection target from ae1 to wx during the improvement of Chinese waxy maize. Our results suggest that an agronomic trait can be quickly improved into a target trait with changes in the selection target among genes in a crop pathway
UR  - http://hdl.handle.net/10883/1779
T2  - PLoS ONE
DO  - https://doi.org/10.1371/journal.pone.0007612
ER  -