| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2014-06-10 |
| タイトル |
|
|
タイトル |
From many, one: Genetic control of prolificacy during maize domestication |
| タイトル |
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|
タイトル |
From many, one: Genetic control of prolificacy during maize domestication |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Wills, David M.
TAKUNO, Shohei
et, al.
|
| 著者別名 |
宅野, 将平
|
| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
A reduction in number and an increase in size of inflorescences is a common aspect of plant domestication. When maize was domesticated from teosinte, the number and arrangement of ears changed dramatically. Teosinte has long lateral branches that bear multiple small ears at their nodes and tassels at their tips. Maize has much shorter lateral branches that are tipped by a single large ear with no additional ears at the branch nodes. To investigate the genetic basis of this difference in prolificacy (the number of ears on a plant), we performed a genome-wide QTL scan. A large effect QTL for prolificacy (prol1.1) was detected on the short arm of chromosome 1 in a location that has previously been shown to influence multiple domestication traits. We fine-mapped prol1.1 to a 2.7 kb “causative region” upstream of the grassy tillers1 (gt1) gene, which encodes a homeodomain leucine zipper transcription factor. Tissue in situ hybridizations reveal that the maize allele of prol1.1 is associated with up-regulation of gt1 expression in the nodal plexus. Given that maize does not initiate secondary ear buds, the expression of gt1 in the nodal plexus in maize may suppress their initiation. Population genetic analyses indicate positive selection on the maize allele of prol1.1, causing a partial sweep that fixed the maize allele throughout most of domesticated maize. This work shows how a subtle cis-regulatory change in tissue specific gene expression altered plant architecture in a way that improved the harvestability of maize. |
| 書誌情報 |
PLoS Genetics
en : PLoS Genetics
巻 9,
号 6,
p. e1003604,
発行日 2013-06
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| 出版者 |
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出版者 |
Public Library of Science |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
1553-7390 |
| 権利 |
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|
権利情報 |
© 2013 Wills et al. |
| 権利 |
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|
権利情報 |
Wills et al. | http://www.plosgenetics.org/article/fetchObject.action?uri=info%3Adoi%2F10.1371%2Fjournal.pgen.1003604&representation=PDF |
| 関連サイト |
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|
識別子タイプ |
URI |
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関連識別子 |
http://www.plos.org/open-access/ |
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関連名称 |
Wills et al. |
| フォーマット |
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内容記述タイプ |
Other |
|
内容記述 |
application/pdf |
| 著者版フラグ |
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出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
fetchObject (1.4 MB)
