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The effect of artificial selection on phenotypic plasticity in maize.


ABSTRACT: Remarkable productivity has been achieved in crop species through artificial selection and adaptation to modern agronomic practices. Whether intensive selection has changed the ability of improved cultivars to maintain high productivity across variable environments is unknown. Understanding the genetic control of phenotypic plasticity and genotype by environment (G?×?E) interaction will enhance crop performance predictions across diverse environments. Here we use data generated from the Genomes to Fields (G2F) Maize G?×?E project to assess the effect of selection on G?×?E variation and characterize polymorphisms associated with plasticity. Genomic regions putatively selected during modern temperate maize breeding explain less variability for yield G?×?E than unselected regions, indicating that improvement by breeding may have reduced G?×?E of modern temperate cultivars. Trends in genomic position of variants associated with stability reveal fewer genic associations and enrichment of variants 0-5000 base pairs upstream of genes, hypothetically due to control of plasticity by short-range regulatory elements.

SUBMITTER: Gage JL 

PROVIDER: S-EPMC5677005 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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The effect of artificial selection on phenotypic plasticity in maize.

Gage Joseph L JL   Jarquin Diego D   Romay Cinta C   Lorenz Aaron A   Buckler Edward S ES   Kaeppler Shawn S   Alkhalifah Naser N   Bohn Martin M   Campbell Darwin A DA   Edwards Jode J   Ertl David D   Flint-Garcia Sherry S   Gardiner Jack J   Good Byron B   Hirsch Candice N CN   Holland Jim J   Hooker David C DC   Knoll Joseph J   Kolkman Judith J   Kruger Greg G   Lauter Nick N   Lawrence-Dill Carolyn J CJ   Lee Elizabeth E   Lynch Jonathan J   Murray Seth C SC   Nelson Rebecca R   Petzoldt Jane J   Rocheford Torbert T   Schnable James J   Schnable Patrick S PS   Scully Brian B   Smith Margaret M   Springer Nathan M NM   Srinivasan Srikant S   Walton Renee R   Weldekidan Teclemariam T   Wisser Randall J RJ   Xu Wenwei W   Yu Jianming J   de Leon Natalia N  

Nature communications 20171107 1


Remarkable productivity has been achieved in crop species through artificial selection and adaptation to modern agronomic practices. Whether intensive selection has changed the ability of improved cultivars to maintain high productivity across variable environments is unknown. Understanding the genetic control of phenotypic plasticity and genotype by environment (G × E) interaction will enhance crop performance predictions across diverse environments. Here we use data generated from the Genomes  ...[more]

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