Abstract：
:After domestication, during a process of widespread range extension, barley adapted to a broad spectrum of agricultural environments. To explore how the barley genome responded to the environmental challenges it encountered, we sequenced the exomes of a collection of 267 georeferenced landraces and wild accessions. A combination of genome-wide analyses showed that patterns of variation have been strongly shaped by geography and that variant-by-environment associations for individual genes are prominent in our data set. We observed significant correlations of days to heading (flowering) and height with seasonal temperature and dryness variables in common garden experiments, suggesting that these traits were major drivers of environmental adaptation in the sampled germplasm. A detailed analysis of known flowering-associated genes showed that many contain extensive sequence variation and that patterns of single- and multiple-gene haplotypes exhibit strong geographical structuring. This variation appears to have substantially contributed to range-wide ecogeographical adaptation, but many factors key to regional success remain unidentified.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
Russell J,Mascher M,Dawson IK,Kyriakidis S,Calixto C,Freund F,Bayer M,Milne I,Marshall-Griffiths T,Heinen S,Hofstad A,Sharma R,Himmelbach A,Knauft M,van Zonneveld M,Brown JW,Schmid K,Kilian B,Muehlbauer GJ,Stein N,doi
10.1038/ng.3612subject
Has Abstractpub_date
2016-09-01 00:00:00pages
1024-30issue
9eissn
1061-4036issn
1546-1718pii
ng.3612journal_volume
48pub_type
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