Journal article

Wheat domestication in light of haplotype analyses of the Brittle rachis 1 genes (BTR1-A and BTR1-B)

Moran Nave, Raz Avni, Esra Cakir, Vitaly Portnoy, Hanan Sela, Mohammad Pourkheirandish, Hakan Ozkan, Iago Hale, Takao Komatsuda, Jan Dvorak, Assaf Distelfeld

PLANT SCIENCE | ELSEVIER IRELAND LTD | Published : 2019

Abstract

Wheat domestication was a milestone in the rise of agrarian societies in the Fertile Crescent. As opposed to the freely dispersing seeds of its tetraploid progenitor wild emmer, the hallmark trait of domesticated wheat is intact, harvestable spikes. During domestication, wheat acquired recessive loss-of-function mutations in the Brittle Rachis 1 genes, both in the A genome (BTR1-A) and B genome (BTR1-B). In this study, we probe the geographical provenances of these mutations via haplotype analyses of a collection of wild and domesticated accessions. Our results show that the precursor of the domesticated haplotype of BTR1-A was detected in 32% of the wild accessions gathered throughout the L..

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Grants

Awarded by United States Israel Binational Science Foundation (BSF grant)


Awarded by US-Israel Binational Agricultural Research and Development Fund (BARD project)


Awarded by Israel Science Foundation (ISF)


Awarded by Cukurova University


Funding Acknowledgements

This research was funded by the United States Israel Binational Science Foundation (BSF grant 2015409), the US-Israel Binational Agricultural Research and Development Fund (BARD project No. IS-4829-15), and the Israel Science Foundation (ISF grant 1137/17). HO acknowledges support from Cukurova University (FBA-2017-7930).