Genome-wide scan using DArT markers for selection footprints in six-rowed naked barley from the Tibetan Plateau

J.Q. Xu; L. Wang; B.L. Liu; T.F. Xia; D.C. Liu; X. Chang; T.W. Zhang; H.G. Zhang; Y.H. Shen

doi:10.1556/0806.46.2018.041

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Cereal Research Communications

Volume/Issue:: Volume 46: Issue 4

Genome-wide scan using DArT markers for selection footprints in six-rowed naked barley from the Tibetan Plateau

Authors:

J.Q. Xu

J.Q. Xu Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
University of Chinese Academy of Sciences, Beijing 100049, China

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L. Wang

L. Wang Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China

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B.L. Liu

B.L. Liu Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China

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T.F. Xia

T.F. Xia Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
University of Chinese Academy of Sciences, Beijing 100049, China

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D.C. Liu

D.C. Liu Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
Sichuan Agricultural University, Wenjiang 611130, China

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X. Chang

X. Chang Tibet Agriculture and Animal Husbandry College, Linzhi 860000, China

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T.W. Zhang

T.W. Zhang Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa 850002, China

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H.G. Zhang

H.G. Zhang Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China

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Y.H. Shen

Y.H. Shen Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China

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Pages:: 591–603

Online Publication Date:: Dec 2018

Publication Date:: 01 Dec 2018

Article Category:: Research Article

DOI:: https://doi.org/10.1556/0806.46.2018.041

Keywords:: domestication; Hordeum vulgare ; selective sweep

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As one of the world’s earliest domesticated crops, barley is a model species for the study of evolution and domestication. Domestication is an evolutionary process whereby a population adapts, through selection; to new environments created by human cultivation. We describe the genome-scanning of molecular diversity to assess the evolution of barley in the Tibetan Plateau. We used 667 Diversity Arrays Technology (DArT) markers to genotype 185 barley landraces and wild barley accessions from the Tibetan Plateau. Genetic diversity in wild barley was greater than in landraces at both genome and chromosome levels, except for chromosome 3H. Landraces and wild barley accessions were clearly differentiated genetically, but a limited degree of introgression was still evident. Significant differences in diversity between barley subspecies at the chromosome level were observed for genes known to be related to physiological and phenotypical traits, disease resistance, abiotic stress tolerance, malting quality and agronomic traits. Selection on the genome of six-rowed naked barley has shown clear multiple targets related to both its specific end-use and the extreme environment in Tibet. Our data provide a platform to identify the genes and genetic mechanisms that underlie phenotypic changes, and provide lists of candidate domestication genes for modified breeding strategies.

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Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company

Print ISSN:: 0133-3720

Online ISSN:: 1788-9170

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Cereal Research Communications
Language	English
Size	A4
Year of Foundation	1973
Volumes per Year	1
Issues per Year	4
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0133-3720 (Print)
ISSN	1788-9170 (Online)