Elucidation of the origin of 'agriocrithon' based on domestication genes questions the hypothesis that Tibet is one of the centers of barley domestication

The Plant Journal : for Cell and Molecular Biology
Mohammad PourkheirandishTakao Komatsuda

Abstract

Wild barley forms a two-rowed spike with a brittle rachis whereas domesticated barley has two- or six-rowed spikes with a tough rachis. Like domesticated barley, 'agriocrithon' forms a six-rowed spike; however, the spike is brittle as in wild barley, which makes the origin of agriocrithon obscure. Haplotype analysis of the Six-rowed spike 1 (vrs1) and Non-brittle rachis 1 (btr1) and 2 (btr2) genes was conducted to infer the origin of agriocrithon barley. Some agriocrithon barley accessions (eu-agriocrithon) carried Btr1 and Btr2 haplotypes that are not found in any cultivars, implying that they are directly derived from wild barley through a mutation at the vrs1 locus. Other agriocrithon barley accessions (pseudo-agriocrithon) carried Btr1 or Btr2 from cultivated barley, thus implying that they originated from hybridization between six-rowed landraces carrying btr1Btr2 and Btr1btr2 genotypes followed by recombination to produce Btr1Btr2. All materials we collected from Tibet belong to pseudo-agriocrithon and thus do not support the Tibetan Plateau as being a center of barley domestication. Tracing the evolutionary history of these allelic variants revealed that eu-agriocrithon represents six-rowed barley lineages that were sele...Continue Reading

References

Apr 15, 2004·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Adel H Abdel-GhaniHartwig H Geiger
Jan 16, 2007·Proceedings of the National Academy of Sciences of the United States of America·Takao KomatsudaMasahiro Yano
Sep 1, 2007·Annals of Botany·Mohammad Pourkheirandish, Takao Komatsuda
Oct 4, 2012·Proceedings of the National Academy of Sciences of the United States of America·Fei DaiGuoping Zhang
Sep 10, 2014·Proceedings of the National Academy of Sciences of the United States of America·Fei DaiGuoping Zhang
Aug 2, 2015·Cell·Mohammad PourkheirandishTakao Komatsuda

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Citations

Oct 29, 2018·The New Phytologist·Garrett M JanzenMatthew B Hufford
Nov 14, 2018·Nature Genetics·Sara G MilnerNils Stein
Nov 11, 2018·Journal of Integrative Plant Biology·Matthew HaasMartin Mascher
Dec 24, 2018·Nature Communications·Xingquan ZengNyima Tashi
Mar 3, 2021·Trends in Plant Science·Dongya WuLongjiang Fan
Jun 17, 2021·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Jin-Hui WangGuang-Bing Deng
Dec 10, 2021·The Plant Journal : for Cell and Molecular Biology·Agustin ZsögönAlisdair R Fernie

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