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DOI	10.1073/pnas.1920415117
	Sympatric speciation of wild emmer wheat driven by ecology and chromosomal rearrangements
	Wang H.; Yin H.; Jiao C.; Fang X.; Wang G.; Li G.; Ni F.; Li P.; Su P.; Ge W.; Lyu Z.; Xu S.; Yang Y.; Hao Y.; Cheng X.; Zhao J.; Liu C.; Xu F.; Ma X.; Sun S.; Zhao Y.; Bao Y.; Liu C.; Zhang J.; Pavlicek T.; Li A.; Yang Z.; Nevo E.; Kong L.
发表日期	2020
ISSN	0027-8424
起始页码	5955
结束页码	5963
卷号	117 期号:11
英文摘要	In plants, the mechanism for ecological sympatric speciation (SS) is little known. Here, after ruling out the possibility of secondary contact, we show that wild emmer wheat, at the microclimatically divergent microsite of “Evolution Canyon” (EC), Mt. Carmel, Israel, underwent triple SS. Initially, it split following a bottleneck of an ancestral population, and further diversified to three isolated populations driven by disruptive ecological selection. Remarkably, two postzygotically isolated populations (SFS1 and SFS2) sympatrically branched within an area less than 30 m at the tropical hot and dry savannoid south-facing slope (SFS). A series of homozygous chromosomal rearrangements in the SFS1 population caused hybrid sterility with the SFS2 population. We demonstrate that these two populations developed divergent adaptive mechanisms against severe abiotic stresses on the tropical SFS. The SFS2 population evolved very early flowering, while the SFS1 population alternatively evolved a direct tolerance to irradiance by improved ROS scavenging activity that potentially accounts for its evolutionary fate with unstable chromosome status. Moreover, a third prezygotically isolated sympatric population adapted on the abutting temperate, humid, cool, and forested north-facing slope (NFS), separated by 250 m from the SFS wild emmer wheat populations. The NFS population evolved multiple resistant loci to fungal diseases, including powdery mildew and stripe rust. Our study illustrates how plants sympatrically adapt and speciate under disruptive ecological selection of abiotic and biotic stresses. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Abiotic stress; Biotic stress; Robertsonian translocation; Sympatric speciation; Wild emmer wheat
语种	英语
scopus关键词	reactive oxygen metabolite; abiotic stress; Article; binding affinity; biotic stress; chromosome rearrangement; emmer; flowering; fungal plant disease; gene locus; genetic variability; genomics; nonhuman; oxidative stress; plant ecology; plant gene; priority journal; single nucleotide polymorphism; sympatry; tropic climate; wild plant; wild type; Ascomycetes; Basidiomycetes; disease resistance; gene flow; genetics; homozygote; Israel; karyotyping; microbiology; physiological stress; plant chromosome; plant disease; sympatry; wheat; Ascomycota; Basidiomycota; Chromosomes, Plant; Disease Resistance; Gene Flow; Genes, Plant; Homozygote; Israel; Karyotyping; Plant Diseases; Stress, Physiological; Sympatry; Triticum
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/161022
作者单位	Wang, H., State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai’an, 271018, China; Yin, H., College of Agronomy, Qingdao Agricultural University, Qingdao, 266109, China; Jiao, C., Novogene Bioinformatics Institute, Beijing, 100083, China; Fang, X., State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai’an, 271018, China; Wang, G., State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai’an, 271018, China; Li, G., Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, China; Ni, F., State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai’an, 271018, China; Li, P., State Key Laboratory of Cro...
推荐引用方式 GB/T 7714	Wang H.,Yin H.,Jiao C.,et al. Sympatric speciation of wild emmer wheat driven by ecology and chromosomal rearrangements[J],2020,117(11).
APA	Wang H..,Yin H..,Jiao C..,Fang X..,Wang G..,...&Kong L..(2020).Sympatric speciation of wild emmer wheat driven by ecology and chromosomal rearrangements.Proceedings of the National Academy of Sciences of the United States of America,117(11).
MLA	Wang H.,et al."Sympatric speciation of wild emmer wheat driven by ecology and chromosomal rearrangements".Proceedings of the National Academy of Sciences of the United States of America 117.11(2020).