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Plant Communications 2023年第5期4卷 112-133页

作者： Dan G.Bock Zhe Cai Cassandra Elphinstone Eric Gonza lez-Segovia Kaede Hirabayashi Kaichi Huang Graeme L.Keais Amy Kim Gregory L.Owens Loren H.Rieseberg Department of Botany and Biodiversity Research Centre University of British ColumbiaVancouverBCCanada Department of Biology University of VictoriaVictoriaBCCanada

Studies of plants have been instrumental for revealing how new species *** several decades,botanical research has complemented and,in some cases,challenged concepts on speciation developed via the study of other organisms while also revealing additional ways in which species can ***,the ability to sequence genomes at an unprecedented pace and scale has allowed biologists to settle decades-long debates and tackle other emerging challenges in speciation ***,we review these recent genome-enabled developments in plant *** discuss complications related to identification of reproductive isolation(RI)loci using analyses of the landscape of genomic divergence and highlight the important role that structural variants have in speciation,as increasingly revealed by new sequencing ***,we review how genomics has advanced what we know of some routes to new species formation,like hybridization or whole-genome duplication,while casting doubt on others,like population bottlenecks and genetic *** genomics can fast-track identification of genes and mutations that confer RI,we emphasize that follow-up molecular and field experiments remain ***,genomics has clarified the outsized role of ancient variants rather than new mutations,particularly early during *** conclude by highlighting promising avenues of future *** include expanding what we know so far about the role of epigenetic and structural changes during speciation,broadening the scope and taxonomic breadth of plant speciation genomics studies,and synthesizing information from extensive genomic data that have already been generated by the plant speciation community.

关键词： genomic islands of speciation structural variation hybrid speciation polyploid speciation reproductive isolation standing genetic variation

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