HU, Q.J., Y.Z. MA, Terezie MALÍK MANDÁKOVÁ, S. SHI, C.L. CHEN, P.C. SUN, L. ZHANG, L.D. FENG, Y.D. ZHENG, X.Q. FENG, W.J. YANG, J.B. JIANG, T. LI, P.P. ZHOU, Q.S. YU, D.S. WAN, Martin LYSÁK, Z.X. XI, E. NEVO and J.Q. LIU. Genome evolution of the psammophyte Pugionium for desert adaptation and further speciation. Proceedings of the National Academy of Sciences of the United States of America. WASHINGTON: NATL ACAD SCIENCES, 2021, vol. 118, No 42, p. „e2025711118“, 7 pp. ISSN 0027-8424. Available from: https://dx.doi.org/10.1073/pnas.2025711118.
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Basic information
Original name Genome evolution of the psammophyte Pugionium for desert adaptation and further speciation
Authors HU, Q.J., Y.Z. MA, Terezie MALÍK MANDÁKOVÁ (203 Czech Republic, belonging to the institution), S. SHI, C.L. CHEN, P.C. SUN, L. ZHANG, L.D. FENG, Y.D. ZHENG, X.Q. FENG, W.J. YANG, J.B. JIANG, T. LI, P.P. ZHOU, Q.S. YU, D.S. WAN, Martin LYSÁK (203 Czech Republic, guarantor, belonging to the institution), Z.X. XI, E. NEVO and J.Q. LIU.
Edition Proceedings of the National Academy of Sciences of the United States of America, WASHINGTON, NATL ACAD SCIENCES, 2021, 0027-8424.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10611 Plant sciences, botany
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 12.779
RIV identification code RIV/00216224:14740/21:00124290
Organization unit Central European Institute of Technology
Doi http://dx.doi.org/10.1073/pnas.2025711118
UT WoS 000710710000004
Keywords in English polyploidization; chromosomal structural variation; microhabitat divergence
Tags rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Pavla Foltynová, Ph.D., učo 106624. Changed: 18/5/2022 13:41.
Abstract
Deserts exert strong selection pressures on plants, but the underlying genomic drivers of ecological adaptation and subsequent speciation remain largely unknown. Here, we generated de novo genome assemblies and conducted population genomic analyses of the psammophytic genus Pugionium (Brassicaceae). Our results indicated that this bispecific genus had undergone an allopolyploid event, and the two parental genomes were derived from two ancestral lineages with different chromosome numbers and structures. The postpolyploid expansion of gene families related to abiotic stress responses and lignin biosynthesis facilitated environmental adaptations of the genus to desert habitats. Population genomic analyses of both species further revealed their recent divergence with continuous gene flow, and the most divergent regions were found to be centered on three highly structurally reshuffled chromosomes. Genes under selection in these regions, which were mainly located in one of the two subgenomes, contributed greatly to the interspecific divergence in microhabitat adaptation.
Links
LQ1601, research and development projectName: CEITEC 2020 (Acronym: CEITEC2020)
Investor: Ministry of Education, Youth and Sports of the CR
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