2021
Genome evolution of the psammophyte Pugionium for desert adaptation and further speciation
HU, Q.J., Y.Z. MA, Terezie MALÍK MANDÁKOVÁ, S. SHI, C.L. CHEN et. al.Základní údaje
Originální název
Genome evolution of the psammophyte Pugionium for desert adaptation and further speciation
Autoři
HU, Q.J., Y.Z. MA, Terezie MALÍK MANDÁKOVÁ (203 Česká republika, domácí), 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 Česká republika, garant, domácí), Z.X. XI, E. NEVO a J.Q. LIU
Vydání
Proceedings of the National Academy of Sciences of the United States of America, WASHINGTON, NATL ACAD SCIENCES, 2021, 0027-8424
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10611 Plant sciences, botany
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 12.779
Kód RIV
RIV/00216224:14740/21:00124290
Organizační jednotka
Středoevropský technologický institut
UT WoS
000710710000004
Klíčová slova anglicky
polyploidization; chromosomal structural variation; microhabitat divergence
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 18. 5. 2022 13:41, Mgr. Pavla Foltynová, Ph.D.
Anotace
V originále
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.
Návaznosti
LQ1601, projekt VaV |
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