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Status: Bibliographieeintrag

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Verfasst von:Wang, Xiao-Juan [VerfasserIn]   i
 German, Dmitry [VerfasserIn]   i
Titel:Demographic expansion and genetic load of the halophyte model plant Eutrema salsugineum
Verf.angabe:Xiao-Juan Wang, Quan-Jun Hu, Xin-Yi Guo, Kun Wang, Da-Fu Ru, Dmitry A. German, Elizabeth A. Weretilnyk, Richard J. Abbott, Martin Lascoux, Jian-Quan Liu
E-Jahr:2018
Jahr:4 June 2018
Umfang:13 S.
Fussnoten:Gesehen am 19.06.2019
Titel Quelle:Enthalten in: Molecular ecology
Ort Quelle:Oxford [u.a.] : Wiley-Blackwell, 1992
Jahr Quelle:2018
Band/Heft Quelle:27(2018), 14, Seite 2943-2955
ISSN Quelle:1365-294X
Abstract:The halophyte model plant Eutrema salsugineum (Brassicaceae) disjunctly occurs in temperate to subarctic Asia and North America. This vast, yet extremely discontinuous distribution constitutes an ideal system to examine long-distance dispersal and the ensuing accumulation of deleterious mutations as expected in expanding populations of selfing plants. In this study, we resequenced individuals from 23 populations across the range of E. salsugineum. Our population genomic data indicate that E. salsugineum migrated "out of the Altai region" at least three times to colonize northern China, northeast Russia and western China. It then expanded its distribution into North America independently from northeast Russia and northern China, respectively. The species colonized northern China around 33.7 thousand years ago (kya) and underwent a considerable expansion in range size approximately 7-8 kya. The western China lineage is likely a hybrid derivative of the northern China and Altai lineages, originating approximately 25-30 kya. Deleterious alleles accumulated in a stepwise manner from (a) Altai to northern China and North America and (b) Altai to northeast Russia and North America. In summary, E. salsugineum dispersed from Asia to North America and deleterious mutations accumulated in a stepwise manner during the expansion of the species' distribution.
DOI:doi:10.1111/mec.14738
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: http://dx.doi.org/10.1111/mec.14738
 DOI: https://doi.org/10.1111/mec.14738
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:Alleles
 Asia
 Brassicaceae
 China
 deleterious variant
 Eutrema salsugineum
 expansion
 Gene Expression Regulation, Plant
 Genetic Load
 Genetics, Population
 hybrid lineage
 long-distance dispersal
 migration
 North America
 Phylogeny
 Russia
 Salt Tolerance
 Salt-Tolerant Plants
K10plus-PPN:1667649434
Verknüpfungen:→ Zeitschrift

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