Dataset Information

Extreme genetic signatures of local adaptation during Lotus japonicus colonization of Japan.

ABSTRACT: Colonization of new habitats is expected to require genetic adaptations to overcome environmental challenges. Here, we use full genome re-sequencing and extensive common garden experiments to investigate demographic and selective processes associated with colonization of Japan by Lotus japonicus over the past ~20,000 years. Based on patterns of genomic variation, we infer the details of the colonization process where L. japonicus gradually spread from subtropical conditions to much colder climates in northern Japan. We identify genomic regions with extreme genetic differentiation between northern and southern subpopulations and perform population structure-corrected association mapping of phenotypic traits measured in a common garden. Comparing the results of these analyses, we find that signatures of extreme subpopulation differentiation overlap strongly with phenotype association signals for overwintering and flowering time traits. Our results provide evidence that these traits were direct targets of selection during colonization and point to associated candidate genes.

SUBMITTER: Shah N

PROVIDER: S-EPMC6959357 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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Publications

Extreme genetic signatures of local adaptation during Lotus japonicus colonization of Japan.

Shah Niraj N Wakabayashi Tomomi T Kawamura Yasuko Y Skovbjerg Cathrine Kiel CK Wang Ming-Zhuo MZ Mustamin Yusdar Y Isomura Yoshiko Y Gupta Vikas V Jin Haojie H Mun Terry T Sandal Niels N Azuma Fuyuki F Fukai Eigo E Seren Ümit Ü Kusakabe Shohei S Kikuchi Yuki Y Nitanda Shogo S Kumaki Takashi T Hashiguchi Masatsugu M Tanaka Hidenori H Hayashi Atsushi A Sønderkær Mads M Nielsen Kaare Lehmann KL Schneeberger Korbinian K Vilhjalmsson Bjarni B Akashi Ryo R Stougaard Jens J Sato Shusei S Schierup Mikkel Heide MH Andersen Stig Uggerhøj SU

Nature communications 20200114 1

Colonization of new habitats is expected to require genetic adaptations to overcome environmental challenges. Here, we use full genome re-sequencing and extensive common garden experiments to investigate demographic and selective processes associated with colonization of Japan by Lotus japonicus over the past ~20,000 years. Based on patterns of genomic variation, we infer the details of the colonization process where L. japonicus gradually spread from subtropical conditions to much colder climat ...[more]

PMID: 31937774

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Dataset Information

Extreme genetic signatures of local adaptation during Lotus japonicus colonization of Japan.

Publications

Extreme genetic signatures of local adaptation during Lotus japonicus colonization of Japan.

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