期刊
SCIENCE
卷 353, 期 6306, 页码 1431-1433出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaf7812
关键词
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资金
- Genome Canada
- Genome BC
- Genome Alberta
- Alberta Innovates BioSolutions
- Forest Genetics Council of British Columbia
- Virginia Tech
- University of British Columbia
- NSF Plant Genome Research Program [IOS: 1054444]
- USDA National Institute of Food and Agriculture
- McIntire Stennis Project [10005394]
- British Columbia Ministry of Forests, Lands and Natural Resource Operations
- Division Of Integrative Organismal Systems
- Direct For Biological Sciences [1054444] Funding Source: National Science Foundation
- Alberta Innovates [201500363] Funding Source: researchfish
When confronted with an adaptive challenge, such as extreme temperature, closely related species frequently evolve similar phenotypes using the same genes. Although such repeated evolution is thought to be less likely in highly polygenic traits and distantly related species, this has not been tested at the genome scale. We performed a population genomic study of convergent local adaptation among two distantly related species, lodgepole pine and interior spruce. We identified a suite of 47 genes, enriched for duplicated genes, with variants associated with spatial variation in temperature or cold hardiness in both species, providing evidence of convergent local adaptation despite 140 million years of separate evolution. These results show that adaptation to climate can be genetically constrained, with certain key genes playing nonredundant roles.
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