期刊
EVOLUTIONARY APPLICATIONS
卷 7, 期 10, 页码 1209-1217出版社
WILEY
DOI: 10.1111/eva.12214
关键词
evolutionary rescue; extinction; genetic variation; global change; hybridization; Saccharomyces
资金
- Max-Planck Society
- Marie Curie IEF
- Natural Environment Research Council [NE/F000979/1] Funding Source: researchfish
- NERC [NE/F000979/1] Funding Source: UKRI
The resilience of populations to rapid environmental degradation is a major concern for biodiversity conservation. When environments deteriorate to lethal levels, species must evolve to adapt to the new conditions to avoid extinction. Here, we test the hypothesis that evolutionary rescue may be enabled by hybridization, because hybridization increases genetic variability. Using experimental evolution, we show that interspecific hybrid populations of Saccharomyces yeast adapt to grow in more highly degraded environments than intraspecific and parental crosses, resulting in survival rates far exceeding those of their ancestors. We conclude that hybridization can increase evolutionary responsiveness and that taxa able to exchange genes with distant relatives may better survive rapid environmental change.
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