期刊
BIOESSAYS
卷 36, 期 4, 页码 335-345出版社
WILEY-BLACKWELL
DOI: 10.1002/bies.201300155
关键词
adaptation; asexual; genome evolution; meiosis; mitosis; recombination
资金
- Research Council for Earth and Life Sciences (ALW) of the Netherlands Organization for Scientific Research (NWO)
All species continuously evolve to adapt to changing environments. The genetic variation that fosters such adaptation is caused by a plethora of mechanisms, including meiotic recombination that generates novel allelic combinations in the progeny of two parental lineages. However, a considerable number of eukaryotic species, including many fungi, do not have an apparent sexual cycle and are consequently thought to be limited in their evolutionary potential. As such organisms are expected to have reduced capability to eliminate deleterious mutations, they are often considered as evolutionary dead ends. However, inspired by recent reports we argue that such organisms can be as persistent as organisms with conventional sexual cycles through the use of other mechanisms, such as genomic rearrangements, to foster adaptation.
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