Coevolutionary Biology: Sex and the Geographic Mosaic of Coevolution
نویسنده
چکیده
Natural selection can favor the coexistence of sexual and asexual forms of a species even within a single ecosystem, when hotspots of coevolution between hosts and parasites occur next to coldspots.
منابع مشابه
The Geographic Mosaic of Sex and the Red Queen
The maintenance of sexual reproduction in natural populations is a pressing question for evolutionary biologists. Under the "Red Queen" hypothesis, coevolving parasites reduce the reproductive advantage of asexual reproduction by adapting to infect clonal genotypes after they become locally common. In addition, the "geographic mosaic" theory of coevolution proposes that structured populations o...
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SYNOPSIS. Many of the most commonly cited examples of exquisite adaptation are of coevolved symbioses. As we learn more about the coevolutionary process, however, it is becoming increasingly evident that coevolution may also keep populations moderately maladapted much of the time. As a result, coevolving populations may only rarely occupy adaptive peaks, because the selective landscape is under...
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عنوان ژورنال:
- Current Biology
دوره 19 شماره
صفحات -
تاریخ انتشار 2009