A comment on gene introgression versus en masse cycle switching in the evolution of 13-year and 17-year life cycles in periodical cicadas.
نویسندگان
چکیده
منابع مشابه
The Ecology, Behavior, and Evolution of Periodical Cicadas
Periodical cicada nymphs feed underground on root xylem fluids for precisely 13 or 17 years before emerging at any given locality synchronously and in tremendous numbers. Populations throughout the eastern United States are grouped into variously sized, geographically contiguous broods, which are reproductively isolated from each other. Six distinct species represent the 13and 17-year life cycl...
متن کاملLife Cycle Replacement by Gene Introduction under an Allee Effect in Periodical Cicadas
Periodical cicadas (Magicicada spp.) in the USA are divided into three species groups (-decim, -cassini, -decula) of similar but distinct morphology and behavior. Each group contains at least one species with a 17-year life cycle and one with a 13-year cycle; each species is most closely related to one with the other cycle. One explanation for the apparent polyphyly of 13- and 17-year life cycl...
متن کاملAgent Based Simulation in Biology: the Case of Periodical Insects as Natural Prime Numbers Generators
Magicicada is the genus of the 13 and 17 year periodical cicadas of eastern North America; these insects display a unique combination of long life cycles, periodicity, and mass emergences. Their nymphs live underground and stay immobile before constructing an exit tunnel in the spring of their 13th or 17th year, depending on the species. Once out, the adult insects live only for a few weeks wit...
متن کاملLife Cycle in Periodical Cicadas
-Several lines of evidence suggest that the 13-year life cycle is genetically dominant over the 17-year life cycle in periodical cicadas. They are: (1) 13-year dominance best predicts the decline of 17 -year Brood X, and concomitant increase in Brood XIX in the midwest, following a hypothesized 1868 hybridization with 13-year Brood XIX through assimilation of heterozygotes into Brood XIX; (2) t...
متن کاملEvolution of periodicity in periodical cicadas
Periodical cicadas (Magicicada spp.) in the USA are famous for their unique prime-numbered life cycles of 13 and 17 years and their nearly perfectly synchronized mass emergences. Because almost all known species of cicada are non-periodical, periodicity is assumed to be a derived state. A leading hypothesis for the evolution of periodicity in Magicicada implicates the decline in average tempera...
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ورودعنوان ژورنال:
- Evolution; international journal of organic evolution
دوره 57 2 شماره
صفحات -
تاریخ انتشار 2003