Minisatellite mutation rates increase with extra-pair paternity among birds
نویسندگان
چکیده
منابع مشابه
Extra-Pair Paternity in Birds: Review of the Genetic Benefits
Question: How well are genetic benefits hypotheses for extra-pair paternity supported by empirical evidence? Data incorporated: Almost all published studies testing for genetic benefits from 1980 onwards (121 papers, 55 species). Analysis methods: Collected key features and findings of each study in a database. Determined overall level of support for both good genes and compatible genes hypothe...
متن کاملExtra-pair Paternity in the Common Murre1
Multi-locus DNA fingerprinting was used to estimate the frequency of extra-pair paternity in the Common Murre (Uria aalge), a colonial, sexually monomorphic seabird that breeds at very high densities and in which extra-pair copulation is frequent. Common Murres produce a single chick. We detected 6 cases of extra-pair paternity in 77 families (7.8%). This value was higher than the proportion of...
متن کاملExtra-pair paternity in Seaside Sparrows
Seaside Sparrows (Ammodramus maritimus) nest at varying population densities, and breeding pairs may occupy either large, all-purpose activity spaces or small nesting territories, foraging in undefended areas separate from the nest site. We determined the prevalence of extra-pair paternity in a large, socially monogamous population of Seaside Sparrows nesting in small, overlapping territories. ...
متن کاملStructural equation modeling as a tool to investigate correlates of extra-pair paternity in birds
Identifying relationships between variables in ecological systems is challenging due to the large number of interacting factors. One system studied in detail is avian reproduction, where molecular analyses have revealed dramatic variation in rates of extra-pair paternity-the frequency with which broods contain individuals sired by different males. Despite the attention the topic has received, i...
متن کاملThe degree of extra-pair paternity increases with genetic variability.
The amount of extra-pair paternity in socially monogamous bird species varies from 0% to 76% extra-pair offspring. The causes of this remarkable interspecific variation are largely unknown, although intraspecific analyses suggest that females seek extra-pair matings to improve the genetic quality of their offspring. If this is a general explanation for the occurrence of extra-pair matings, then...
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ژورنال
عنوان ژورنال: BMC Evolutionary Biology
سال: 2009
ISSN: 1471-2148
DOI: 10.1186/1471-2148-9-100