Intra-ejaculate sperm selection in female zebra finches
نویسندگان
چکیده
منابع مشابه
Correction to ‘Intra-ejaculate sperm selection in female zebra finches’
Among internal fertilizers, typically fewer than 1% sperm survive the journey through the oviduct. Several studies suggest that the sperm reaching the ovum-the 'fertilizing set'-comprise a non-random sub-population, but the characteristics of this group remain unclear. We tested whether oviductal selection in birds results in a morphologically distinct subset of sperm, by exploiting the fact th...
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When females mate promiscuously, female sperm storage provides scope to bias the fertilization success towards particular males via the non-random acceptance and utilization of sperm. The difficulties observing post-copulatory processes within the female reproductive tract mean that the mechanisms underlying cryptic female choice remain poorly understood. Here, we use zebra finches Taeniopygia ...
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Parental investment in unrelated offspring seems maladaptive from an evolutionary perspective, due to the costs of energy and resources that cannot be invested in related offspring at the same time. Therefore selection should favour mechanisms to discriminate between own and foreign offspring. In birds, much emphasis has been placed on understanding the visual mechanisms underlying egg recognit...
متن کاملSelection on female remating interval is influenced by male sperm competition strategies and ejaculate characteristics.
Female remating rate dictates the level of sperm competition in a population, and extensive research has focused on how sperm competition generates selection on male ejaculate allocation. Yet the way ejaculate allocation strategies in turn generate selection on female remating rates, which ultimately influence levels of sperm competition, has received much less consideration despite increasing ...
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software tool that bins genomic fragments that have first undergone limited preassembly into contigs. Their strategy uses a variational Bayesian approach combining sequence composition and correlated abundance across multiple samples to produce sequence assignments. CONCOCT bins genomes with high precision and recall in simulated and real data, providing higher coverage than can typically be re...
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ژورنال
عنوان ژورنال: Biology Letters
سال: 2016
ISSN: 1744-9561,1744-957X
DOI: 10.1098/rsbl.2016.0220