TEMPERATURE DETERMINATION OF MALE OUTCROSSING ABILITY IN A SIMULTANEOUS HERMAPHRODITE
نویسندگان
چکیده
منابع مشابه
Quantifying sexual conflict in a simultaneous hermaphrodite
Sexual encounters are usually accompanied by conflicts of interest between the mating partners. In animals with separate sexes such sexual conflicts can play a crucial role in the evolution of reproductive systems, and can even lead to speciation. Conflict arises when male strategies evolve that enhance the chances of fertilization, but at the same time reduce the reproductive potential of the ...
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Mating partners often have conflicting interests when copulating. One of the major agents affecting female mating partners is seminal fluid, transferred along with sperm. The role of seminal fluid proteins (SFPs) in reproductive success is well studied in separate-sexed animals but is much less so in simultaneous hermaphrodites. The latter potentially have a unique target to exploit for the spe...
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Evolutionary transitions between hermaphroditic and dioecious reproductive states are found in many groups of animals. To understand such transitions, it is important to characterize diverse modes of sex determination utilized by metazoans. Currently, little is known about how simultaneous hermaphrodites specify and maintain male and female organs in a single individual. Here we show that a sex...
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Sexually selected traits are predicted to show condition dependence by capturing the genetic quality of its bearer. In separate-sexed organisms, this will ultimately translate into condition dependence of reproductive success of the sex that experiences sexual selection, which is typically the male. Such condition dependence of reproductive success is predicted to be higher in males than female...
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Seminal fluid is an important part of the ejaculate of internally fertilizing animals. This fluid contains substances that nourish and activate sperm for successful fertilization. Additionally, it contains components that influence female physiology to further enhance fertilization success of the sperm donor, possibly beyond the recipient's optimum. Although evidence for such substances abounds...
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ژورنال
عنوان ژورنال: Evolution
سال: 1992
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1992.tb01162.x