Poecilia Mexicana Is the Recent Female Parent of the Unisexual Fish P. Formosa.
نویسندگان
چکیده
Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available at http://www.jstor.org/page/info/about/policies/terms.jsp. JSTOR's Terms and Conditions of Use provides, in part, that unless you have obtained prior permission, you may not download an entire issue of a journal or multiple copies of articles, and you may use content in the JSTOR archive only for your personal, non-commercial use.
منابع مشابه
Male permissiveness in a unisexual–bisexual mating complex promotes maintenance of a vertebrate unisexual sperm-dependent species
Unisexual–bisexual mating complexes are found when an all female sperm-dependent (gynogenetic or hybridogenetic) species relies on heterospecific males for reproduction. Mistakes in species recognition or discrimination on the part of the males are fundamental for the persistence of unisexual–bisexual mating systems, but should be selected against because mating with heterospecific females does...
متن کاملRepeatability of female preferences in a unisexual–bisexual mating system
Background: A gynogenetic species is a hybrid species in which females must mate with males of their parental species to initiate egg development, but inheritance is strictly maternal. Question: Is the mating preference of an all-female, gynogenetic fish and its parental species repeatable? Organisms: The Amazon molly, Poecilia formosa, is a livebearing gynogenetic fish of hybrid origin. Its pa...
متن کاملPopulation genomics reveals a possible history of backcrossing and recombination in the gynogenetic fish Poecilia formosa.
Unisexual sperm-dependent vertebrates are of hybrid origins, rare, and predicted to be short-lived as a result of several challenges arising from their mode of reproduction. In particular, because of a lack of recombination, clonal species are predicted to have a low potential to respond to natural selection. However, many unisexual sperm-dependent species persist, and assessing the genetic div...
متن کاملAllele-specific expression at the androgen receptor alpha gene in a hybrid unisexual fish, the Amazon molly (Poecilia formosa)
The all-female Amazon molly (Poecilia formosa) is the result of a hybridization of the Atlantic molly (P. mexicana) and the sailfin molly (P. latipinna) approximately 120,000 years ago. As a gynogenetic species, P. formosa needs to copulate with heterospecific males including males from one of its bisexual ancestral species. However, the sperm only triggers embryogenesis of the diploid eggs. Th...
متن کاملMonophyletic origin of multiple clonal lineages in an asexual fish (Poecilia formosa).
Despite the advantage of avoiding the costs of sexual reproduction, asexual vertebrates are very rare and often considered evolutionarily disadvantaged when compared to sexual species. Asexual species, however, may have advantages when colonizing (new) habitats or competing with sexual counterparts. They are also evolutionary older than expected, leaving the question whether asexual vertebrates...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Evolution; international journal of organic evolution
دوره 45 6 شماره
صفحات -
تاریخ انتشار 1991