Weak male-driven molecular evolution in rodents.
نویسندگان
چکیده
منابع مشابه
Male-driven evolution.
The strength of male-driven evolution - that is, the magnitude of the sex ratio of mutation rate - has been a controversial issue, particularly in primates. While earlier studies estimated the male-to-female ratio (alpha) of mutation rate to be about 4-6 in higher primates, two recent studies claimed that alpha is only about 2 in humans. However, a more recent comparison of mutation rates betwe...
متن کاملMeiotic recombination counteracts male-biased mutation (male-driven evolution).
Meiotic recombination is believed to produce greater genetic variation despite the fact that deoxyribonucleic acid (DNA)-replication errors are a major source of mutations. In some vertebrates, mutation rates are higher in males than in females, which developed the theory of male-driven evolution (male-biased mutation). However, there is little molecular evidence regarding the relationships bet...
متن کاملSexual behavior in male rodents.
The hormonal factors and neural circuitry that control copulation are similar across rodent species, although there are differences in specific behavior patterns. Both estradiol (E) and dihydrotestosterone (DHT) contribute to the activation of mating, although E is more important for copulation and DHT for genital reflexes. Hormonal activation of the medial preoptic area (MPOA) is most effectiv...
متن کاملLETTERS Evidence for Male-Driven Evolution in Drosophila
In several vertebrate taxa studied to date, mutation rates are higher in males than females (male-driven evolution). The male-to-female mutation rate (a) can be estimated by contrasting DNA divergence data at X-linked, Y-linked, and autosomal loci. Previous studies in Drosophila, comparing X-linked and autosomal divergence, have found no evidence for male-driven evolution in this genus. Here, I...
متن کاملEvolution of isochores in rodents.
The most deviant isochore pattern within mammals was found in rat and mouse; most other mammals possess a different kind of isochore organization called the "general pattern." However, isochore patterns remain largely unknown in rodents other than mouse and rat. To investigate the taxonomic distribution of isochore patterns in rodents, we sequenced the nuclear gene LCAT (lecithin:cholesterol ac...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1994
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.91.2.827