منابع مشابه
Placental Evolution in Therian Mammals
One of the great transformations in the history of vertebrates involves the origin and early diversification of the mammals. Mammals are distinguished from other vertebrates by almost countless aspects of their anatomy, physiology, behavior, reproduction, and life history. Many of these features appear to have arisen as an integrated complex during the early evolution of mammals. An exceedingly...
متن کاملThe evolution of placental mammals.
Based on morphological, virological, biochemical and molecular biological data, it is proposed that the presence of endogenous retrovirus particles in the placental cytotrophoblasts of many mammals is indicative of some beneficial action provided by the virus in relation to cell fusion, syncytiotrophoblast formation and the creation of the placenta. Further, it is hypothesised that the germ lin...
متن کاملEvolution of climate niches in European mammals?
Our ability to predict consequences of climate change is severely impaired by the lack of knowledge on the ability of species to adapt to changing environmental conditions. We used distribution data for 140 mammal species in Europe, together with data on climate, land cover and topography, to derive a statistical description of their realized climate niche. We then compared climate niche overla...
متن کاملMolecular Evolution of PTEN Pseudogenes in Mammals
Phosphatase and tensin homolog (PTEN) is a tumor-suppressor gene. PTEN pseudogene (PTENp) acts as an endogenous RNA, which regulates its parental gene by competitively binding to the 3' UTR of PTEN gene in the human. Despite the importance of this pseudogene, little is known about the molecular evolution of PTENp in mammals. In this study, we identified 37 pseudogenes from 65 mammalian genomes....
متن کاملMolecular Evolution: Gene Convergence in Echolocating Mammals
The motor protein prestin confers sensitive and selective hearing in mammals. Remarkably, prestin amino-acid sequences of echolocating dolphins have converged to resemble those of distantly related echolocating bats.
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2008
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.011601