Genetic architecture of body size in mammals
نویسندگان
چکیده
منابع مشابه
Body Size and Risk of Extinction in Australian Mammals
The link between body size and risk of extinction has been the focus of much recent attention. For Australian terrestrial mammals this link is of particular interest because it is widely believed that species in the intermediate size range of 35–5500 g (the “critical weight range”) have been the most prone to recent extinction. But the relationship between body size and extinction risk in Austr...
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I n Tempo and Mode of Evolution, an early classic of the evolutionary synthesis, George Simpson argued that, although many aspects of evolution can be studied in living populations, rates and patterns of evolutionary change are best documented with the fossil record (1). The fact that fossils can be placed into phylogenetic and stratigraphic frameworks makes it possible to calculate rates of ch...
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BACKGROUND Testes size is used as a proxy of male intrasexual competition, with larger testes indicative of greater competition. It has been shown that in some taxa, social mating systems reflect variance in testes size, but results are not consistent, and instead it has been suggested that genetic patterns of mating may reflect testes size. However, there are different measures of genetic patt...
متن کاملBrain size scaling and body composition in mammals.
Brain size scales with body size across large groups of animals, but exactly why this should be the case has not been resolved. It is generally assumed that body size is a general proxy for some more important or specific underlying variable, such as metabolic resources available, surface area of the body, or total muscle mass (which is more extensively innervated than is, e.g., adipose tissue)...
متن کاملThe evolution of maximum body size of terrestrial mammals.
The extinction of dinosaurs at the Cretaceous/Paleogene (K/Pg) boundary was the seminal event that opened the door for the subsequent diversification of terrestrial mammals. Our compilation of maximum body size at the ordinal level by sub-epoch shows a near-exponential increase after the K/Pg. On each continent, the maximum size of mammals leveled off after 40 million years ago and thereafter r...
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ژورنال
عنوان ژورنال: Genome Biology
سال: 2012
ISSN: 1465-6906
DOI: 10.1186/gb4016