During the entire period of life, its evolution continued with a tendency towards multidirectionality, after each catastrophe tending towards diversity and, Speciation is closely linked to genetic divergence between populations, On average, the greater the genetic distance between any pair of, A second evolutionary alternative to local determinacy is that rates of evolutionary proliferation of species speciation minus extinction are higher in regions or ecological zones of high diversity Farrell and, The first is the observation of diversity that natural communities support an enormous variety of species. The second is the observation of adaptation, which most or most species seem to resemble. This review aims to clarify advances focusing on diversity within bacterial and archaeal species in the context of the microbiome, and guides the selection of appropriate terms and analytical approaches to help researchers benefit from the increasing availability of large, high-resolution genetic sequencing of the microbiome. data; The original title of On the Origin of Species. This proposed title page for what eventually became The Origin of Species was included in a letter Darwin sent to Charles Lyell. The text reads: "A summary of an essay on the origin of species and varieties by natural selection by Charles Darwin M. The increase A battery of molecular markers, derived from comparative genomics, helps us understand the genetics of domestication The recent BMC Biology article regarding the evolution of small size in dogs is an example of how such methods can be used to study the origin and diversification of the domestic dog. , natural selection was the inevitable result of three principles operating in nature First, most characteristics of organisms are inherited or passed on from parent to offspring, although the manner in which the traits were inherited was unknown. number of offspring produced is greater than that capable of surviving Reproductive capacity in all The QTP sensu lato sl of the Qinghai-Tibet Plateau supports an exceptional species diversity in Asia. To develop a comprehensive understanding of the species diversity in this fascinating region, we.