Results 11 to 20 of about 42,013 (168)
Genetic tests for ecological and allopatric speciation in anoles on an island archipelago. [PDF]
From Darwin's study of the Galapagos and Wallace's study of Indonesia, islands have played an important role in evolutionary investigations, and radiations within archipelagos are readily interpreted as supporting the conventional view of allopatric ...
Roger S Thorpe +2 more
doaj +1 more source
Concepts and definitions of species have been debated by generations of biologists and remain controversial. Microbes pose a particular challenge because of their genetic diversity, asexual reproduction, and often promiscuous horizontal gene transfer ...
B Jesse Shapiro +2 more
doaj +1 more source
Background Divergent genetic responses to the same environmental pressures may lead sympatric ecological speciation possible. Such speciation process possibly explains rapid sympatric speciation of island species.
Bing-Hong Huang +5 more
doaj +1 more source
Background Speciation often occurs in complex or uncertain temporal and spatial contexts. Processes such as reinforcement, allopatric divergence, and assortative mating can proceed at different rates and with different strengths as populations diverge ...
Bunje Paul ME +2 more
doaj +1 more source
Genetics of ecological divergence during speciation [PDF]
Ecological differences often evolve early in speciation as divergent natural selection drives adaptation to distinct ecological niches, leading ultimately to reproductive isolation. Although this process is a major generator of biodiversity, its genetic basis is still poorly understood.
Arnegard, M. +12 more
openaire +3 more sources
GENETICS, SPECIATION AND THE FOUNDER PRINCIPLE [PDF]
W. Anderson, K. Kaneshiro & L. V. Giddings: H. L. Carson: Interviews toward an intellectual history W. B. Provine: Founder effects and genetic revolutions in microevolution and speciation: an historical perspective G. D. Carr, R. H. Robichaux, M. S. Witter & D. W.
L V, Giddings, K Y, Kaneshiro
openaire +4 more sources
The American Genetics Association (AGA) is a nonprofit membership society whose mission is to promote the study of genetics. To meet this obligation, the AGA publishes the Journal of Heredity and promotes research in all fields of genetics. The latter is accomplished through an annual meeting and symposium, as well as by sponsorship of special events ...
openaire +1 more source
Gene flow mediates the role of sex chromosome meiotic drive during complex speciation
During speciation, sex chromosomes often accumulate interspecific genetic incompatibilities faster than the rest of the genome. The drive theory posits that sex chromosomes are susceptible to recurrent bouts of meiotic drive and suppression, causing the ...
Colin D Meiklejohn +10 more
doaj +1 more source
Phedimus takesimensis (Ulleungdo flat-leaved stonecrop) is endemic to Ulleung and Dokdo Islands off the east coast of the Korean Peninsula. It was suggested that P. takesimensis originated via anagenetic speciation from the continental progenitor species
Hee-Seung Seo +2 more
doaj +1 more source
In search of the Goldilocks zone for hybrid speciation. [PDF]
Hybridization has recently gained considerable interest both as a unique opportunity for observing speciation mechanisms and as a potential engine for speciation. The latter remains a controversial topic.
Alexandre Blanckaert, Claudia Bank
doaj +1 more source

