Results 21 to 30 of about 128,214 (287)

The Genetics of Speciation by Reinforcement

PLoS Biology, 2004
Reinforcement occurs when natural selection strengthens behavioral discrimination to prevent costly interspecies matings, such as when matings produce sterile hybrids. This evolutionary process can complete speciation, thereby providing a direct link between Darwin's theory of natural selection and the origin of new species.
Ortiz-Barrientos, Daniel, Counterman, Brian A., Noor, Mohamed A. F.   +2 more
openaire   +6 more sources

Sampling genetic diversity in the sympatrically and allopatrically speciating Midas cichlid species complex over a 16 year time series

BMC Evolutionary Biology, 2007
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, Barluenga Marta, Meyer Axel   +2 more
doaj   +1 more source

Crater lake cichlids individually specialize along the benthic-limnetic axis [PDF]

, 2014
A common pattern of adaptive diversification in freshwater fishes is the repeated evolution of elongated open water (limnetic) species and high-bodied shore (benthic) species from generalist ancestors.
Barlow G. W., Dryden I. L., Fryer G., Hammer Ø., Hudson A. G., Keenleyside M. H. A., McCrary J. K., McKaye K. R., McPhail J. D., Mousseau T. A., Pritchard J. K., Recknagel H., Robinson B. W., Schluter D., Stauffer J. R.   +14 more
core   +2 more sources

The existence of species rests on a metastable equilibrium between inbreeding and outbreeding [PDF]

, 2011
Background: Speciation corresponds to the progressive establishment of reproductive barriers between groups of individuals derived from an ancestral stock.
Etienne Joly
core   +2 more sources

Levels of genetic polymorphism: marker loci versus quantitative traits [PDF]

, 1998
Species are the units used to measure ecological diversity and alleles are the units of genetic diversity. Genetic variation within and among species has been documented most extensively using allozyme electrophoresis.
Butlin R. K., Butlin R. K., Meyer J., Muller H. J., Neems R. M., Nei M., Ward R. D., Watt W. B., Watt W. B., Wu C-I.   +9 more
core   +3 more sources

Fuzzy species limits in Mediterranean gorgonians (Cnidaria, Octocorallia): inferences on speciation processes [PDF]

, 2017
The study of the interplay between speciation and hybridization is of primary importance in evolutionary biology. Octocorals are ecologically important species whose shallow phylogenetic relationships often remain to be studied. In the Mediterranean Sea,
Anne Haguenauer, Aurelle, Baker, Beaumont, Bierne, Bierne, Boulay, Brucker, Calderón, Carpine, Concepcion, Costantini, Csilléry, Darriba, Darwin, Didier Aurelle, Excoffier, Faure, Feder, Ferrier-Pagès, Flot, Garrabou, Gori, Gori, Guindon, Hall, Hey, Hey, Hichem M. Kara, Hoegh-Guldberg, Huson, Isabelle D. Pivotto, Isomura, Knowles, Lamya Chaoui, Ledoux, Librado, Marine Malfant, Marti-Puig, Mauatassem B. Masmoudi, Mcfadden, McFadden, McFadden, Márcio A.G. Coelho, Müller, Nei, Nosil, Nur E. Topçu, Pante, Pante, Pey, Pivotto, Prada, Prada, Pratlong, Pratlong, Rieseberg, Rita Castilho, Ronquist, Roux, Roux, Roy, Sanchez, Shearer, Simmons, Sini, Stephens, Stephens, Thomas, Thompson, Tine, Venn, Vollmer, Wegmann, Wirshing   +74 more
core   +3 more sources

Genetics of Speciation [PDF]

Journal of Heredity, 2007
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

eLife, 2018
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, Emily L Landeen, Kathleen E Gordon, Thomas Rzatkiewicz, Sarah B Kingan, Anthony J Geneva, Jeffrey P Vedanayagam, Christina A Muirhead, Daniel Garrigan, David L Stern, Daven C Presgraves   +10 more
doaj   +1 more source

Does hybridization between divergent progenitors drive whole-genome duplication? [PDF]

, 2009
This is the peer reviewed version of the following article: BUGGS, R. J. A., SOLTIS, P. S. and SOLTIS, D. E. (2009), Does hybridization between divergent progenitors drive whole-genome duplication?.
Buggs, RJA, Soltis, DE, Soltis, PS
core   +1 more source

Chloroplast DNA insights into the phylogenetic position and anagenetic speciation of Phedimus takesimensis (Crassulaceae) on Ulleung and Dokdo Islands, Korea.

PLoS ONE, 2020
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, Seon-Hee Kim, Seung-Chul Kim   +2 more
doaj   +1 more source