Results 61 to 70 of about 63,195 (262)

Phylogeography of Sardinian cave salamanders (genus Hydromantes) is mainly determined by geomorphology. [PDF]

PLoS ONE, 2012
Detecting the factors that determine the interruption of gene flow between populations is key to understanding how speciation occurs. In this context, caves are an excellent system for studying processes of colonization, differentiation and speciation ...
Ylenia Chiari, Arie van der Meijden, Mauro Mucedda, João M Lourenço, Axel Hochkirch, Michael Veith   +5 more
doaj   +1 more source

High genomic differentiation and limited gene flow indicate recent cryptic speciation within the genus Laspinema (cyanobacteria)

Frontiers in Microbiology, 2022
The sympatric occurrence of closely related lineages displaying conserved morphological and ecological traits is often characteristic of free-living microbes. Gene flow, recombination, selection, and mutations govern the genetic variability between these
Aleksandar Stanojković, Svatopluk Skoupý, Pavel Škaloud, Petr Dvořák   +3 more
doaj   +1 more source

Complex genome evolution in Anopheles coluzzii associated with increased insecticide usage in Mali. [PDF]

, 2015
In certain cases, a species may have access to important genetic variation present in a related species via adaptive introgression. These novel alleles may interact with their new genetic background, resulting in unexpected phenotypes.
Brisco, Katherine, Collier, Travis C, Cornel, Anthony J, Fofana, Abdrahamane, Lanzaro, Gregory C, Lee, Yoosook, Main, Bradley J, Norris, Laura C   +7 more
core   +1 more source

SPECIATION DESPITE GENE FLOW WHEN DEVELOPMENTAL PATHWAYS EVOLVE [PDF]

Evolution, 2002
Evolutionary biologists assume that species formation requires a drastic reduction in gene exchange between populations, but the rate sufficient to prevent speciation is unknown. To study speciation, we use a new class of population genetic models that incorporate simple developmental genetic rules, likely present in all organisms, to construct the ...
Adam H, Porter, Norman A, Johnson
openaire   +2 more sources

The Genomic Landscape of Divergence Across the Speciation Continuum in Island-Colonising Silvereyes (Zosterops lateralis)

G3: Genes, Genomes, Genetics, 2020
Inferring the evolutionary dynamics at play during the process of speciation by analyzing the genomic landscape of divergence is a major pursuit in population genomics.
Ashley T. Sendell-Price, Kristen C. Ruegg, Eric C. Anderson, Claudio S. Quilodrán, Benjamin M. Van Doren, Vinh L. Underwood, Tim Coulson, Sonya M. Clegg   +7 more
doaj   +1 more source

Divergent selection drives genetic differentiation in an R2R3-MYB transcription factor that contributes to incipient speciation in Mimulus aurantiacus. [PDF]

PLoS Genetics, 2013
Identifying the molecular genetic basis of traits contributing to speciation is of crucial importance for understanding the ecological and evolutionary mechanisms that generate biodiversity. Despite several examples describing putative "speciation genes,"
Matthew A Streisfeld, Wambui N Young, James M Sobel   +2 more
doaj   +1 more source

Genomic and phenotypic analysis of Vavilov's historic landraces reveals the impact of environment and genomic islands of agronomic traits. [PDF]

, 2017
The Vavilov Institute of Plant Genetic Resources (VIR), in St. Petersburg, Russia, houses a unique genebank, with historical collections of landraces.
Bulyntsev, Sergey, Carrasquilla-Garcia, Noelia, Chang, Peter L, Cook, Douglas R, Negash, Kassaye, Noujdina, Nina, Nuzhdin, Sergey V, Plekhanova, Elena, Samsonova, Maria G, Vishnyakova, Margarita A, Wettberg, Eric von   +10 more
core   +3 more sources

Ecological speciation in sympatric palms: 1. Gene expression, selection and pleiotropy [PDF]

, 2016
Ecological speciation requires divergent selection, reproductive isolation and a genetic mechanism to link the two. We examined the role of gene expression and coding sequence evolution in this process using two species of Howea palms that have diverged ...
Baker, W.J., Butlin, R.K., Devaux, C., Dunning, L.T., Hipperson, H., Hutton, I., Igea, J., Papadopulos, A.S.T., Quan, X., Savolainen, V., Smadja, C.M., Turnbull, C.G.N.   +11 more
core   +3 more sources

Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution

Advanced Science, EarlyView.
Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley   +1 more source

Deciphering the Evolution Pattern of Structural Variations Overlapped With Repetitive Sequence During Cattle Evolution

Advanced Science, EarlyView.
The authors complement bovine pan‐SV with massive novel structural variations (SVs) identified through long‐read sequencing of 83 globally distributed cattle breeds. Repetitive sequence‐mediated SVs (rep‐SV) exhibit distinct dynamic patterns throughout cattle sub‐speciation and/or domestication processes, including uneven distribution between chr‐X and
Zhifan Guo, Jinxiu Li, Adeniyi C. Adeola, Xueyan Jiang, Juntao Ma, Jian Xiao, Dexiang Hu, Kaixing Qu, Haihong Wu, Junren Chen, Zhanxing He, Tingting Yin, Ali Esmailizadeh, Jing Luo, Olivier Hanotte, Ya‐Ping Zhang, Yan Li   +16 more
wiley   +1 more source