Results 31 to 40 of about 49,201 (297)

Population Genetics of a Polyploid: Is There Hybridization Between Lineages of Hyla versicolor? [PDF]

open access: yesJournal of Heredity, 2002
Several studies have demonstrated that polyploid species can form recurrently from their progenitors, but few studies have evaluated gene flow between the resultant polyploid lineages. Here we examine the possibility of hybridization between lineages of the tetraploid common gray treefrog (Hyla versicolor).
N R, Espinoza, M A F, Noor
openaire   +2 more sources

Isolation and identification of a novel rabies virus lineage in China with natural recombinant nucleoprotein gene. [PDF]

open access: yesPLoS ONE, 2012
Rabies virus (RABV) causes severe neurological disease and death. As an important mechanism for generating genetic diversity in viruses, homologous recombination can lead to the emergence of novel virus strains with increased virulence and changed host ...
Cheng-Qiang He   +6 more
doaj   +1 more source

Hybridization and the origin of new yeast lineages

open access: yesFEMS Yeast Research, 2020
ABSTRACTHybrids originate from the mating of two diverged organisms, resulting in novel lineages that have chimeric genomes. Hybrids may exhibit unique phenotypic traits that are not necessarily intermediate between those present in the progenitors. These unique traits may enable them to thrive in new environments.
openaire   +5 more sources

Sex, subdivision, and domestic dispersal of Trypanosoma cruzi lineage I in southern Ecuador. [PDF]

open access: yes, 2010
BACKGROUND: Molecular epidemiology at the community level has an important guiding role in zoonotic disease control programmes where genetic markers are suitably variable to unravel the dynamics of local transmission. We evaluated the molecular diversity
Mario J Grijalva   +23 more
core   +1 more source

Cis-by-Trans regulatory divergence causes the asymmetric lethal effects of an ancestral hybrid incompatibility gene. [PDF]

open access: yesPLoS Genetics, 2012
The Dobzhansky and Muller (D-M) model explains the evolution of hybrid incompatibility (HI) through the interaction between lineage-specific derived alleles at two or more loci. In agreement with the expectation that HI results from functional divergence,
Shamoni Maheshwari, Daniel A Barbash
doaj   +1 more source

Natural hybridization between divergent lineages in a selfing hermaphroditic fish [PDF]

open access: yesBiology Letters, 2018
By definition, mating between individuals is infrequent in highly selfing organisms, and so too, therefore, hybridization should be rare between genetically divergent lineages in predominantly self-fertilizing species. Notwithstanding these expectations, here we report a remarkable case of natural hybridization between highly diverged phylogeographic ...
Andrey Tatarenkov   +4 more
openaire   +4 more sources

A six nuclear gene phylogeny of Citrus (Rutaceae) taking into account hybridization and lineage sorting. [PDF]

open access: yesPLoS ONE, 2013
BACKGROUND: Genus Citrus (Rutaceae) comprises many important cultivated species that generally hybridize easily. Phylogenetic study of a group showing extensive hybridization is challenging.
Chandrika Ramadugu   +5 more
doaj   +1 more source

The genomic mosaicism of hybrid speciation [PDF]

open access: yes, 2017
Hybridization is widespread in nature and, in some instances, can result in the formation of a new hybrid species. We investigate the genetic foundation of this poorly understood process through whole-genome analysis of the hybrid Italian sparrow and its
Trier, Cassandra N.   +25 more
core   +1 more source

Automated Deep Lineage Tree Analysis Using a Bayesian Single Cell Tracking Approach

open access: yesFrontiers in Computer Science, 2021
Single-cell methods are beginning to reveal the intrinsic heterogeneity in cell populations, arising from the interplay of deterministic and stochastic processes.
Kristina Ulicna   +10 more
doaj   +1 more source

Cryptic and extensive hybridization between ancient lineages of American crows [PDF]

open access: yesMolecular Ecology, 2018
Abstract Most species and therefore most hybrid zones have historically been defined using phenotypic characters. However, both speciation and hybridization can occur with negligible morphological differentiation.
David L. Slager   +6 more
openaire   +2 more sources

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