Results 21 to 30 of about 47,047 (252)

Geographic Range Dynamics Drove Ancient Hybridization in a Lineage of Angiosperms [PDF]

open access: yesThe American Naturalist, 2017
Abstract Factors explaining global distribution patterns have been central to biology since the 19th century, yet failure to combine dispersal-based biogeography with shifts in habitat suitability remains a present-day setback in understanding geographic distributions present and past, and time-extended trajectories ...
Folk, R.A.   +4 more
openaire   +2 more sources

Host Adaptation Through Hybridization: Genome Analysis of Triticale Powdery Mildew Reveals Unique Combination of Lineage-Specific Effectors

open access: yesMolecular Plant-Microbe Interactions, 2021
The emergence of new fungal pathogens through hybridization represents a serious challenge for agriculture. Hybridization between the wheat mildew (Blumeria graminis f. sp. tritici) and rye mildew (B. graminis f. sp.
Marion C. Müller   +4 more
doaj   +1 more source

Karyotypes of Danubian lineage brown trout and their hybrids

open access: yesCaryologia, 2019
Cytogenetic analysis of brown trout, Salmo trutta, have been described for different populations and morphs; however, cytogenetic analysis of interspecific brown trout hybrids is unknown. Cultured kidney cells from four brown trout subspecies (Salmo trutta abanticus, S.t. caspius, S.t. fario and S.t. labrax) and their reciprocal hybrids were karyotyped
Alemdag, Melike   +3 more
openaire   +3 more sources

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

Functional divergence caused by ancient positive selection of a Drosophila hybrid incompatibility locus.

open access: yesPLoS Biology, 2004
Interspecific hybrid lethality and sterility are a consequence of divergent evolution between species and serve to maintain the discrete identities of species.
Daniel A Barbash   +2 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   +4 more sources

Genomic Analysis Confirms Population Structure and Identifies Inter-Lineage Hybrids in Aegilops tauschii

open access: yesFrontiers in Plant Science, 2019
Aegilops tauschii, the D-genome donor of bread wheat, Triticum aestivum, is a storehouse of genetic diversity, and an important resource for future wheat improvement. Genomic and population analysis of 549 Ae.
Narinder Singh   +8 more
doaj   +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

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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