Results 31 to 40 of about 139,280 (294)

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

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

The C. elegans LIM homeobox gene lin-11 specifies multiple cell fates during vulval development [PDF]

open access: yes, 2003
LIM homeobox family members regulate a variety of cell fate choices during animal development. In C. elegans, mutations in the LIM homeobox gene lin-11 have previously been shown to alter the cell division pattern of a subset of the 2° lineage vulval ...
Gupta, Bhagwati P.   +2 more
core   +1 more source

CROSSING RELATIONSHIPS AMONG ANCIENT AND EXPERIMENTAL SUNFLOWER HYBRID LINEAGES [PDF]

open access: yesEvolution, 2000
Reproductive barrier formation between newly derived hybrid taxa and their parental species represents a major evolutionary hurdle. Here, I examine the development of a sterility barrier during hybrid speciation by examining the fertility of progeny from all combinations of crosses involving three experimentally synthesized sunflower hybrid lineages ...
openaire   +2 more sources

The Role of Retrotransposons in Gene Family Expansions: Insights from the Mouse \u3ci\u3eAbp\u3c/i\u3e Gene Family [PDF]

open access: yes, 2013
Background: Retrotransposons have been suggested to provide a substrate for non-allelic homologous recombination (NAHR) and thereby promote gene family expansion. Their precise role, however, is controversial.
Janoušek, Václav   +2 more
core   +2 more sources

Introgressive Hybridization between Anciently Diverged Lineages of Silene (Caryophyllaceae)

open access: yesPLoS ONE, 2013
Hybridization has played a major role during the evolution of angiosperms, mediating both gene flow between already distinct species and the formation of new species. Newly formed hybrids between distantly related taxa are often sterile. For this reason, interspecific crosses resulting in fertile hybrids have rarely been described to take place after ...
Anna Petri   +2 more
openaire   +4 more sources

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

open access: yesThe American Naturalist, 2017
AbstractFactors 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 of lineages. The lack of methods in a
Folk, R.A.   +4 more
openaire   +2 more sources

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

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