Results 61 to 70 of about 4,728 (220)

Genetic variability in Astyanax altiparanae Garutti & Britski, 2000 (Teleostei, Characidae) from the Upper Paraná River basin, Brazil

Genetics and Molecular Biology, 2005
Allozyme data was used to assess the genetic diversity Astyanax altiparanae populations from the floodplain of the Upper Paraná River (PR). Specimens were collected in the southern Brazilian state of Paraná from PR in Porto Rico municipality and Ribeirão
Maria Dolores Peres, Marcio dos Santos Vasconcelos, Erasmo Renesto   +2 more
doaj   +1 more source

Contrasting population genetic structures of congeneric coastal flounders associated with different early life histories

Journal of Fish Biology, Volume 109, Issue 2, Page 1141-1159, August 2026.
Abstract Marine fish species are likely to exhibit little genetic differentiation among populations due to their high dispersal potential during early life stages and migratory nature. However, recent studies have increasingly reported intraspecific genetic differentiation resulting from species‐specific ecological traits, environmental factors, and ...
Yuki Yamamoto, Hiroyuki Togashi, Yutaka Kurita, Satoshi Katayama, Yoshiaki Akaba, Mitsuhiro Ishii, Tatsuya Isshiki, Minoru Ikeda   +7 more
wiley   +1 more source

Temperature-dependent Kinetic Variation among Phosphoglucose Isomerase Allozymes from the Wing-polymorphic Water Strider, \u3ci\u3eLimnoporus canaliculatusl\u3c/i\u3e [PDF]

, 1987
Phosphoglucose isomerase (PGI) allozymes were isolated from the wing-polymorphic water strider, Lirnnoporus canaliculatus, and were characterized biochemically with respect to temperature-dependent kinetic and thermostability properties.
Zera, Anthony J.
core  

Population genetics of the moss Plagiothecium undulatum (Hedw.) Schimp:I. Inheritance of allozymes

, 1991
Twenty-one allozyme loci were assayed in a subpopulation of the dioecious moss Plagiothecium undulatum. Six loci were polymorphic and could be used to demonstrate the different expression of allozymes at the haploid gametophytic and diploid sporophytic ...
van Delden , W., van Zanten , B.O., Wilke van Delden, Hofman, A., Ben O van Zanten, Annelies Hofman   +5 more
core   +1 more source

Allozyme variation in Czech populations of the invasive spiny-cheek crayfish Orconectes limosus (Cambaridae) [PDF]

Knowledge and Management of Aquatic Ecosystems, 2009
The North American spiny-cheek crayfish, Orconectes limosus, was most probably introduced into Europe only once, in 1890. The size of the founding population was just 90 individuals.
L. Filipová, E. Kozubíková, A. Petrusek   +2 more
doaj  

Conservation genomics of Pecos pupfish (Cyprinodon pecosensis)

Journal of Fish Biology, Volume 109, Issue 2, Page 963-977, August 2026.
Abstract The Pecos pupfish, Cyprinodon pecosensis, is an imperilled freshwater fish found in arid regions of Texas and New Mexico (USA). The species faces multiple challenges to persistence including reductions in suitable habitat, water shortages, as well as hybridization and competition with an introduced congener (sheepshead minnow, C.
Elizabeth P. Dolan, Andrew T. Fields, Megan G. Bean, Robyn R. Doege, Joanna L. Hatt, Kevin W. Conway, David S. Portnoy   +6 more
wiley   +1 more source

Range‐Wide Genetic Population Structure and Environmental Adaptation in the Eastern Oyster (Crassostrea virginica) Provides Insight for Aquaculture

Molecular Ecology, Volume 35, Issue 15, August 2026.
ABSTRACT Selective breeding in aquaculture is necessary to establish food security and meet demand for sustainably produced protein. An informed selective breeding program requires understanding how population structure, environmental adaptation, and human activities shape natural genetic variation in wild conspecifics.
Madeline G. Eppley, Kiran Bajaj, Camille Rumberger, Elisabeth Leung, Nicole Mongillo, Jessica Small, Katie E. Lotterhos   +6 more
wiley   +1 more source

Human catechol O-methyltransferase genetic variation:Gene resequencing and functional characterization of variant allozymes

, 2004
Catechol O-methyltransferase (COMT) plays an Important role in the metabolism of catecholamlnes, catecholestrogens and catechol drugs. A common COMT G472A genetic polymorphism (Val108/158Met) that was identified previously is associated with decreased ...
Eckloff, B. W., Shield, A. J.; id_orcid, Thomae, B. A., Weinshilboum, R. M., Wieben, E. D.   +4 more
core   +1 more source

Ibero‐Balearic plant disjunctions: genomic support for rapid and recurrent long‐distance colonizations of the endangered Diplotaxis ibicensis (Brassicaceae) despite no dispersal syndromes

Plant Biology, Volume 28, Issue 5, Page 1560-1572, August 2026.
Genotyping‐by‐sequencing data reveal six well‐defined clades in the endangered Diplotaxis ibicensis, endemic to the western Mediterranean Basin and indicate rapid and recurrent long‐distance colonisations across the Balearic Islands and the eastern Iberian coast despite the absence of dispersal syndromes.
L. Bezares, M. Fernández‐Mazuecos, E. Cano, J. Borràs, J. Cerca, J. Cursach, P. Vargas   +6 more
wiley   +1 more source

Clinal variation and selection on MDH allozymes in honeybees in Chile

, 2021
Evidence of clinal variation and selection on Mdh-1 locus was observed in 27 samples from 22 sites in a 2800 km north-south transect across Chile. We found a negative correlation among F allele normalized frequency and mean temperature, and minimum ...
Soares, AEE, Del Lama, MA, Souza, RO, Duran, XAA   +3 more
core