Filters: Tags: Allozymes (X)29 results (76ms)
Population genetics of the fissiparous holothurians Stichopus chloronotus and Holothuria atra (Aspidochirotida): A comparison between the Torres Strait and La Reunion.
Allozymes as Genetic Identification Markers of Sargassum spp. (Phaeophyta) from the Great Barrier Reef, Australia
Implications and applications of molecular genetics to fisheries management: The case of the Perlemoen, Haliotis midae.
We collected blood for allozyme analysis from Northern Goshawks (Accipiter gentilis atricapillus) on the Kaibab Plateau in northern Arizona during 1991-1993 to quantify frequency of extra-pair fertilizations (EPFs). Northern Goshawks are socially monogamous, territorial, noncolonial, synchronous breeders, and their nests are relatively far apart, characteristics that suggest that EPFs should be low. We sampled 103 adults and 122 nestlings from 64 nests. Both putative parents were sampled at 39 nests, but we were able to capture and sample only one putative parent at 25 other nests (84%, female only: 16%, male only). Of the 39 complete families sampled, only 1 of 77 (1.3%) nestlings (or in 1 of 39 clutches, 2.6%)...
Cladogenetic events in two relict species of Stenasellidae (Crustacea, Isopoda) from Sardinia Islands (Tyrrhenian Sea): a biochemical approach
Genetic differentiation among populations of a broadcast spawning soft coral, Sinularia flexibilis, on the Great Barrier Reef.
Larval settlement rates and gene flow of broadcast-spawning (Acropora tenuis) and planula-brooding (Stylophora pistillata) corals
Bromus tectorum (Poaceae) in midcontinental United States: Population genetic analysis of an ongoing invasion
Biological invasions can be substantially influenced by the genetic sampling associated with a species? introduction. As a result, we assessed the genetic and evolutionary consequences of the entry and spread of the invasive grass Bromus tectorum (cheatgrass) across the United States midcontinent through an analysis of 54 populations, using enzyme electrophoresis. On average, these populations display 1.04 alleles per locus (A), 4.1% percent polymorphic loci per population (%P) and an expected mean heterozygosity (Hexp) value of 0.009. Heterozygotes, which have been rarely reported for B. tectorum in North America, occur in three populations in the midcontinent and are likely novel multilocus genotypes that arose...
Hybridization between the toads Bufo microscaphus and Bufo woodhousii in Arizona: variation in release calls and allozymes
Hybridization between the southwestern toad (Bufo microscaphus) and Woodhouse's toad (B. woodhousii) along the Agua Fria and Hassayampa rivers in central Arizona was investigated over a 3-yr period. Variation in allozymes and the pulse rate of male release calls was compared with morphological variation in these taxa and their hybrids. At two sites on the Agua Fria drainage, data on release calls, but not morphology, were concordant with allozyme evidence of hybridization. At a third site on the Agua Fria, morphological data, but not release calls, corroborated electrophoretic evidence of hybridization. Along the Hassayampa River, all lines of evidence indicated that there has not yet been any hybridization in an...
Allozymic variation in desert pupfish from natural and artificial habitats: Genetic conservation in fluctuating populations
Genetic Characterization of Red Hind, Epinephelus guttatus, Collected from Three Spawning Aggregations in Western Puerto Rican Waters - Variation in Allozymes
Neotropical schistosomiasis: African affinities of the host snail Biomphalaria glabrata (Gastropoda: Planorbidae)