Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Genetic variation within and relationships among populations of Asian goats (Capra bircus)
Autore:
Barker, JSF; Tan, SG; Moore, SS; Mukherjee, TK; Matheson, JL; Selvaraj, OS;
Indirizzi:
Univ New England, Sch Rural Sci & Nat Resources, Armidale, NSW 2351, Australia Univ New England Armidale NSW Australia 2351 rmidale, NSW 2351, Australia Univ Pertanian Malaysia, Dept Biol, Serdang 43400, Malaysia Univ PertanianMalaysia Serdang Malaysia 43400 , Serdang 43400, Malaysia CSIRO, Div Trop Anim Prod, Mol Anim Genet Ctr, St Lucia, Qld 4072, Australia CSIRO St Lucia Qld Australia 4072 enet Ctr, St Lucia, Qld 4072, Australia Univ Malaya, Inst Adv Studies, Kuala Lumpur 59100, Malaysia Univ Malaya Kuala Lumpur Malaysia 59100 es, Kuala Lumpur 59100, Malaysia
Titolo Testata:
JOURNAL OF ANIMAL BREEDING AND GENETICS-ZEITSCHRIFT FUR TIERZUCHTUNG UND ZUCHTUNGSBIOLOGIE
fascicolo: 4, volume: 118, anno: 2001,
pagine: 213 - 233
SICI:
0931-2668(200108)118:4<213:GVWARA>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
BUFFALO BUBALUS-BUBALIS; PHYLOGENETIC TREES; MICROSATELLITE MARKERS; F-STATISTICS; DIVERSITY; BREEDS; DISTANCE; LOCI; DIFFERENTIATION; HETEROZYGOSITY;
Keywords:
biochemical polymorphism; microsatellites; genetic distance; phylogeny; inbreeding;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
66
Recensione:
Indirizzi per estratti:
Indirizzo: Barker, JSF Univ New England, Sch Rural Sci & Nat Resources, Armidale, NSW2351, Australia Univ New England Armidale NSW Australia 2351 2351, Australia
Citazione:
J.S.F. Barker et al., "Genetic variation within and relationships among populations of Asian goats (Capra bircus)", J ANIM BR G, 118(4), 2001, pp. 213-233

Abstract

Genetic variation at 59 protein coding loci (16 polymorphic) and 25 microsatellite loci was analysed for 11 indigenous south-east Asian goat populations, and the Australian feral population, to determine the magnitude of genetic differentiation and the genetic relationships among the populations. Significant deviations from Hardy-Weinberg equilibrium were detected in one or more populations for eight of the nine protein loci with codominant alleles, and for microsatellites for all except the two Sri Lankan populations and for all but four loci. For both marker types, average inbreeding coefficients (F-IS) were exceptionally high. Heterogeneity of deviations from Hardy-Weinberg equilibrium for the microsatellites showed no differences for among loci within populations as compared with among populations within loci. For protein loci, however, the former was higher, indicating selection affecting allele frequencies at some loci. The variance among protein loci was significantly higher than among microsatellite loci, further indicating selection at some protein loci. There was significant differentiation among populations for both protein and microsatellite loci, most likely reflecting the geography of south-east Asia, and the presumed spread of goats throughout the region. Phylogenies derived from pair-wise genetic distance estimates show some similar clustering for the microsatellite and protein based trees, but bootstrap support was generally low for both. A phylogeny based on the combined set of 38 protein and microsatellite loci showed better consistency with geography and higher bootstrap values. The genetic distance phylogeny and the Weitzman diversity tree derived from microsatellite data showed some identical clusters, and both identified the Ujung Pandang and Australia populations as contributing most to overall genetic diversity.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 10:01:32