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Titolo:
Microsatellite diversity associated with ecological factors in Hordeum spontaneum populations in Israel
Autore:
Turpeinen, T; Tenhola, T; Manninen, O; Nevo, E; Nissila, E;
Indirizzi:
Agr Res Ctr Finland, FIN-31600 Jokioinen, Finland Agr Res Ctr Finland Jokioinen Finland FIN-31600 31600 Jokioinen, Finland Boreal Plant Breeding Ltd, Breeding Programmes, FIN-31600 Jokioinen, Finland Boreal Plant Breeding Ltd Jokioinen Finland FIN-31600 Jokioinen, Finland Univ Haifa, Inst Evolut, IL-31905 Haifa, Israel Univ Haifa Haifa Israel IL-31905 fa, Inst Evolut, IL-31905 Haifa, Israel
Titolo Testata:
MOLECULAR ECOLOGY
fascicolo: 6, volume: 10, anno: 2001,
pagine: 1577 - 1591
SICI:
0962-1083(200106)10:6<1577:MDAWEF>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
WILD EMMER WHEAT; AMPLIFIED POLYMORPHIC DNA; STEPWISE MUTATION MODEL; SEQUENCE REPEAT LOCI; GENETIC DIVERSITY; NATURAL-SELECTION; ALLOZYME POLYMORPHISMS; TRITICUM-DICOCCOIDES; ARABIDOPSIS-THALIANA; ALLELE FREQUENCIES;
Keywords:
genetic diversity; Hordeum spontaneum; microsatellites; natural selection; niche; population subdivision; simple sequence repeats;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
66
Recensione:
Indirizzi per estratti:
Indirizzo: Turpeinen, T Agr Res Ctr Finland, FIN-31600 Jokioinen, Finland Agr Res CtrFinland Jokioinen Finland FIN-31600 en, Finland
Citazione:
T. Turpeinen et al., "Microsatellite diversity associated with ecological factors in Hordeum spontaneum populations in Israel", MOL ECOL, 10(6), 2001, pp. 1577-1591

Abstract

Microsatellite diversity at 18 loci was analysed in 94 individual plants of 10 wild barley, Hordeum spontaneum (C. Koch) Thell., populations sampled from Israel across a southward transect of increasing aridity. Allelic distribution in populations was not distributed randomly. Estimates of mean gene diversity were highest in stressful arid-hot environments. Sixty-four percent of the genetic variation was partitioned within populations and 36% between populations. Associations between ecogeographical variables and genediversity, H-e' were established in nine microsatellite loci. By employingprinciple component analysis we reduced the number of ecogeographical variables to three principal components including water factors, temperature and geography. At three loci, stepwise multiple regression analysis explainedsignificantly the gene diversity by a single principal component (water factors). Based on these observations it is suggested that simple sequence repeats are not necessarily biologically neutral.

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Documento generato il 30/05/20 alle ore 14:41:16