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Titolo:
ECOLOGICAL CORRELATES OF RAPD DNA DIVERSITY OF WILD BARLEY, HORDEUM-SPONTANEUM, IN THE FERTILE CRESCENT
Autore:
NEVO E; BAUM B; BEILES A; JOHNSON DA;
Indirizzi:
UNIV HAIFA,INST EVOLUT,MT CARMEL IL-31905 HAIFA ISRAEL AGR & AGRI FOOD CANADA,CTR LAND & BIOL RESOURCES RES,CENT EXPT FARM OTTAWA ON CANADA UNIV OTTAWA,OTTAWA CARLETON INST BIOL OTTAWA ON K1N 6N5 CANADA
Titolo Testata:
Genetic resources and crop evolution
fascicolo: 2, volume: 45, anno: 1998,
pagine: 151 - 159
SICI:
0925-9864(1998)45:2<151:ECORDD>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
GENETIC DIVERSITY; ENVIRONMENTAL ASSOCIATIONS; ISRAEL; RESOURCES; INFECTION; EVOLUTION; PATTERNS; MARKERS;
Keywords:
GENETIC DIVERSITY; ECOLOGICAL DIVERSITY; STRESS; NEAR EAST; WILD BARLEY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
29
Recensione:
Indirizzi per estratti:
Citazione:
E. Nevo et al., "ECOLOGICAL CORRELATES OF RAPD DNA DIVERSITY OF WILD BARLEY, HORDEUM-SPONTANEUM, IN THE FERTILE CRESCENT", Genetic resources and crop evolution, 45(2), 1998, pp. 151-159

Abstract

Genetic variability in RAPDs(Randomly Amplified Polymorphic DNA) was studied in 104 genotypes of wild barley, Hordeum spontaneum from 21 populations sampled in Israel, Turkey and Iran, seven population from each country. The band (= loci) frequencies were calculated for each population and correlated with ecogeographical variables. In general, high RAPD genetic diversity indices were associated with stressful environments, either with hot or cold steppes and deserts. Interpopulationalgenetic distances showed no association with the geographic distance between the populations' provenance. Significant Spearman rank correlations between RAPD band frequencies and ecogeographical parameters of provenance occured. Frequencies of RAPD bands were significantly correlated with the principal component factors of allozymes. The correlation data indirectly suggest that natural selection appears to be the major determinant of both RAPD and allozyme diversities both being correlated with environmental stress.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 07:07:47