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Titolo:
Analysis of relationships between Aegilops tauschii and the D genome of wheat utilizing microsatellites
Autore:
Lelley, T; Stachel, M; Grausgruber, H; Vollmann, J;
Indirizzi:
Inst Agrobiotechnol, Dept Plant Biotechnol, A-3430 Tulln, Austria Inst Agrobiotechnol Tulln Austria A-3430 otechnol, A-3430 Tulln, Austria Univ Agr Sci Vienna, Dept Plant Breeding, A-1180 Vienna, Austria Univ Agr Sci Vienna Vienna Austria A-1180 eeding, A-1180 Vienna, Austria
Titolo Testata:
GENOME
fascicolo: 4, volume: 43, anno: 2000,
pagine: 661 - 668
SICI:
0831-2796(200008)43:4<661:AORBAT>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEXAPLOID WHEAT; TRITICUM-TAUSCHII; GENETIC-LINKAGE; MARKERS; ORIGIN;
Keywords:
Triticum aestivum; Aegilops tauschii; genetic distance; center of origin; evolution;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Lelley, T Inst Agrobiotechnol, Dept Plant Biotechnol, Konrad Lorenz Str 20, A-3430 Tulln, Austria Inst Agrobiotechnol Konrad Lorenz Str 20 Tulln Austria A-3430 a
Citazione:
T. Lelley et al., "Analysis of relationships between Aegilops tauschii and the D genome of wheat utilizing microsatellites", GENOME, 43(4), 2000, pp. 661-668

Abstract

Sixty Aegilops tauschii accessions and 60 European hexaploid wheat varieties were analyzed with 14 wheat microsatellite (WMS) primer sets to (i) study the phylogeny of Ae. tauschii, (ii) search for a specific genotype of Ae.tauschii most closely related to the D genome of hexaploid wheat, and (iii) narrow down the presumed birthplace of the latter. An average of 6.5 and 4.0 alleles per locus was detected in Ae. tauschii and in wheat, respectively. The highest genetic diversity of Ae. tauschii was found in Transcaucasia and southeast of the Caspian Sea. Distribution of the 87 alleles (withoutnull alleles) found in Aegilops did not allow differentiation of the species into the two subspecies strangulata and tauschii. Excluding null alleles, 41 alleles occurred parallel in wheat and in Aegilops. Data obtained in this study supports the view of the D genome of hexaploid wheat being a composite of several sources but does not support subsp. strangulata as the possible major source of the D genome. The highest number of region-specific alleles (three) in Ae. tauschii occurring also in the D genome of wheat, andtherefore most indicative for its evolution was found in present-day Georgia, where subsp. strangulata is not endemic.

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Documento generato il 01/10/20 alle ore 06:46:33