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dc.contributor.author Caldwell, Katherine S.
dc.contributor.author Powell, W.
dc.contributor.author Luo, M. -. C.
dc.contributor.author Wolters, P.
dc.contributor.author Dvorak, J.
dc.contributor.author Lagudah, E. S.
dc.contributor.author Akhunov, E.
dc.date.accessioned 2010-10-12T12:26:50Z
dc.date.available 2010-10-12T12:26:50Z
dc.date.issued 2004-06
dc.identifier.citation Caldwell , K S , Powell , W , Luo , M C , Wolters , P , Dvorak , J , Lagudah , E S & Akhunov , E 2004 , ' Haplotype based sequence variation at starch biosynthesis genes provides evidence for recurrent origin of wheat and its relative Aegilops cylindrica ' Genetics , pp. 941-947 . , 10.1534/genetics.103.016303 en
dc.identifier.issn 1943-2631
dc.identifier.other PURE: 140382
dc.identifier.other dspace: 2160/5789
dc.identifier.uri http://hdl.handle.net/2160/5789
dc.description Caldwell, K.S., Dvorak, J., Lagudah, E.S., Akhunov, E., Luo, M-C., Wolters, P., Powell, W. (2004). Haplotype based sequence variation at starch biosynthesis genes provides evidence for recurrent origin of wheat and its relative Aegilops cylindrica. Genetics, 167, (2), 941-947 en
dc.description.abstract Sequencing was used to investigate the origin of the D genome of the allopolyploid species Triticum aestivum and Aegilops cylindrica. A 247-bp region of the wheat D-genome Xwye838 locus, encoding ADP-glucopyrophosphorylase, and a 326-bp region of the wheat D-genome Gss locus, encoding granule-bound starch synthase, were sequenced in a total 564 lines of hexaploid wheat (T. aestivum, genome AABBDD) involving all its subspecies and 203 lines of Aegilops tauschii, the diploid source of the wheat D genome. In Ae. tauschii, two SNP variants were detected at the Xwye838 locus and 11 haplotypes at the Gss locus. Two haplotypes with contrasting frequencies were found at each locus in wheat. Both wheat Xwye838 variants, but only one of the Gss haplotypes seen in wheat, were found among the Ae. tauschii lines. The other wheat Gss haplotype was not found in either Ae. tauschii or 70 lines of tetraploid Ae. cylindrica (genomes CCDD), which is known to hybridize with wheat. It is concluded that both T. aestivum and Ae. cylindrica originated recurrently, with at least two genetically distinct progenitors contributing to the formation of the D genome in both species. en
dc.format.extent 7 en
dc.language.iso eng
dc.relation.ispartof Genetics en
dc.title Haplotype based sequence variation at starch biosynthesis genes provides evidence for recurrent origin of wheat and its relative Aegilops cylindrica en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1534/genetics.103.016303
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


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