000 02531nab a22004097a 4500
001 G96078
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022 _a1469-8137 (Revista en electrónico)
022 0 _a0028-646X
024 8 _ahttps://doi.org/10.1111/j.1469-8137.2009.03099.x
040 _aMX-TxCIM
041 0 _aEn
072 0 _aF30
100 1 _aZhiai Guo
245 0 0 _aDiscovery, evaluation and distribution of haplotypes of the wheat Ppd-D1 gene
260 _c2010
500 _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=1469-8137
520 _aPpd-D1 is one of the most potent genes affecting the photoperiod response of wheat (Triticum aestivum). Only two alleles, insensitive Ppd-D1a and sensitive Ppd-D1b, were known previously, and these did not adequately explain the broad adaptation of wheat to photoperiod variation.|In this study, five diagnostic molecular markers were employed to identify Ppd- D1 haplotypes in 492 wheat varieties from diverse geographic locations and 55 accessions of Aegilops tauschii, the D genome donor species of wheat.|Six Ppd-D1 haplotypes, designated I-VI, were identified. Types II, V and VI were considered to be more ancient and types I, III and IV were considered to be derived from type II. The transcript abundances of the Ppd-D1 haplotypes showed continuous variation, being highest for haplotype I, lowest for haplotype III, and correlating negatively with varietal differences in heading time. These haplotypes also significantly affected other agronomic traits. The distribution frequency of|Ppd-D1 haplotypes showed partial correlations with both latitudes and altitudes of wheat cultivation regions.|The evolution, expression and distribution of Ppd-D1 haplotypes were consistent evidentially with each other. What was regarded as a pair of alleles in the past can now be considered a series of alleles leading to continuous variation.
546 _aEnglish
591 _aJohn Wiley
593 _aCarelia Juarez
595 _aRPC
650 1 0 _aAdaptability
650 1 0 _aCorrelation
650 1 0 _aEvolution
650 1 0 _aExpression
650 1 0 _aPhotoperiod response
650 1 0 _awheat (T. aestivum L.)
700 1 _aJizeng Jia,
_ecoaut.
700 1 _aRonghua Zhou,
_ecoaut.
700 1 _aYanxia Song,
_ecoaut.
700 1 _aZhenglong Ren,
_ecoaut.
773 0 _tNew Phytologist
_gv. 185, no. 3, p. 841-851
942 _cJA
999 _c28885
_d28885