000 02113nam a22003017a 4500
001 G98766
003 MX-TxCIM
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040 _aMX-TxCIM
090 _aCIS-7560
100 1 _aGonzalez, O.E.
_uInternational Wheat Genetics Symposium, 12; Pacifico Yokohama (Japan); 8-14 Sep 2013. Program and Abstract Book
_91904
245 0 0 _aQTL:
_b Fine-grained phenotyping for phasic development in doubled haploid population of wheat (Triticum aestivum)
260 _c2013
300 _ap. 140
500 _aAbstract only
520 _aDeveloping time in wheat is of major importance in the context of climate change and crop adaptation, as the adjustment of the phasic development critically requires avoidance of extreme abiotic constraints. Suitable adjustment can elude cold damage during winter and high temperatures in summer. Despite of being controlled by genes sensitive to environmental cues like photoperiod (Ppd) and vernalization (Vrn), crop duration and its phases are also subject of an independent set of genes called `earliness per se'. Further understanding of the genetic control of these complex traits will allow a fine-tune development for particular environments, therefore a segregating doubled haploid (DH) population is used in order to obtain a high-throughput genotyping. An ear emergence quantitative trait loci (QTL) has been identified on chromosome 4A in a mapping DH population of Buster x Charger. These two cultivars differ in length of developmental phases. We expect to identify genetic markers that correlate with the observed difference, in days to ear emergence, sequencing the candidate locus. Future work will involve a fine mapping to improve the markers that control flowering time.
536 _aGlobal Wheat Program
546 _aEnglish
593 _aLucia Segura
594 _aINT1511
595 _aCSC
700 1 _aFarre, A.,
_ecoaut.
700 1 _aGriffiths, S.,
_ecoaut.
_91376
700 1 _aSlafer, G.,
_ecoaut.
700 1 _aReynolds, M.P.
_gGlobal Wheat Program
_8INT1511
_9831
942 _cPRO
999 _c8806
_d8806