000			02995nab|a22004097a|4500
999			_c59952 _d59944
001			59952
003			MX-TxCIM
005			20211006082417.0
008			190118s2019||||wiu|||p|op||||00||0|eng|d
022			_a0011183X
024	8		_ahttps://doi.org/10.2135/cropsci2017.12.0711
040			_aMX-TxCIM
041			_aeng
100	0		_aXiuling Tian _95092
245	1		_aPreliminary exploration of the source, spread, and distribution of Rht24 reducing height in bread wheat
260			_aMadison, USA : _bCrop Science Society of America, _c2019.
500			_aPeer review
520			_aRht24 is a major dwarfing allele that not only reduces plant height but also increases grain weight. The objective of this study was to trace the source, spread, and distribution of Rht24 and determine its frequency in conjunction with other important dwarfing alleles for Rht1 (Rht-B1b), Rht2 (Rht-D1b), and Rht8. Allele-specific cleaved amplified polymorphic sequence (CAPS) markers were developed for accurate and effective genotyping of Rht1 and Rht2, and closely linked flanking markers were used for genotyping of Rht8 and Rht24. Marker analysis showed that Rht24 occurs at a higher frequency (84.2%) than other important dwarfing alleles in elite wheat (Triticum aestivum L.) varieties and usually couples with Rht2 or Rht8. Genotyping of old varieties and landraces showed that Rht24 was widely used in wheat breeding before the Green Revolution (GR). ?Akakomugi? and ?Norin 10?, the donors of Rht8 and GR genes Rht1 and Rht2, respectively, harbored Rht24, so Rht24 likely followed the transfer routes of GR genes and Rht8 to spread worldwide. Pedigree analysis showed that many Chinese elite lines and backbone parents were derived from Akakomugi, contributing to the high frequency of Rht24 in Chinese varieties. Additionally, Norin 10-derived semidwarf varieties from the CIMMYT were widely used in Chinese wheat breeding. Finally, Rht24 was also detected in 30 old Chinese varieties and landraces. Overall, these findings show that the presence of Rht24 in modern Chinese elite varieties originated from Akakomugi, Norin 10, or Chinese landraces. Thus, Rht24 was introgressed early, spread widely, and became genetically fixed in a wide range of modern Chinese wheat germplasm.
526			_aWC _cFP2
546			_aText in English
650		7	_91265 _aSoft wheat _2AGROVOC
650		7	_2AGROVOC _91134 _aGenotypes
650		7	_2AGROVOC _93055 _aDwarfism
700	0		_aZhanwang Zhu _92330
700	0		_aLi Xie _95902
700	0		_aDengan Xu _95904
700	0		_aJihu Li _98355
700	0		_aChao Fu _95905
700	0		_aXinmin Chen _95907
700	0		_aDesen Wang _95906
700	0		_aXianchun Xia _9377
700	1		_aHe Zhonghu _gGlobal Wheat Program _8INT2411 _9838
700	0		_aShuanghe Cao _95093
773	0		_tCrop Science _gv. 59, no. 1, p. 19-24 _x0011-183X
856	4		_uhttps://libcatalog.cimmyt.org/download/cis/59952.pdf _yAccess only for CIMMYT Staff
942			_cJA _2ddc _n0