000 03038nab a22004097a 4500
001 G93469
003 MX-TxCIM
005 20230818175059.0
008 210705s2009 cc |||p|op||| 00| 0 eng d
022 _a0578-1752
024 8 _ahttps://doi.org/10.3864/j.issn.0578-1752.2009.01.003
040 _aMX-TxCIM
041 _aeng
090 _aCIS-5618
100 0 _aDan Liang
_920831
245 1 0 _aCharacterization of Lr34/Yr18, Rht-B1b, Rht-D1b genes in CIMMYT wheat cultivars and advanced lines using STS markers
260 _aBeijing (China) :
_bAcademy of Agricultural Sciences,
_c2009.
500 _aPeer review
500 _aAbstrac in Chinese and English
500 _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0578-1752
520 _a(Objective) Characterization of genes Lr34/Yr18, Rht-B1b (Rht1) and Rht-D1b (Rht2) in 263 CIMMYT wheat cultivars and advanced lines will benefit the improvement of rust resistance and plant height in Chinese wheat breeding program. (Method) A total of 263 CIMMYT wheat cultivars and advanced lines were tested by STS markers to understand the distribution of resistance genes Lr34/Yr18 and dwarfing genes Rht-B1b and Rht-D1b. (Result) The marker csLV34 could amplify a 150 bp fragment in the lines with Lr34/Yr18, and a 229 bp fragment in those lines without Lr34/Yr18. Two complementary markers, NH-BF.2/WR1.2 and NH-BF.2/MR1, were used to investigate the alleles Rht-B1a and Rht-B1b, respectively. They could amplify a 400 bp fragment in the genotypes with Rht-B1a and Rht-B1b, respectively. The marker DF/MR2 could generate a 280 bp fragment in the genotype with Rht-D1b. Of the 263 lines, 57 generated a 150 bp fragment with the marker csLV34, indicating the presence of Lr34/Yr18 in these lines, with a frequency of 21.7%. Two hundred and sixteen lines (82.1%) were detected to have the allele Rht-B1b and 38 lines (14.4%) contained the allele Rht-D1b. Twenty-one lines were detected to possess both the wild-type alleles Rht-B1a and Rht-D1a, while 12 had two dwarfing genes Rht-B1b and Rht-D1b. (Conclusion) These STS markers could be useful to detect the genes Lr34/Yr18, Rht-B1b and Rht-D1b. The frequency of Rht-B1b was much higher than that of Rht-D1b in CIMMYT lines.
536 _aGlobal Wheat Program
546 _aText in Chinese
594 _aINT2411
650 7 _aTriticum aestivum
_2AGROVOC
_91296
650 7 _aRusts
_2AGROVOC
_91251
650 7 _aDisease resistance
_2AGROVOC
_91077
650 7 _aGenes
_2AGROVOC
_93563
650 7 _aGenetic markers
_2AGROVOC
_91848
700 0 _aYang Fang-Ping
_916892
700 1 _aHe Zhonghu
_gGlobal Wheat Program
_8INT2411
_9838
700 0 _919599
_aYao Da-Nian
700 0 _9377
_aXianchun Xia
773 0 _tScientia Agricultura Sinica
_gv. 42, no. 1, p. 17-27
_dBeijing (China) : Academy of Agricultural Sciences, 2009.
_wG445218
_x0578-1752
856 4 _yAccess only for CIMMYT Staff
_uhttps://hdl.handle.net/20.500.12665/619
942 _cJA
_2ddc
_n0
999 _c27875
_d27875