000 03082nab a22004697a 4500
001 G98469
003 MX-TxCIM
005 20211124155601.0
008 211124s2013 gw |||p|op||| 00| 0 eng d
022 _a1432-2242 (Online)
022 _a0040-5752
024 8 _ahttps://doi.org/10.1007/s00122-013-2158-x
040 _aMX-TxCIM
041 _aeng
090 _aCIS-7436
100 0 _aYadong Xue
_925265
245 1 0 _aGenome-wide association analysis for nine agronomic traits in maize under well-watered and water-stressed conditions
260 _aBerlin (Germany) :
_bSpringer,
_c2013.
500 _aPeer review
500 _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0040-5752
520 _aDrought can cause severe reduction in maize production, and strongly threatens crop yields. To dissect this complex trait and identify superior alleles, 350 tropical and subtropical maize inbred lines were genotyped using a 1536-SNP array developed from drought-related genes and an array of 56,110 random SNPs. The inbred lines were crossed with a common tester, CML312, and the testcrosses were phenotyped for nine traits under well-watered and water-stressed conditions in seven environments. Using genome-wide association mapping with correction for population structure, 42 associated SNPs (P ≤ 2.25 × 10−6 0.1/N) were identified, located in 33 genes for 126 trait × environment × treatment combinations. Of these genes, three were co-localized to drought-related QTL regions. Gene GRMZM2G125777 was strongly associated with ear relative position, hundred kernel weight and timing of male and female flowering, and encodes NAC domain-containing protein 2, a transcription factor expressed in different tissues. These results provide some good information for understanding the genetic basis for drought tolerance and further studies on identified candidate genes should illuminate mechanisms of drought tolerance and provide tools for designing drought-tolerant maize cultivars tailored to different environmental scenarios.
536 _aGlobal Maize Program
546 _aText in English
591 _aSpringer|No CIMMYT affiliation (Gethi, J.)|CIMMYT Informa No. 1873
594 _aINT2735|INT3343
595 _aCSC
700 1 _aWarburton, M.L.
_94138
700 1 _aSawkins, M. C.
_96567
700 0 _aXuehai Zhang
_919695
700 _aSetter, T.L.
_96557
700 1 _9857
_aYunbi Xu
_gGlobal Maize Program
_8INT2735
700 1 _aGrudloyma, P.
_92050
700 1 _9927
_aGethi, J.
_gGlobal Maize Program
_8INT3343
700 1 _9835
_aRibaut, J.M.
_gIntegrated Breeding Platform
_8INT1991
700 0 _aWanchen Li
_924648
700 0 _aXiaobo Zhang
_925266
700 0 _aYonglian Zheng
_924631
700 1 _9398
_aJianbing Yan
773 0 _tTheoretical and Applied Genetics
_gv. 126, no. 10, p. 2587-2596
_dBerlin (Germany) : Springer, 2013.
_wG444762
_x0040-5752
856 4 _uhttps://hdl.handle.net/20.500.12665/1017
_yAccess only for CIMMYT Staff
942 _cJA
_2ddc
_n0
999 _c30365
_d30365