000 03055nab a22004577a 4500
999 _c63202
_d63194
001 63202
003 MX-TxCIM
005 20230731172210.0
008 191206s2020 vm |||p|op||| 00| 0 eng d
022 _a2525-2461
024 8 _ahttps://doi.org/10.31276/VJSTE.62(1).55-61
040 _aMX-TxCIM
041 _aeng
100 0 _918127
_aNguyen Xuan Thang
245 1 0 _aStudies on applying SNP markers to breeding drought-tolerant maize hybrids
260 _aViet Nam :
_bMinistry of Science and Technology,
_c2020.
500 _aPeer review
520 _aThe results of testing the International Maize and Wheat Improvement Center’s (CIMMYT’s) hybrid combinations, developed from hybrid 790 F2:3 lines and 10 parental lines, using two testers (CML451 and CLO2450) under optimal and managed drought conditions in Ninh Thuan, Vietnam, show that the average grain yield of the biparental (BP) groups of heterosis groups A and B is, respectively, 2.58-3.65 tons/ha and 2.56-2.76 tons/ha in drought conditions, and 4.24-5.02 tons/ha and 5.41-5.93 tons/ha in wellwatered conditions, respectively. By genotyping eight BP populations with 39,846 single nucleotide polymorphism (SNP) markers, CIMMYT experts identified 15 important gene regions that regulate grain yield associated with 15 SNP markers on chromosomes 3, 4, 5, 6, 7, 8, 9, and 10 which is useful for applying molecular markers in breeding drought-tolerant maize. On that basis, the Maize Research Institute of Vietnam studied and genotyped three populations, including 450 F2 families, with 96 SNPs using the Kompetitive Allele Specific PCR (KASP) genotyping method. The result was that 57 SNP markers related to drought tolerance were found useful to these populations. In addition, 27 F2 families demonstrating drought tolerance and high grain yield were selected as primary materials for breeding maize hybrids tolerant to stresses and adaptive to climate change.
526 _aMCRP
_bFP3
546 _aText in English
591 _aGajanan Saykhedkar : Not in IRS Staff list but CIMMYT Affiliation
591 _aBABU, R. : No CIMMYT Affiliation
650 7 _2AGROVOC
_91080
_aDrought
650 7 _aGenomes
_gAGROVOC
_2
_91131
650 7 _aMaize
_gAGROVOC
_2
_91173
650 0 _aSingle nucleotide polymorphisms
_gAGROVOC
_910805
650 7 _2AGROVOC
_91848
_aGenetic markers
700 0 _918128
_aBui Manh Cuong
700 1 _91469
_aDang Ngoc Ha
700 3 _91467
_aDung Do Van
700 1 _91434
_aNair, S.K.
_8INT3232
_gGlobal Maize Program
700 1 _9925
_aVinayan, M.T.
_8INT3341
_gGlobal Maize Program
700 1 _91468
_aGajanan Saykhedkar
700 1 _9875
_aBABU, R.
_8INT2925
_gGlobal Maize Program
700 0 _918129
_aDoan Thi Bich Thao
700 0 _918130
_aTran Quang Dieu
700 0 _918131
_aNguyen Chi Thanh
700 1 _9862
_aZaidi, P.H.
_8INT2823
_gGlobal Maize Program
773 0 _dViet Nam : Ministry of Science and Technology, 2020.
_gv. 62, no. 1, p. 55-61
_tVietnam Journal of Science, Technology and Engineering
_x2525-2461
942 _2ddc
_cJA
_n0