000 02624nab a22003497a 4500
999 _c59934
_d59926
001 59934
003 MX-TxCIM
005 20240826225837.0
008 190117s2017 ii |||po|p||||00| 0|eng|d
024 8 _a10.15740/HAS/AU/12.TECHSEAR(2)2017/583-588
040 _aMX-TxCIM
041 _aeng
100 0 _98272
_aShrikant Yankanchi
245 1 _aFunctional polymorphism for crtRB1 gene loci in tropical maize (Zea mays L.) inbred lines
260 _aIndia :
_bHind Agricultural Research and Training Institute,
_c2017.
520 _aMaize (Zea mays L.) is an important cropknown for its carotenoid diversity among cereals which accumulates significant levels of proA (provitamin A) and non-proA carotenoids its kernels. The proA components of maize endosperm promises to solve themajor global problem VAD (Vitamin A deficiency). Among several genes involved in -carotene biosynthetic pathway, crtRB1is very important gene associated with three polymorphisms viz., 5 'TE, In Del4 and 3'TE (Transposable Element) responsible for variation in carotenoid levels in maize endosperm. Due to insertion of TE at 3' UTR (Un Translated Region), crtRB1again exhibits polymorphism with 3 alleles, however, only allele 1(favourable allele; 543bp amplicon) of this crtRB1-3'TE gene will double the -carotene concentration in maize endosperm and allele 2 and 3 termed as unfavourable. This study was undertaken to find out the allelic difference for crtRB1gene loci. Totally 228 tropical maize inbred lines were screened for allele1 of crtRB1gene using crtRB1-3’TE gene specific markers. Among 228 in breds, 226 inbreds showed the presence of allele 2 and the two inbredsVL1016247 and VL1016213 possessed both alleles 1 and 2 which are found to be heterozygous for crtRB1loci. This study indicated the possible use of (VL1016247 and VL1016213) these two inbreds for developing provitaminA (proA) rich maize hybrids using marker assisted selection (MAS).
526 _aMCRP
_cFP3
546 _aText in English
650 7 _2AGROVOC
_91314
_aZea mays
650 7 _aInbred lines
_gAGROVOC
_2
_91155
650 0 _aPolymorphism
_gAGROVOC
_93752
700 0 _98273
_aP.M. SALIMATH
700 1 _93768
_aPatil, A.
700 1 _9862
_aZaidi, P.H.
_gGlobal Maize Program
_8INT2823
700 0 _98274
_aB. Kisan
700 1 _93769
_aKuchanur, P.H.
700 1 _8INT3341
_9925
_aVinayan, M.T.
_gGlobal Maize Program
700 1 _91446
_aSeetharam, K.
773 _gv. 12, p. 583-588
_tAGRICULTURE UPDATE
_x0976-6847
856 _yOpen Access through DSpace
_uhttps://repository.cimmyt.org/handle/10883/19798
942 _2ddc
_cJA
_n0