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008 2505152024|||||-us||p|op||||00||0|eng|dd
022 _a0179-9541
022 _a1439-0523 (Online)
024 8 _ahttps://doi.org/10.1111/pbr.13147
040 _aMX-TxCIM
041 _aeng
100 1 _aKhulbe, R.K.
_938867
245 1 0 _aNew liguleless (lg2) maize stocks :
_bGenetic resources for leaf architectural and haploid induction rate assessment studies
260 _aUnited States of America :
_bJohn Wiley & Sons Ltd.,
_c2024.
500 _aPeer review
520 _aLiguleless mutants produce defective ligules and auricles and, consequently, have more upright leaves than their ligulate counterparts, making them useful genetic material for plant architectural studies. Besides, owing to the recessive nature and amenability of the liguleless trait to phenotyping at the seedling stage, liguleless mutants are popularly used for ‘proof-of-concept’ demonstration and assessment of haploid induction rate (HIR) of haploid inducer lines (HILs) in maize. The commonly used liguleless testers in maize are of temperate origin and are challenging to use and maintain under tropical/sub-tropical conditions. In the present study, liguleless lines (V 601, V 602, V 603 and V 604) derived from crosses between agronomically superior locally adapted tropical ligulate lines (V 407 and CM 152) and liguleless donors of temperate origin (PDH-3 and PDH-8) were evaluated for different agro-morphological traits. Liguleless line V 602 was also used as a tester to assess the HIR of haploid inducer line EC937890 (CIM2GTAILP2). The results showed a mean HIR of 12.42% for EC937890, consistent with the HIR reported in other studies, thus demonstrating the efficacy of V 602 as a tester for determining HIR. The agronomically superior liguleless maize lines reported in this study will, therefore, be a valuable resource for leaf architectural studies, assessment of HIR of candidate HILs and maintenance of high HIR in the HILs presently in wide use in the doubled haploid (DH) programmes. Additionally, these genetic stocks carry the liguleless trait in genetic backgrounds with known heterotic affinity with early maturity Indian public maize germplasm and, therefore, can be used directly as parents in hybrid development programmes.
546 _aText in English
650 7 _aMaize
_2AGROVOC
_91173
650 7 _aGenetic resources
_2AGROVOC
_91127
650 7 _aHaploidy
_2AGROVOC
_91925
650 7 _aDevelopment programmes
_2AGROVOC
_95325
700 1 _aPattanayak, A.
_915790
700 0 _aDevender Sharma
_938868
700 1 _aBisht, G.S.
_911620
700 1 _aPant, M.C.
_911621
773 _tPlant Breeding
_gv. 143, no. 2, p. 168-177
_dUnited States of America : John Wiley & Sons Ltd.,, 2024.
_x0179-9541
_wu445212
942 _cJA
_n0
_2ddc
999 _c68817
_d68809