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- Title
Broad-few-leaflets and outwardly curved wings: two new mutants of chickpea.
- Authors
Gaur, P. M.; Gour, V. K.
- Abstract
Abstract This study was aimed at the induction of morphological mutations for increasing genetic variability and making available additional genetic markers for linkage studies in chickpea (Cicer arietinum L.). A wilt-resistant, well-adapted chickpea cultivar of central India, ‘JG 315’ (Jawahar gram 315), was used for the induction of mutations. Seeds presoaked in distilled water for 2 h were treated with ethyl methane sulphonate (EMS) using six different concentrations (0.1, 0.2, 0.3, 0.4, 0.5 and 0.6%) and two different durations (6 and 8 h). Several morphological mutants were identified in M2 . One of the mutants, isolated from a treatment of 0.3% EMS for 8 h, had five to nine large leaflets per leaf in comparison with 11–17 normal-sized leaflets per leaf observed in the parental cultivar ‘JG 315’. The mutant was designated broad-few-leaflets. Many leaves of this mutant showed a cluster of three to five overlapping leaflets at the terminal end. The other mutant, designated outwardly curved wings, was isolated from the 0.5% EMS treatment for 6 h. In this mutant, the wings were curved outwards, exposing the keel petal, while the wings in typical chickpea flowers are incurved and enclose the keel. The lines developed from the broad-few-leaflets and outwardly curved wings mutants were named JGM 4 (Jawahar gram mutant 4) and JGM 5, respectively. Inheritance studies indicated that each of these mutant traits is governed by a single recessive gene. The gene for broad-few-leaflets was designated bfl and the gene for outwardly curved wings was designated ocw. The locus bfl was found to be linked with the locus lg (light green foliage) with a map distance of 18.7 ± 6.3 cM.
- Subjects
CHICKPEA; PLANT mutation; BIOLOGICAL variation; GENETIC markers
- Publication
Plant Breeding, 2003, Vol 122, Issue 2, p192
- ISSN
0179-9541
- Publication type
Article
- DOI
10.1046/j.1439-0523.2003.00807.x