Broad-few-leaflets and outwardly curved wings: two new mutants of chickpea

Gaur, P M and Gour, V K (2003) Broad-few-leaflets and outwardly curved wings: two new mutants of chickpea. Plant Breeding, 122 (2). pp. 192-194. ISSN 0179-9541

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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

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Cicer arietinum; ethyl methane sulphonate; inheritance; linkage; morphological mutants
Subjects:	Mandate crops > Chickpea
Depositing User:	Ms K Syamalamba
Date Deposited:	08 Nov 2011 08:57
Last Modified:	08 Nov 2011 08:58
URI:	http://oar.icrisat.org/id/eprint/3786
Official URL:	http://onlinelibrary.wiley.com/doi/10.1046/j.1439-...
Projects:	UNSPECIFIED
Funders:	Government of India - Department of Atomic Energy
Acknowledgement:	Financial assistance from the Board of Research in Nuclear Sciences, Department of Atomic Energy, Government of India, and the supply of seeds of all ICC accessions by the International Crops Research Institute for Semi-Arid Tropics, Patancheru, India, are gratefully acknowledged
Links:	Author

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