Allelic relationships of flowering time genes in chickpea

Gaur, P M and Samineni, S and Tripathi, S and Varshney, R K and Gowda, C L L (2015) Allelic relationships of flowering time genes in chickpea. Euphytica, 203 (2). pp. 295-308. ISSN 0014-2336

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Abstract

Flowering time and crop duration are the most important traits for adaptation of chickpea (Cicer arietinum L.) to different agro-climatic conditions. Early flowering and early maturity enhance adaptation of chickpea to short season environments. This study was conducted to establish allelic relationships of the early flowering genes of ICC 16641, ICC 16644 and ICCV 96029 with three known early flowering genes, efl-1 (ICCV 2), ppd or efl-2 (ICC 5810), and efl-3 (BGD 132). In all cases, late flowering was dominant to early-flowering. The results indicated that the efl-1 gene identified from ICCV 2 was also present in ICCV 96029, which has ICCV 2 as one of the parents in its pedigree. ICC 16641 and ICC 16644 had a common early flowering gene which was not allelic to other reported early flowering genes. The new early flowering gene was designated efl-4. In most of the crosses, days to flowering was positively correlated with days to maturity, number of pods per plant, number of seeds per plant and seed yield per plant and negatively correlated or had no correlation with 100-seed weight. The double-pod trait improved grain yield per plant in the crosses where it delayed maturity. The information on allelic relationships of early flowering genes and their effects on yield and yield components will be useful in chickpea breeding for desired phenology.

Item Type: Article
Divisions: RP-Grain Legumes
CRP: CGIAR Research Program on Grain Legumes
Uncontrolled Keywords: Allelic relationship, Chickpea, Early flowerin, Early maturity, Inheritance
Subjects: Mandate crops > Chickpea
Others > Genetics and Genomics
Depositing User: Mr B K Murthy
Date Deposited: 08 Jun 2015 09:18
Last Modified: 21 Oct 2016 06:33
URI: http://oar.icrisat.org/id/eprint/8748
Official URL: http://dx.doi.org/10.1007/s10681-014-1261-7
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: This work was undertaken as a part of the CGIAR Research Program on Grain Legumes and core grant of ICRISAT. We are thankful to VS Hegde, Indian Agricultural Research Institute (IARI), Dharwad, Karnataka, India for supplying seed of chickpea line BGD 132.
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