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Development and characterization of penta flowering and triple-flowering genotypes in garden pea (Pisum sativum L. var. hortense)

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Title Development and characterization of penta flowering and triple-flowering genotypes in garden pea (Pisum sativum L. var. hortense)
Not Available
 
Creator Jyoti Devi, Gyan P. Mishra, Satish K. Sanwal, Rakesh K. Dubey, Prabhakar M. Singh, Bijendra Singh
 
Subject Environmental regulation, many-flowered raceme, maturity groups, multi-flowering, multi-pod
 
Description Not Available
This study reports the development of a garden pea genotype ‘VRPM–901–5’ producing five flowers per peduncle at multiple flowering nodes, by using single plant selection approach from a cross ‘VL-8 × PC-531’. In addition, five other stable genetic stocks, namely VRPM-501, VRPM–502, VRPM–503, VRPM–901–3 and VRPSeL–1 producing three flowers per peduncle at multiple flowering nodes were also developed. All these unique genotypes were of either mid- or late- maturity groups. Furthermore, these multi-flowering genotypes were identified during later generations (F4 onward), which might be because of fixation of certain QTLs or recessive gene combinations. Surprisingly, a common parent PC–531, imparting multi-flowering trait in ten cross combinations was identified. Thus, the genotype PC–531 seems to harbor some recessive gene(s) or QTLs that in certain combination(s) express the multi-flowering trait. The interaction between genotype and environment showed that temperature (11–20°C) plays a key role in expression of the multi-flowering trait besides genetic background. Furthermore, the possible relationship between various multi-flowering regulatory genes such as FN, FNA, NEPTUNE, SN, DNE, HR and environmental factors was also explored, and a comprehensive model explaining the multi-flowering trait in garden pea is proposed.
ICAR
 
Date 2018-11-24T04:48:22Z
2018-11-24T04:48:22Z
2018-01-01
 
Type Research Paper
 
Identifier 01
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http://krishi.icar.gov.in/jspui/handle/123456789/13018
 
Language English
 
Relation Not Available;
 
Publisher Public Library of Science