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Ssr-based molecular profiling of selected donors of wide compatibility, elongated uppermost internode, stigma exsertion and submergence tolerance traits and parental lines of commercial rice (o. Sativa l.) Hybrids

OAR@ICRISAT

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Relation http://oar.icrisat.org/8911/
http://www.tjprc.org/view-archives.php?year=2015&jtype=2&id=50&details=archives
 
Title Ssr-based molecular profiling of selected donors of wide compatibility, elongated uppermost internode, stigma exsertion and submergence tolerance traits and parental lines of commercial rice (o. Sativa l.) Hybrids
 
Creator Priyadarshi, R
Singh, A K
Khandekar, D
Koradi, P
DeumuduNaidu, P
Khera, P
Hariprasad, A S
Ulaganathan, K
Shenoy, V
 
Subject Food legumes
Food and Nutrition
 
Description Molecular breeding plays an important role in sustainable agriculture development. Hybrid rice technology aims to increase the yield potential of rice beyond the level of inbred high-yielding varieties (HYVs) by exploiting the phenomenon of hybrid vigour or heterosis. Improvement of hybrid rice parental line is necessary to meet the food security problem. Parental polymorphism was carried with 215 SSR markers between five recurrents and ten donors. During the foreground selection, both reported markers (S5-Indel and BF-S5) were validated for wide compatibility, 2 out of 14 (ART5 and SC3) validates for submergence tolerance, one out of two (RM5) validate for stigma exsertion, whereas 2 of 3 markers (RM5970, RM3476) validated for elongated uppermost internode traits between recurrents and donors. For background selection, maximum polymorphic markers (112) between IR58025eB i.e improved maintainer line with elongated uppermost internode and Oryza meridionalis and minimum polymorphic markers (42) between IR79156B and IR91-1591-3 were found. Marker-assisted backcrossing accelerate, the transfer of gene of interest in desirable genetic background. Genotypes IR58025B and IR58025eB emerged as genetically most similar with a value of 97%. The genotypes IR64 Sub1 and Oryza meridionalis were found most divergent showing 33% genetic similarity. Dissimilarity coefficient of the generated information obtained on genetic relatedness would be supportive in further rice breeding program.
 
Publisher TJPRC Pvt. Ltd.
 
Date 2015-04
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/8911/1/SSR-BASED%20..pdf
Priyadarshi, R and Singh, A K and Khandekar, D and Koradi, P and DeumuduNaidu, P and Khera, P and Hariprasad, A S and Ulaganathan, K and Shenoy, V (2015) Ssr-based molecular profiling of selected donors of wide compatibility, elongated uppermost internode, stigma exsertion and submergence tolerance traits and parental lines of commercial rice (o. Sativa l.) Hybrids. International Journal of Agricultural Science and Research (IJASR), 5 (2). pp. 67-92. ISSN 2321-0087