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Identification and characterization of polymorphic genic SSR markers between cultivated (Oryza sativa) and Indian wild rice (Oryza nivara)

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Title Identification and characterization of polymorphic genic SSR markers between cultivated (Oryza sativa) and Indian wild rice (Oryza nivara)
 
Creator Ngangkham, Umakanta
Katara, Jawahar Lal
Shanmugavadivel, P S
Yadav, Manoj Kumar
Yadav, Suresh
Devachandra, Nongthombam
Samantaray, Sanghamitra
Bose, Lotan Kumar
 
Subject Indian wild rice
Oryza nivara
High yielding indica rice
Oryza sativa
Gene introgression
Mapping population
 
Description 299-310
In the present study, we developed a set of 100 BC2F4 mapping lines derived from the cross between the Oryza nivara (AC100476) and high yielding indica rice, Lalat. Out of 410 RM markers used for polymorphism survey between the parental lines, we identified around 113 (28.9%) polymorphic rice microsatellite (RM) markers between the parental lines that were uniformly distributed among the 12 chromosomes except for few gaps on chromosome 1, 7 and 10. On the basis of motif length, the trinucleotide repeats-motif, (TTA)n was the longest with a maximum motif length of 177 nucleotides. Among the repeat motifs, di-nucleotide repeat-motifs was the most abundant (68.14%) with the motifs (AC/GT)n were the most abundant accounting 56.32% of the total dinucleotide repeat-motifs. Out of the 113 polymorphic RM markers, 56 (49.55%) were found to be genic markers and broadly distributed into three groups such as molecular, biological and cellular categories with 38%, 32% and 30% frequencies, respectively. The present finding would be useful for the identification and mapping of drought related traits and development of drought tolerant rice cultivars in rice breeding program.
 
Date 2021-04-07T06:51:23Z
2021-04-07T06:51:23Z
2020-10
 
Type Article
 
Identifier 0975-0967 (Online); 0972-5849 (Print)
http://nopr.niscair.res.in/handle/123456789/56608
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJBT Vol.19(4) [October 2020]