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Advances in Crop Science and Technology

.: Home > Advances in Crop Science and Technology > 2015 > Volume 3 Number 3 > Iqbal SA1 *, Mirza Mofazzal Islam2 , Ahmed Hossain Md3 and Ananya Malaker4

DNA Fingerprinting of Rice Lines for Salinity Tolerance at Reproductive Stage

Iqbal SA1 *, Mirza Mofazzal Islam2 , Ahmed Hossain Md3 and Ananya Malaker4
1Department of Biotechnology, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh 2Principle Scientific Officer & Head, Biotechnology Division, Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh-2202, Bangladesh
Abstract :

Salinity is the most common abiotic stresses leading to the reduction of rice yield in many rice-growing areas of the world. This study was undertaken to assess the genetic diversity among saline treatment and susceptible rice lines using molecular marker (SSR). Salinity screening was performed at reproductive stage using sustained water bath following IRRI standard protocol. Twenty two rice lines were used for molecular analysis using three SSR markers: RM1287, RM342 and RM493 to determine salinity tolerance at reproductive stage. For DNA fingerprinting of rice Varieties, DNA was extracted from leaf samples using IRRI standard protocol. Amplified microsatellite loci were analyzed for polymorphism using Polyacrylamide Gel Electrophoresis (PAGE) and the result revealed that all the primers detected polymorphism among the rice lines analyzed. Using 3 SSR markers, a total of 25 alleles were detected among the 22 rice lines. The polymorphism information content (PIC) reflects the diversity allele frequency among the lines, which ranged from 0.59 to 0.88 with an average of 0.74. RM493 was the best marker for identification of genotypes as revealed by PIC values. The results of microsatellite marker based DNA fingerprinting analysis will be useful for the selection of parents for developing salt tolerant rice variety through molecular breeding.

Keywords :
DNA fingerprinting; Salinity tolerance; Reproductive stage; Oryza sativa

Date Deposited : 04 Apr 2016 12:16

Last Modified : 04 Apr 2016 12:16

Official URL:

Volume 3, Number 3, May 2015 , ISSN ISSN: 2329-8863

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