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Indian Journal of Biotechnology (IJBT) >
IJBT Vol.11 [2012] >
IJBT Vol.11(1) [January 2012] >
| Title: | Microsatellite diversity in indigenous glutinous rice landraces of Assam |
| Authors: | Rathi, Sunayana
Sarma, R N |
| Keywords: | Assam Rice
Bora Rice
Chokuwa Rice
Genetic Diversity
SSR Marker |
| Issue Date: | Jan-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The genetic diversity in 106 glutinous rice landraces of Assam, India, was
analyzed using SSR markers. The apparent amylose content (AAC) in Chokuwa
(12.24%) was higher than Bora (0.145%) genotypes. The SSR markers showed
high level of polymorphism ranging from 80 to 100%. A total of 181 alleles were
detected at the 37 simple sequence repeat (SSR) loci. The number of alleles per
locus ranged from 2 to 13, with an average of 4.9. The polymorphism information
content (PIC) values varied from 0.452 to 0.817, with an average of 0.716. The
size range between the smallest and the largest allele for a given
microsatellite locus varied between 100 to 700 bp. The SSR markers RM252, RM241
and RM206 had higher number of alleles and higher PIC values. Dendrogram
revealed two major clusters at 24% similarity with further sub-clusters. The
results indicate that there is scope for exploiting the genetic diversity and
it will help breeders for selection of parents to develop high yielding variety
and to tag gene for special traits. |
| Page(s): | 23-29 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0967 (Online); 0972-5849 (Print) |
| Source: | IJBT Vol.11(1) [January 2012]
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