Genetic Analysis of Blast Resistance in Rice with Simple Sequence Repeats (SSR)

Rani, Manisha; Adilakshmi, D.

doi:10.1080/15427528.2011.555834

Cited by 9 publications

(8 citation statements)

References 9 publications

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“…The SSR markers are particularly suitable for evaluating genetic diversity and relationships among plant species, populations, or individuals (Tu et al, 2007), germplasm conservation or utilization (Sharma et al, 2007); markerassisted selection (Rani and Adilakshmi, 2011); cultivar identification; hybrid purity analysis, gene mapping studies (Sarao et al, 2010), and parents selection in breeding programs (Xu et al, 2002). In rice, SSR markers have been widely used in assessing genetic diversity Courtois et al, 2012;Zhang et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the genetic diversity and population structure in temperate japonica rice germplasm used in breeding in Chile, with SSR markers

Becerra

Paredes

Ferreira

et al. 2017

Chilean J. Agric. Res.

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Rice Breeding Program (RBP) of the Instituto de Investigaciones Agropecuarias (INIA) at Chillán, Chile, has a rice (Oryza sativa L.) germplasm collection that consists of 1200 accessions, mainly temperate japonica rice accessions, well adapted to the local conditions. Most of the new introduced accessions adapt very poorly to Chilean agroecological conditions because of requirements of long days and cold tolerance. The objectives of this study were to use microsatellites to evaluate level of polymorphism of a representative sample of this collection and determine its genetic diversity and relationships with cultivated germplasm from different geographical origin. A total of 249 genotypes were analyzed with 30 selected polymorphic microsatellites. Total number of alleles scored across 249 genotypes was 183 with an overall mean of 6.1 alleles per locus, ranging 2-14. The mean major allele (most common) frequency was 0.61 and mean minor allele frequency was 0.028. The overall mean gene diversity across 30 SSR loci was 0.52. Mean heterozygosity was 0.01, and mean polymorphism information content (PIC) value was 0.47. The accessions were organized by structure analysis into three main groups and revealed a fairly consistent genetic relationship with dendrogram and Principal Coordinates Analysis (PCoA). The temperate japonica accessions can be further subdivided into three subpopulations where long and short Chilean varieties were grouped into different clusters. The three populations showed different level of admixture, admixture probably due to previous breeding work through years. Results indicate that polymorphism levels of Chilean rice temperate japonica collection has similar magnitude as temperate japonica germplasm reported in the literature.

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Section: Introductionmentioning

confidence: 99%

Assessment of the genetic diversity and population structure in temperate japonica rice germplasm used in breeding in Chile, with SSR markers

Becerra

Paredes

Ferreira

et al. 2017

Chilean J. Agric. Res.

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“…(Garland et al 1999;. The SSR markers are particularly suitable for evaluating genetic diversity and relationships among plant species, populations, or individuals Kuttubuddin et al 2015); studying rice germplasm for either conservation or utilization (Sharma et al 2007) and marker-assisted selection breeding (Rani and Adilakshmi 2011). SSR markers have been exploited commendably to map QTLs associated with salt tolerance in rice (Lang et al 2001;Singh et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Assessment of genetic diversity of Saltol QTL among the rice (Oryza sativa L.) genotypes

Ganie

Borgohain

Kritika

et al. 2016

Physiol Mol Biol Plants

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Eight Saltol quantitative trait locus (QTL) linked simple sequence repeat (SSR) markers of rice (Oryza sativa L.) were used to study the polymorphism of this QTL in 142 diverse rice genotypes that comprised salt tolerant as well as sensitive genotypes. The SSR profiles of the eight markers generated 99 alleles including 20rare alleles and 16 null alleles. RM8094 showed the highest number (13) of alleles followed by RM3412 (12), RM562 (11), RM493 (9) and RM1287 (8) while as, RM10764 and RM10745 showed the lowest number (6) of alleles. Based on the highest number of alleles and PIC value (0.991), we identified RM8094 as suitable marker for discerning salt tolerant genotypes from the sensitive ones. Based upon the haplotype analysis using FL478 as a reference (salt tolerant genotypes containing Saltol QTL), we short listed 68 rice genotypes that may have at least one allele of FL478 haplotype. Further study may confirm that some of these genotypes might have Saltol QTL and can be used as alternative donors in salt tolerant rice breeding programmes.

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“…The SSR markers are particularly suitable for evaluating genetic diversity and relationships among plant species, populations, or individuals (Kostova et al 2006;Tu et al 2007), studying rice germplasm for either conservation or utilization (Sharma et al 2007); marker-assisted selection breeding (Perez-Sackett et al 2011;Rani and Adilakshmi 2011); cultivar identification; hybrid purity analysis and gene mapping studies (Weising et al 1997;Altaf-Khan et al 2006;Rajendrakumar et al 2009;Sarao et al 2010). …”

Section: Introductionmentioning

confidence: 99%

Molecular Characterization and Genetic Diversity Analysis of Rice (Oryza sativaL.) Using SSR Markers

Rahmana

Rasaulc

Hossain

et al. 2012

Journal of Crop Improvement

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Assessment of genetic diversity and molecular characterization among elite rice varieties of (RM10713, RM279, RM424, RM6266, RM1155, RM289, RM20224 and RM5371) were identified that produced specific alleles only in the aromatic rice varieties and were useful for varietal identification and DNA fingerprinting of these aromatic rice varieties.The findings of this study sould be useful for varietal identification and could help in background selection in backcross breeding programs.

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Genetic Analysis of Blast Resistance in Rice with Simple Sequence Repeats (SSR)

Cited by 9 publications

References 9 publications

Assessment of the genetic diversity and population structure in temperate japonica rice germplasm used in breeding in Chile, with SSR markers

Assessment of the genetic diversity and population structure in temperate japonica rice germplasm used in breeding in Chile, with SSR markers

Assessment of genetic diversity of Saltol QTL among the rice (Oryza sativa L.) genotypes

Molecular Characterization and Genetic Diversity Analysis of Rice (Oryza sativaL.) Using SSR Markers

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