DNA Fingerprinting and Diversity Analysis of BRRI Hybrid Varieties and their Corresponding Parents

Islam, Md. Monirul; Hoque, M. E.; Rabbi, Smha; Ali, Md. Showkat

doi:10.3329/ptcb.v21i2.10242

Cited by 5 publications

(7 citation statements)

References 10 publications

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“…In the present study higher PIC values (varied from 0.76 to 0.94) were observed than the earlier works [17][18] but are quite comparable to other studies [19][20][21]. High PIC values can be due to the fact that rice accessions used in this study were collected from diverse regions of Bangladesh so that more variability might exist in such population.…”

Section: Discussionsupporting

confidence: 58%

Analysis of Genetic Diversity and Population Structure of Some Bangladeshi Rice Landraces and HYV

Hassan¹,

Shamsuddin²,

Islam³

et al. 2012

J. Sci. Res.

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Information on the patterns of genetic variation and population structure is essential for rational use and efficient management of germplasms. It helps in monitoring germplasm and can also be used to predict potential genetic gains. Therefore, in the present study genetic diversity of 59 rice genotypes were assessed using 8 simple sequence repeat (SSR) primers. By the DNA profiling, a total of 114 alleles were detected. Allele number per/locus ranged from 9 to 27, with an average of 14.25. Average polymorphism information content (PIC) value was 0.857 with lowest 0.767 to highest 0.857. Mean gene diversity over all SSR loci was 0.870 with a range from 0.792 to 0.948. Fst values for each locus varied from 0.071 to 0.262. Genetic distance between the variety pair ranged from 0.33 to 1.0. The lowest genetic distance was found between Rajashili and Kumragori (2). Cluster and principal coordinate analysis (PCoA) analysis revealed similar pattern of variation. Marker RM11300 was found most polymorphic and robust among the accessions and can be widely used for rice germplasm characterization. The exclusive variability and unique feature of germplasm found in this study can be a gateway for both domestic and global rice improvement.

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Section: Discussionsupporting

confidence: 58%

Analysis of Genetic Diversity and Population Structure of Some Bangladeshi Rice Landraces and HYV

Hassan¹,

Shamsuddin²,

Islam³

et al. 2012

J. Sci. Res.

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“…Morphological characterization has been efficient until now for identifying genetic material; however, this method has become inefficient for differentiation of commercial varieties (Rahman et al, 2009) because of the greater uniformity in morphological traits of the commercial varieties and the low number of morphological traits available (Rahman et al, 2009;2010;Islam et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Simple sequence repeat (SSR) markers have been widely used in genetic diversity studies and to identify rice varieties (McCouch et al, 2002;Garris et al, 2004;Lu et al, 2005;Chuang et al, 2011;Islam et al, 2011;Kanawapee et al, 2011). In rice, genomic SSRs form part of coding or noncoding regions of the genome (Varshney et al, 2005) and they are also called neutral or anonymous because they do not consider the degree of phenotypic expression of the sequences (Gupta and Rustgi, 2004).…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity, identification, and certification of Chilean rice varieties using molecular markers

Becerra

Paredes

Gutiérrez

et al. 2015

Chilean J. Agric. Res.

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It takes approximately 14 yr to produce a new rice (Oryza sativa L.) variety, that is, from initial hybridization to its commercial release. Currently, new varieties are identified based on morphological descriptors, which have been efficient over time. However, due to the main constraints on seed type impose to other breeding objectives and the pressure of continuous release of varieties, high degree of parentage, and genetic and morphological uniformity has been observed in the breeding populations. The objectives of this study were: to determine the genetic variability of Chilean and foreign commercial rice varieties, and determine, identify, and certify the genetic relationships among varieties, using simple sequence repeat (SSR) markers. A total of 16 commercial varieties, some of them closely related, were included in the study, which were genetically analyzed using 54 microsatellites. The 54 microsatellite loci allowed the discrimination among the 16 varieties. The number of alleles ranged between 2 and 8 with a mean of 3.54 alleles per locus, while the polymorphism information content (PIC) presented a mean of 0.44. The genetic distance and diversity parameters between pairs of varieties indicate a limited diversity among these genotypes. The cluster analysis indicated that varieties were grouped according to their grain type and pedigree. Results demonstrate that the identification and certification of varieties using microsatellite markers could be a good complement to existing agro-morphological data when varieties are closed related.

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“…All these findings indicated that the rice accessions used in the present study had a broad genetic diversity. The average PIC values reported were 0.57 (Ravi et al 2003), 0.57 (Zeng 2004), 0.66 (Zhao et al 2009), 0.46 (Seetharam et al 2009), 0.53 (Pervaiz et al 2010), 0.603 (Islam et al 2011), 0.57 (Shamim et al 2015), 0.665 (Yadav et al 2015), and 0.47 (Anh et al 2018), respectively. These values were comparatively higher than the earlier reports, which might be due to the high diversity of rice accessions used in their studies or the use of highly polymorphic markers.…”

Section: Resultsmentioning

confidence: 98%

“…A range of 2-4 alleles per locus was reported (Gour et al 2017; Ming et al 2015; Mvuyekure et al 2018; Verma et al 2019). The average number of alleles was 6.72 (Ravi et al 2003), 4.90 (Zeng 2004), 4.50 (Pervaiz et al 2010), 8.00 (Zhao et al 2009), 4.30 (Islam et al 2011), 7.40 (Shamim et al 2015) and 6.40 (Watanabe et al 2016), which might be due to the use of a more diverse set of rice accessions in their study or due to the use of highly polymorphic markers.…”

Section: Resultsmentioning

confidence: 99%

Characterization and Heterotic Grouping of Traditional Assam rice (Oryza sativaL.)

Kumar

Sarma

Hazarika

2021

Preprint

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Parents of heterotic hybrids are derived from different heterotic groups with high genetic divergence. Classification of traditional Assam rice germplasm in divergent pools will be advantageous to maximize the heterosis and thereby to ensure food security. In the present investigation, a group of 60 upland rice genotypes were characterized using 53 polymorphic simple sequence repeats (SSR) markers out of 83 molecular markers. The genetic divergence study using unweighted Neighbour-joining (UNJ) method clustered the 60 genotypes into 3 major clusters. The eleven most divergent genotypes identified were crossed in half diallel fashion to determine the mid-parent and better-parent heterosis values for the objective of heterotic grouping. No correlation between heterosis and genetic distance can be attributable to the use of a subset of markers not linked to yield or concerned. In genetic distance based heterotic grouping, the intra-group hybrids were recorded a higher frequency of crosses, grain yield per plant, specific combining ability effect, mid parent heterosis, better parent heterosis and standard parent heterosis value than those of inter-group hybrids. Overall, sn extensive choice of parents with attractive traits constellation leading to increased yield of the hybrids for much better complementation must be stressed along with a substantial hereditary distance for augmentation of yield heterosis.

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DNA Fingerprinting and Diversity Analysis of BRRI Hybrid Varieties and their Corresponding Parents

Cited by 5 publications

References 10 publications

Analysis of Genetic Diversity and Population Structure of Some Bangladeshi Rice Landraces and HYV

Analysis of Genetic Diversity and Population Structure of Some Bangladeshi Rice Landraces and HYV

Genetic diversity, identification, and certification of Chilean rice varieties using molecular markers

Characterization and Heterotic Grouping of Traditional Assam rice (Oryza sativaL.)

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