Geographic distribution of variation in quantitative traits in a world lentil collection

Erskine, William; Adham, Y; Holly, L.

doi:10.1007/bf00037901

Cited by 99 publications

(78 citation statements)

References 5 publications

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“…However, existence of genetic diversity among the present genotypes found to be quite high compared to previous studies that showed high genetic similarity among the accessions originating from South Asia (Agrawal and Katiyar 2008;Hamwieh et al 2009;Datta et al 2011). The limited genetic variability observed in the Indian lentils was probably due to the founder effect, restriction brought to genetic variability in the indigenous gene pool, which is further narrowing the gene pool due to the adaptation in specialized environments in south Asia (Erskine et al 1989(Erskine et al , 1998Ferguson et al 1998;Kumar et al 2004). In order to identify the reason of high level of genetic diversity among the present genotypes, we have gone through the pedigree of these genotypes.…”

Section: Assessment Of Diversification Of Indian Gene Poolcontrasting

confidence: 67%

Diversification of indigenous gene- pool by using exotic germplasm in lentil (Lens culinaris Medikus subsp. culinaris)

Kumar

Srivastva

Singh

et al. 2013

Physiol Mol Biol Plants

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Genetic diversity was studied among 21 accessions of lentil using SSR markers and morphological traits in order to assess the diversification of Indian gene-pool of lentil through introgression of exotic genes and introduction of germplasm. Among these , 16 genotypes either had 'Precoz' gene, an Argentine line in their pedigree or genes from introduced lines from ICARDA. Sixty five SSR markers and eight phenotypic traits were used to analyse the level of genetic diversity in these genotypes. Forty three SSR markers (66 %) were polymorphic and generated a total of 177 alleles with an average of 4.1 alleles per SSR marker. Alleles per marker ranged from 2 to 6. The polymorphic information content ranged 0.33 to 0.80 with an average of 0.57, suggesting that SSR markers are highly polymorphic among the studied genotypes. Genetic dissimilarity based a dendrogram grouped these accessions into two main clusters (cluster I and cluster II) and it ranged 33 % to 71 %, suggesting high level of genetic diversity among the genotypes. First three components of PCA based morphological traits explained higher variance (95.6 %) compared to PCA components based on SSR markers (42.7 %) of total genetic variance. Thus, more diversity was observed for morphological traits and genotypes in each cluster and sub-cluster showed a range of variability for seed size, earliness, pods/plant and plant height. Molecular and phenotypic diversity analysis thus suggested that use of germplasm of exotic lines have diversified the genetic base of lentil germplasm in India. This diversified gene-pool will be very useful in the development of improved varieties of lentil in order to address the effect of climate change, to adapt in new cropping systems niches such as mixed cropping, relay cropping, etc. and to meet consumers' preference.

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Section: Assessment Of Diversification Of Indian Gene Poolcontrasting

confidence: 67%

Diversification of indigenous gene- pool by using exotic germplasm in lentil (Lens culinaris Medikus subsp. culinaris)

Kumar

Srivastva

Singh

et al. 2013

Physiol Mol Biol Plants

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“…Several lentil core collections have been assembled (Erskine and Muehlbauer, 1991;Simon and Hannan, 1995;Furman, 2006;Hamwieh et al, 2009). 4,036 ICARDA accessions were evaluated for quantitative characteristics of time to flower, time to maturity, plant height, and lowest pod height (Erskine et al, 1989). Another study examined the relationship between the yield of seed and straw of 3,586 ICARDA accessions (Erskine, 1983).…”

Section: Crop Lentil (Lens Culinaris Medik)mentioning

confidence: 99%

Legume Crops Phylogeny and Genetic Diversity for Science and Breeding

Smýkal

Coyne

Ambrose

et al. 2014

Critical Reviews in Plant Sciences

273

189

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“…Lentil shows high genetic variation both in morphological and molecular level. Many researchers have reported on genetic variation in lentil about morphological variation; isozyme variation and seed storage protein level variation as well [8][9][10][11] . Traditional breeding is very much important for crop improvement but they proved to be slow in targeting complex trait like grain yield, grain quality, and drought or salinity tolerance.…”

Section: Introductionmentioning

confidence: 99%

Polymorphism Assessment of Six Lentil (Lens culinaris Medik.) Genotypes Using Isozyme

Madina¹,

Rahman²,

Deb³

et al. 2015

Journal of the Chosun Natural Science

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Lentil (Lens culinaris Medik.) is one of the important legumes and cheaper source of protein in Bangladesh that displays great biological diversity. Isozyme, one of the most important protein markers to detect genetic polymorphism in lentil, whereas we considered thirteen-isozyme in six varieties viz., BARI masur-1, BARI masur-2, BARI masur-3, BARI masur-4, BARI masur-5 and BARI masur-6. The highest polymorphism was found in tyrosinase isozyme system. UPGMA analysis revealed that the highest similarity between BARI masur-5 and BARI masur-6 whereas, the highest genetic distance between BARI masur-1 and BARI masur-5 reflecting higher intervarietal variation. Principal component analysis (PCA) also revealed the similar results that of unweighted pair group method with arithmetic mean (UPGMA). The first, second and third PCs contributed 81.58%, 11.19% and 4.94% variation respectively, with cumulative variation of the first three PCs was 75.45%. Consequently, Isozyme could clearly assed the genetic diversity at intervarietal levels and these two varieties can be considered as valuable gene resources for future breeding and conservation programs.

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Geographic distribution of variation in quantitative traits in a world lentil collection

Cited by 99 publications

References 5 publications

Diversification of indigenous gene- pool by using exotic germplasm in lentil (Lens culinaris Medikus subsp. culinaris)

Diversification of indigenous gene- pool by using exotic germplasm in lentil (Lens culinaris Medikus subsp. culinaris)

Legume Crops Phylogeny and Genetic Diversity for Science and Breeding

Polymorphism Assessment of Six Lentil (Lens culinaris Medik.) Genotypes Using Isozyme

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