Broadening the genetic base of lentil cultivars through inter‐sub‐specific and interspecific crosses of <i><scp>L</scp>ens</i> taxa

Singh, Mohar; Rana, M. K.; Kumar, Krishna; Bisht, I. S.; Dutta, M.; Gautam, N. K.; Sarker, Ashutosh; Bansal, Kailash C.

doi:10.1111/pbr.12089

Cited by 37 publications

(25 citation statements)

References 22 publications

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“…wild species including L. culinaris ssp. orientalis , odemensis , lamottei and ervoides) has substantially exhibited higher variations for seed yield and its attributing traits in segregating F 2 generation indicating transgressive segregation (Gupta and Sharma 2007;Singh et al 2013). …”

Section: Assessment Of Diversification Of Indian Gene Poolmentioning

confidence: 99%

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 Poolmentioning

confidence: 99%

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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“…The incorporation of potential gene sources from L. ervoides is highly desirable, because they possess genes for adaptive variation and Fusarium wilt resistance and may further produce other higher yielding derivatives upon hybridization with cultigens, other than we already achieved in the current study. Furthermore, the common better performing F 5 recombinant lines selected from Delhi and Shimla centers reveals their wider adaptation and potential for developing high yielding cultivars of lentil and these lines can also be utilized as donors for further cross- breeding purposes in lentil genetic improvement (Singh et al, 2013; Tullu et al, 2013). The review of literature pertinent on widening the genetic base of cultivated lentil in relation to transferring resistance from wild Lens species against anthracnose (Fiala, 2006; Tullu et al, 2006; Fiala et al, 2009; Vail and Vandenberg, 2011; Vail et al, 2012), ascochyta blight (Tullu et al, 2010), Stemphylium blight (Podder et al, 2013) and yield attributes (Gupta and Sharma, 2006, 2007; Singh et al, 2013) have been successfully attempted.…”

Section: Discussionmentioning

confidence: 99%

Comparative Agronomic Performance and Reaction to Fusarium wilt of Lens culinaris × L. orientalis and L. culinaris × L. ervoides derivatives

et al. 2017

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The development of transgressive phenotype in the segregating populations has been speculated to contribute to niche divergence of hybrid lineages, which occurs most frequently at larger genetic distances. Wild Lens species are considered to be more resistant against major biotic and abiotic stresses than that of the cultivated species. In the present study, we assessed the comparative agronomic performance of lentil (Lens culinaris subsp. culinaris) inter-sub-specific (L. culinaris subsp. orientalis) and interspecific (L. ervoides) derivatives, also discussed its probable basis of occurrence. The F3, F4, and F5 inter sub-specific and interspecific populations of ILL8006 × ILWL62 and ILL10829 × ILWL30, respectively revealed a substantial range of variation for majority of agro-morphological traits as reflected by the range, mean and coefficient of variation. A high level of fruitful heterosis was also observed in F3 and F4 progeny for important traits of interest. Phenotypic coefficient of variation (PCV) was higher in magnitude than genotypic coefficient of variation (GCV) in all generations for several quantitative characters. The results showed high heritability estimates for majority of traits in conjunction with low to high genetic advance in F3 and F4 generations. Further, F5 progeny of ILL10829 × ILWL30, manifested resistant disease reaction for fifteen recombinant inbred lines (RILs) against (Fusarium oxysporum f. sp. lentis (Vasd. Srin.) Gord.). The multilocation agronomic evaluation of both crosses showed better results for earliness, desirable seed yield and Fusarium wilt resistance under two agro-ecological regions of north-western India. These better performing recombinants of ILL8006 × ILWL62 and ILL10829 × ILWL30 can be advanced for further genetic improvement and developing high yielding disease resistant cultivars of lentil.

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“…As has already been discussed previously, intraspecifi c crosses between cultivated lentils produce viable descendants (Malhorta et al 1978 ;Solh et al 1980 ;Mera and Erskine 1982 ;Kumar and Singh 1998 ;Fratini et al 2004 ;Singh et al 2013b ). With regard to inter-subspecifi c hybrids of lentil, it has been reported that the domesticated lentil is readily crossable with subspecies orientalis (Ladizinsky 1979 ;Muehlbauer et al 1989 ;Vandenberg and Slinkard 1989 ;Vaillancourt and Slinkard 1992 ;Fratini et al 2004 ), although the fertility of the hybrids depends on the chromosome arrangement of the wild parent (Ladizinsky 1979 ;Ladizinsky et al 1984 ).…”

Section: Interspecifi C Hybridization In Crop Speciesmentioning

confidence: 92%

Lentil

Fratini¹,

Vega²,

Sánchez³

2014

Broadening the Genetic Base of Grain Legumes

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Among the cool season legume crops, lentil production has displayed the greatest increase, while cropping of many other grain legumes is actually in decline. This increase is most likely due to a convenient fast cooking coupled to a saving of fuel and time -dehulled lentils cook even faster than milled rice. Worldwide lentil consumption has augmented more than twice the rate of human population growth, with lentil consumption over the past 40 years having increased more than any other food crop. Therefore, continued genetic improvement of lentil is essential in all production regions; nevertheless, without access to and use of diverse germplasm, prospects for yield genetic gain in lentil may be diffi cult to accomplish. Wild Lens accessions represent less than 1 % of the world germplasm collection of this genus, this small fraction likely representing the greatest untapped pool of genetic variation in lentil. Germplasm evaluation together with a successful and targeted hybridization allows for an effi cient breeding and selection of varieties adapted to specifi c environments. The aim of the present chapter is to describe the evolutionary aspects of lentil and assess the gene pool and fl ow for crop improvement, considering levels of diversity and agronomic traits of importance, with emphasis placed on wild species and interspecifi c Lens hybridization, to fi nally conclude with molecular aspects and future prospects of lentil breeding.

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Broadening the genetic base of lentil cultivars through inter‐sub‐specific and interspecific crosses of Lens taxa

Cited by 37 publications

References 22 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)

Comparative Agronomic Performance and Reaction to Fusarium wilt of Lens culinaris × L. orientalis and L. culinaris × L. ervoides derivatives

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