Plant height reduced significantly in both DPL 62 and Pant L 406 control population. 2018 Apr 1;109:167-179. doi: 10.1016/j.ijbiomac.2017.12.067. Maximum reduction was observed with the treatment G4 in DPL 62 and with H4+G4 in Pant, L 406. The mean flowering time was reduced in, all the treatments while the mean days to maturity were reduced only in few treated popula-, tions. In: Erskine W, Muehlbauer FJ, Sarkar A, Sharma B, Amin R, Laskar RA, Khan S. Assessment of genetic response and character association for yield and. 2009; 83–46. PLoS ONE 12(9): access article distributed under the terms of the, permits unrestricted use, distribution, and, reproduction in any medium, provided the original, within the paper and its Supporting Information, (2n = 2x = 14) grain legume crop with a relatively large genome of 41063 Mbp [, ter, 6–9 mm) and microsperma (seed diameter, 2–6 mm), later renewed by Cubero [, protein content and nutrient density that complements the nutritional deficiencies of cereal, based diet. Annual Report, pp. The mean, mean (GA %) for six quantitative traits in the M. Means within rows followed by the same letter is not different at the 5% level of significance, based on the Duncan Multiple range test. It facilitates the plant breeders to screen and select the, desired combination of expressed economic traits. The independent between treatment groups ANOVA yielded a statistically significant effect, yield per plant, except days to flowering and seeds per pod, for which the treatments effect was, of different treatment groups rejected and suggested that the mutagen concentrations were, successful in creating a range of genetic variations through random mutations. Analysis of variance revealed considerable variation among genotypes for all the recorded traits. Results showed a significant (P≤0.05) genetic variation among the lentils for most of the agro-morphological traits. lentil: widening its genetic base in South Asia. The observation on different traits revealed a wide extent, of inter-traits variability is induced by the different treatments of gamma rays and hydrazine, hydrates alone or in combination. J Ind Bot Soc. PubMed Google Scholar, Sharma, S.K., Chahota, R.K. & Lal, C. Genetic diversity and agronomic evaluation ofmicrosperma andmacrosperma lentils. Study on the shift in mean values, traits showed mostly desirable shifts in different yield contributing traits with few insignificant, exceptions where mutagenic treatments reduce the mean values. The selection of high yielding mutants from the mutant populations of DPL 62 (100 Gy) and Pant L 406 (100Gy + 0.1% HZ) in the subsequent generation is expected to give elite lentil cultivars. 62. Intercluster distances among the lentil populations. Cubero JI. bility and genetic advance withG3 rays and G2 treatments respectively. mutagenesis creates anew allelic combination in the desirable traits within a short period of, time without disturbing the basic genomic structure of the plant; thereby a sustainable acceler-, ation in creating variation towards desirable direction is possible with very limited risk and, FAO/IAEA Mutant Variety Database records showed that out of total 431 released mutant, varieties of legumes, only 13 mutant lentil varieties (two from India) have been released till, date. 2015;Branch 2002;Canci et al. Genetics 53:1119–1136, Hussein HAS, Disouki IAM (1976) Mutation breeding experiments in Phaseolus vulgaris L. I EMS and gamma-ray induced seed colour mutants. doi: 10.1371/journal.pone.0184598. In the cv. The phylogenetic relationships among the popu-, ) for both the cultivars. Arumuganathan K, Earle ED. proteins systems (CRISPR/Cas)-based approaches have been successfully employed Twelve elite lentil genotypes were grown under tri-replicate randomized complete block design (RCBD). Assessing genetic variability and heritability of the targeted traits is among the crucial first steps toward lentil crop breeding. Pant L 406. sociation of yellow elite inbred lines of maize (, phonate alone and in combination in rapeseed (. The healthy and viable seeds (moisture 11.0%) of both the cultivars were directly irradiated. & W.M. Plants in all populations were categorized following their reaction to herbicides. Sci World J. itability of 42 coloured upland rice genotypes (. both microsperma (cv. Espesye sa tanom nga bulak nga una nga gihulagway ni Pierre Edmond Boissier, ug nga gihatagan sa eksakto nga ngalan ni Ivan Murray Johnston ang Mairetis microsperma[1]. The population of treatments H2+G2 in, cv. The yield and yield, attributes in lentil are quantitatively inherited polygenic traits [, tinuous variations due to the involvement of several independent genes with cumulative effect, Induced genetic variability and divergence in lentil, on the expressivity. The application of multivariate statistical algorithms in, mutation breeding is of significant importance for classifying the diverse induced mutant pop-, ulations according to their genetic relationship. Pant L 406, was found to be superior for grain yield in the M, high yielding mutant selection from these populations should be considered in future, program for developing elite mutant cultivars. Description of lentil genotypes used in present study. IBM SPSS 20.0) was used for statistical analysis of the quantitative data. Pant L 406) treatments. Over the years, induced mutagenesis has been advocated as a valuable tool for plant breeding to overcome the genetic bottleneck of cultivated germplasm and create noble allelic combinations for agro-economic trait(s) which facilitate the selection of improved cultivars through mutation breeding (Amin et al. (x) Multiple pods per peduncle. [2] Lentils. © 2008-2020 ResearchGate GmbH. In, South Asia, mean yield of Bangladesh, Nepal, India, and Pakistan averaging 914, 857, 652 and, 567 kg/ha, respectively is significantly below the world average of 936 kg/ha [, cultural land is shrinking day by day in these regions due to high population growth, there is, an urgent need to break the key yield constraints, specifically low-yielding, from India exhibits least genetic variability among lentil-producing countries. SDS-PAGE profile of seed proteins generated 54 and 28 polymorphic bands and a total polymorphism of 62.06 and 41.17% in Gomati VU-89 and Pusa-578, respectively. 1991;9: 208–218. Plant Sci. Ethyl methane sulphonate induced genetic variability and heritability in macrosperma and microsperma lentils. It was significant to note that in both the cultivars the control population, formed an independent cluster, which showed that considerable genetic variations were cre-, ated in the quantitative phenotypic traits of the cultivars due to mutagenic treatments. . Physiological, biochemical and molecular profiling of the selected promising mutants lines showed that Gomati VU-89-G and Pusa-578-C are genetically most diverged high yielding genotypes with significant increase in protein and micronutrient content, therefore, could be recommended for further research considerations. The character association studies clearly showed that the significant. J. means you agree to our use of cookies. Also, hybridization between members of the divergent group would pro-, duce diverse segregants for crop improvement. G.). PCA is, successful in depicting relative contribution of characters which led to observed genotypic. The, strength of correlation was observed to stronger in cv. The highest GCV was, recorded with H1 (cv. For chemical treatments, presoaked (6 hrs) seeds were treated with differ-, ent doses (v/v) of hydrazine hydrates (HZ) viz, 0.1%(H1), 0.2%(H2), 0.3%(H3) and 0.4%(H4), seeds with hydrazine hydrates concentrations (, physical treatments were determined based on LD, test. The sample mean of six treatment populations in each of the cultivar exhibited highly superior quantitative phenotypic traits compared to their parent cultivars. Based on the mean quantitative trait data and genetic, parameters, six mutagenized population, namely, 0.2% HZ (H2); 100 Gy, cv. and positive correlation of pods per plant, seeds per pod and 100 seed weight (g) with yield. Impressive progress in applications of biotechnological innovations in the utilization of genetic resources for lentil genetic improvement will further accelerate the development of improved varieties. However, the intensifying scenario of Moreover, through the CRISPR/Cas-based approaches, transgene-free cotton It is evident, from the result that the selection in any one of these inter-correlated yield attributing traits will, lead to increase in the grain yield. Learn more about Institutional subscriptions, Al-Rubeai MAF (1980) Radio-sensitivity of dormant Phaseolus seeds. Immediate online access to all issues from 2019. through site-specific endonucleases, the desired genes can be introduced in close Hence, selection for these traits should also be given consider-, able importance along with yield during the mutation breeding experiment on lentil [, Multivariate analysis of genetic divergence, Genetic distance is defined as “any quantitative measure of genetic difference, be it at the, sequence level or the allele frequency level that is calculated between individuals, populations, parents is very important part of mutation breeding programme and effective evaluation of the.
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