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首页> 外文期刊>Cogent Food & Agriculture >Assessment of genetic response and character association for yield and yield components in Lentil (Lens culinaris L.) population developed through chemical mutagenesis
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Assessment of genetic response and character association for yield and yield components in Lentil (Lens culinaris L.) population developed through chemical mutagenesis

机译：通过化学诱变开发的扁豆（Lens culinaris L.）种群的产量和产量组成的遗传响应和性状关联评估

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Genetic variation is imperative to any plant improvement program. Therefore, this study was primarily based on this aspect of inducing desirable genetic variation for enhancement of the available lentil genetic diversity. The lentil seeds were treated with methyl methanesulfonate (MMS) alone and in combination with dimethyl sulfoxide (DMSO) for inducing polygenic variation as well as determining the impact of DMSO on mutagenecity of MMS. Comparative observations were recorded for bio-physiological damages, morphological variation, and quantitative traits to assess the genetic response of the lentil cultivar L 4076 toward the different concentrations of chemicals. Significant statistics suggested that the DMSO interfere with the extent of mutagenecity of MMS in lentil which could be attributed to either synergistic action of both or variation in MMS uptake. The outcome of mutagenesis on the character association study revealed that mutagenic treatments can modify significantly the manner of association between any two traits in lentil. The moderate doses of MMS in combination with 2% DMSO showed notable diminution in the biological damages while accelerating the rate of desirable high-yielding mutants had proved to be economical. The segregate of the selected mutants in future generations will definitely contribute to the improvement of Lentil genotype.
机译：遗传变异对于任何植物改良计划都是必不可少的。因此，本研究主要基于诱导理想的遗传变异以增强可利用的扁豆遗传多样性的这一方面。扁豆种子分别用甲磺酸甲酯（MMS）和二甲基亚砜（DMSO）处理，以诱导多基因变异，并确定DMSO对MMS诱变性的影响。记录比较观察的生物生理损伤，形态变异和数量性状，以评估小扁豆L 4076对不同浓度化学物质的遗传反应。大量统计数据表明，DMSO干扰了小扁豆中MMS的诱变程度，这可能是由于二者的协同作用或MMS摄取的变化所致。性状关联研究的诱变结果表明，诱变处理可以显着改变扁豆中任何两个性状之间的关联方式。中等剂量的MMS与2％DMS​​O的结合显示出明显的生物学损伤减小，同时已证明提高所需高产突变体的速率是经济的。选定的突变体在未来世代的分离必将有助于改善扁豆基因型。

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