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Abstract：
Domesticated lentil has a relatively narrow genetic base globally and most released varieties are susceptible to severe biotic and abiotic stresses. The crop wild relatives could provide new traits of interest for tailoring novel germplasm and cultivated lentil improvement. The primary objective of this study was to evaluate wild lentil accessions for identification of economically viable agro-morphological traits and resistance against major biotic stresses. The study has revealed substantial variations in seed yield and its important component characters. Further, the diversity analysis of wild accessions showed two major clusters which were bifurcated into sub-clusters, thereby suggesting their wider genetic divergence. However, principal component analysis exhibited that seed yield plant-1, number of seeds plant-1, number of pods plant-1, harvest index and biological yield plant-1 contributed significantly to the total genetic variation assessed in wild lentil taxa. Moreover, some of the wild accessions collected from Syria and Turkey regions showed resistance against more than one disease indicating rich diversity of lentil genetic resources. The identification of most promising genotypes carrying resistance against major biotic stresses could be utilized in the cultivated or susceptible varieties of lentil for enhancing genetic gains. The study has also identified some trait specific accessions, which could also be taken into the consideration while planning distant hybridization in lentil.
摘要：
驯化小扁豆在全球范围内具有相对狭窄的遗传基础，并且大多数释放的品种易受严重的生物和非生物胁迫的影响。作物野生近缘种可以为剪裁新种质和栽培小扁豆改良提供新的感兴趣性状。这项研究的主要目的是评估野生扁豆种质，以鉴定经济上可行的农业形态性状和对主要生物胁迫的抗性。研究表明，种子产量及其重要组成部分特征存在很大差异。Further,野生种质的多样性分析表明，两个主要的簇分为子簇，从而表明他们更广泛的遗传分歧。然而,主成分分析表明，种子产量植物1，种子数量植物1，豆荚数量植物1，收获指数和生物产量植物1对野生小扁豆分类群评估的总遗传变异做出了显着贡献。此外，从叙利亚和土耳其地区收集的一些野生种质显示出对一种以上疾病的抵抗力，表明扁豆遗传资源具有丰富的多样性。鉴定对主要生物胁迫具有抗性的最有希望的基因型可用于小扁豆的栽培或易感品种，以增强遗传增益。该研究还确定了一些特定特征的种质，在计划小扁豆的远距离杂交时也可以考虑这一点。
