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首页> 外文期刊>Genetic Resources and Crop Evolution >Characterization of Prosopis cineraria (L.) Druce germplasm with suitable horticultural traits from the hot arid region of Rajasthan, India
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Characterization of Prosopis cineraria (L.) Druce germplasm with suitable horticultural traits from the hot arid region of Rajasthan, India

机译：来自印度拉贾斯坦邦热干旱地区的具有适宜园艺性状的柠檬枯萎菌种质的表征

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Sixteen germplasm accessions of Prosopis cineraria with suitable horticultural traits were identified from north-western Rajasthan, India, propagated clonally by budding on seedling rootstock and maintained in the field gene bank. Morphological characterization of seven-year-old trees of these accessions by 21 traits indicated a lot of variation among the accessions tested. Higher number of flowers per raceme was found in accession CIAH/K2, higher width of ripened pod in CIAH/K5, higher number of seeds per pod in CIAH/K12 and a higher weight of seed per pod in CIAH/K6. Overall, CIAH/K16 was found to be a superior genotype for most of the useful traits. High significant positive correlation was obtained with traits useful for horticultural values. Out of 62 random decamer primers for random amplification (RAPD) reaction, and four minisatellite core sequence for direct amplification of minisatellite DNA (DAMD) screened with these accessions, 12 RAPD and 2 DAMD primers were found polymorphic. Average polymorphism resolved by these markers among the accessions was 93.2%. Genetic diversity revealed by Jaccard's co-efficient was between 0.11 and 0.77, and four major clusters were identified among these accessions by phylogenetic analysis using NTSYSpc-2.02e software. This study shows the existence of high genetic diversity within these accessions.
机译：从印度西北拉贾斯坦邦鉴定出十六种具有适宜园艺性状的香茅Prosopis cineraria种质，通过萌芽在苗木砧木上无性繁殖，并保存在田间基因库中。这些种质的7年生树木的21个性状的形态特征表明，测试的种质之间存在很大差异。品种CIAH / K2中每个总状花序的花数更多，CIAH / K5中成熟的豆荚的宽度更大，CIAH / K12中每个豆荚的种子数更多，而CIAH / K6中每个豆荚的种子重量更大。总体而言，发现CIAH / K16是大多数有用性状的优良基因型。与园艺价值相关的性状具有很高的显着正相关性。在用于随机扩增（RAPD）反应的62个随机decamer引物和用这些种质筛选出的用于直接扩增小卫星DNA（DAMD）的四个小卫星核心序列中，发现12个RAPD和2个DAMD引物是多态的。这些标记在种质中解析出的平均多态性为93.2％。 Jaccard系数显示的遗传多样性在0.11到0.77之间，并使用NTSYSpc-2.02e软件通过系统发育分析在这些种质中鉴定出四个主要簇。这项研究表明这些种质中存在高度遗传多样性。

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