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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Genetic diversity in unique indigenous mango accessions (Appemidi) of the Western Ghats for certain fruit characteristics.
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Genetic diversity in unique indigenous mango accessions (Appemidi) of the Western Ghats for certain fruit characteristics.

机译：西高止山脉独特的芒果原种（Appemidi）的某些水果特性的遗传多样性。

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摘要

Mango is one of the choicest fruit crops of the tropical and subtropical regions in the world. Utilization of the conserved germplasm in breeding programmes requires precise information on the genetic relationships between the accessions. Considering the difficulties involved in the traditional divergence studies based on morphological characterization, microsatellites were successfully used for genetic diversity analysis of the indigenous 'Appemidi' type. Also, the major compounds that contribute to the unique aroma of these types were estimated. The materials used in the study consisted of 43 accessions and 14 SSRs developed at the Indian Institute of Horticultural Research, Bangalore. Analysis of sap volatiles was done using GCMS fitted with a DB-5 MS column using helium as the carrier gas. The analysis of 211 bands detected by the 14 Simple Sequence Repeats (SSRs) markers showed unambiguous discrimination of the 43 mango genotypes. The dendrogram resulted in the grouping of accessions into two major clusters, viz. cluster I with highly acidic types and cluster II with less acidic and high TSS group. The aroma of pickle type of mangoes is due to totally different type of terpenes as well as a completely different combination of monoterpenes.
机译：芒果是世界热带和亚热带地区精选的水果作物之一。在育种计划中利用保守的种质需要有关种质之间遗传关系的精确信息。考虑到传统的基于形态表征的发散性研究涉及的困难，微卫星已成功用于本地“ Appemidi”类型的遗传多样性分析。此外，估计了有助于这些类型独特香气的主要化合物。研究中使用的材料包括在班加罗尔的印度园艺研究所开发的43种材料和14种SSR。使用装有DB-5 MS色谱柱的GCMS（使用氦气作为载气）对汁液挥发物进行分析。通过14个简单序列重复（SSR）标记检测到的211条带的分析显示了对43个芒果基因型的明确区分。树状图将种质分为两个主要类，即。高酸性类型的簇I和低酸性和高TSS组的簇II。芒果的咸味类型是由于萜烯的类型完全不同以及单萜类化合物的完全不同所致。

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