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Genetic diversity of early-maturing seedling litchi resources in southwest Guangxi by ISSR

Qing Shen

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Abstract

The genetic diversities of 83 early-maturing litchi(variety) plants were examined by using ISSR markers in this study. Ten primers gave reproducible,polymorphic DNA amplification patterns with a total of 128 amplified bands. The percentage of polymorphic band was 83.59%,which showed that the early-maturing seedling litchi resources in southwest Guangxi had abundant genetic diversity. The genetic similarity ranged from 0.64 to 0.95 based on DICE. A dendrogram was constructed by UPGMA method,and the early-maturing litchi(variety)plants were distinguished from cultivar litchi at a similarity coefficient criterion of 0.75. No significant correlation between the dendrogram and geographical distance was revealed among the resources.

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What this paper is about

The genetic diversities of 83 early-maturing litchi(variety) plants were examined by using ISSR markers in this study. Ten primers gave reproducible,polymorphic DNA amplification patterns with a total of 128 amplified bands. The percentage of polymorphic band was 83.59%,which showed that the early-maturing seedling litchi resources in southwest Guangxi had abundant genetic diversity. The genetic similarity ranged from 0.64 to 0.95 based on DICE. A dendrogram was constructed by UPGMA method,and the early-maturing litchi(variety)plants were distinguished from cultivar litchi at a similarity coefficient criterion of 0.75. No significant correlation between the dendrogram and geographical distance was revealed among the resources.

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Available abstract

The genetic diversities of 83 early-maturing litchi(variety) plants were examined by using ISSR markers in this study. Ten primers gave reproducible,polymorphic DNA amplification patterns with a total of 128 amplified bands. The percentage of polymorphic band was 83.59%,which showed that the early-maturing seedling litchi resources in southwest Guangxi had abundant genetic diversity. The genetic similarity ranged from 0.64 to 0.95 based on DICE. A dendrogram was constructed by UPGMA method,and the early-maturing litchi(variety)plants were distinguished from cultivar litchi at a similarity coefficient criterion of 0.75. No significant correlation between the dendrogram and geographical distance was revealed among the resources.

Key concepts: UPGMA, Dendrogram, Genetic diversity, Similarity (geometry), Biology, Seedling, Genetic similarity, Genetic relationship

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Genetic diversity of early-maturing seedling litchi resources in southwest Guangxi by ISSR — Research Paper | ScholarLens