GENETIC DIVERSITY IN AMBURANA (Amburana cearensis) ACCESSIONS: HIERARCHICAL AND OPTIMIZATION METHODS

IF 0.6 4区农林科学 Q4 FORESTRY

Revista Arvore Pub Date : 2021-07-02 DOI:10.1590/1806-908820210000008

Ana Valéria Vieira de Souza, Jackson Rafael de Sá Carvalho, Evelyn Sophia Silva Costa, C. S. Souza, Herick Fernando de Jesus Silva, J. M. Luz, G. Maciel, A. Siquieroli

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引用次数: 1

Abstract

ABSTRACT The evaluation of accessions in a germplasm bank is essential for determining the potential parents in conservation programs, especially for native trees. This study aimed to determine the genetic diversity among 68 Amburana cearensis genotypes from different locations in the state of Pernambuco, Brazil. Their genetic patterns were evaluated by Inter Simple Sequence Repeat (ISSR) molecular markers and genetic divergence was evaluated through multivariate analyses using different clustering methods. The optimization method used (Tocher) was in agreement with all the hierarchical models used, in which clustering of the genotypes occurred similarly, specifically for the accession BB116, which is an important genetic material to be preserved and studied. Among the various hierarchical methods applied, the Average Linkage method exhibited higher discrimination power, allowing identification of a larger number of divergent groups, thus implying wide genetic diversity among A. cearensis accessions.

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黄颡鱼(AMBURANA cearensis)种质的遗传多样性:层次和优化方法

摘要对种质库中的材料进行评估对于确定保护计划中的潜在亲本至关重要，尤其是对本土树木而言。本研究旨在确定来自巴西伯南布哥州不同地区的68种雪兰基因型的遗传多样性。用ISSR分子标记评价其遗传模式，并用不同聚类方法进行多元分析评价其遗传差异。所使用的优化方法（Tocher）与所使用的所有层次模型一致，其中基因型的聚类发生相似，特别是对于要保存和研究的重要遗传物质BB116。在应用的各种层次方法中，平均连锁法表现出更高的辨别力，可以识别出更多的不同群体，从而意味着紫檀材料之间存在广泛的遗传多样性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Revista Arvore FORESTRY-

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

4-8 weeks

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