SELECTION OF Handroanthus impetiginosus MOTHER TREES TO SUPPORT SEED COLLECTION AREAS

IF 0.6 4区农林科学 Q4 FORESTRY

Revista Arvore Pub Date : 2023-05-08 DOI:10.1590/1806-908820230000006

Jéssica Maia Alves Pimenta, Wendy Mattos Andrade Teixeira de Souza, C. S. Ferrari, F. A. Vieira, C. Fajardo, M. V. Pacheco

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Abstract

ABSTRACT Handroanthus impetiginosus is a Brazilian native tree threatened by illegal logging that needs conservation strategies. Due to the need to obtain seeds of high genetic and physiological quality, this study aimed to select mother trees, aiming at the installation of Seed Collection Areas of H. impetiginosus. Therefore, the genetic diversity and physiological quality of seeds from 63 individuals of a natural population of H. impetiginosus in Rio Grande do Norte, Brazil, were evaluated. The molecular markers revealed that the studied population has high intrapopulation genetic diversity (Nei’s genetic diversity = 0.35; and Shannon index = 0.52). Subsequently, germination and seed vigor tests evaluated the physiological quality of seeds from 63 trees. Of this total, 45 individuals produced seeds of high and intermediate physiological quality. Therefore, individuals with a Nei’s genetic distance < 0.72 and germination greater than 50% can be selected as mother trees, and the population has the potential to propose a Seed Collection Area.

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为支持种子采集区而选择的刺手花母树

摘要:由于非法采伐的威胁，巴西原生树Handroanthus impetiginosus急需保护。由于需要获得高遗传和生理质量的种子，本研究旨在选择母树，旨在建立刺蒺藜种子收集区。为此，对巴西北部里约热内卢Grande do Norte一个天然种群63个个体的种子遗传多样性和生理品质进行了评价。分子标记表明，研究群体具有较高的群体内遗传多样性(Nei’s遗传多样性= 0.35;Shannon指数= 0.52)。随后，通过发芽和种子活力试验对63棵树种子的生理品质进行了评价。其中45个个体产生了高、中等生理品质的种子。因此，可以选择Nei’s遗传距离< 0.72且发芽率大于50%的个体作为母树，种群具有建立种子收集区的潜力。

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

期刊介绍： A Revista Árvore é um veículo de comunicação científica da Sociedade de Investigações Florestais – SIF. O jornal é de acesso gratuito, revisado por pares, que publica bimestralmente trabalhos científicos originais no campo da Ciência Florestal. As áreas temáticas para publicação são: Ambiência e Conservação da Natureza, Manejo Florestal, Silvicultura e Tecnologia da Madeira e Utilização de Produtos Florestais. A política editorial visa manter alta conduta ética em relação à publicação e aos seus funcionários, rigor na qualidade dos artigos científicos, seleção de revisores qualificados, respeito profissional aos autores e processo de tomada de decisão imparcial. A Revista Árvore publica artigos apenas em inglês. Artigos de revisão podem ser publicados se houver uma discussão relevante resumindo o estado da arte sobre o assunto. A revisão estrita da literatura não é aceita.