气候变化领域集成服务门户(CCPortal): Genetic diversity of Brazil nut tree (Bertholletia excelsa Bonpl.) in southern Brazilian Amazon

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DOI	10.1016/j.foreco.2019.117795
	Genetic diversity of Brazil nut tree (Bertholletia excelsa Bonpl.) in southern Brazilian Amazon
	Baldoni A.B.; Ribeiro Teodoro L.P.; Eduardo Teodoro P.; Tonini H.; Dessaune Tardin F.; Alves Botin A.; Hoogerheide E.S.S.; de Carvalho Campos Botelho S.; Lulu J.; de Farias Neto A.L.; Rennó Azevedo V.C.
发表日期	2020
ISSN	0378-1127
卷号	458
英文摘要	Understanding genetic diversity is the basis of the evolutionary process of any species, as there are mechanisms that increase or reduce genetic variation. Brazil nut (Bertholletia excelsa Bonpl.) occurs in the Amazon region, and is included in the list of endangered species, justifying the importance of this study for the species. This study hypothesized that genetic diversity among individuals collected at different locations in the Amazon (between groups) is greater than genetic diversity between individuals from the same location (within groups). We aimed to study the genetic diversity of four populations of B. excelsa, located in native forests in the Amazon region of the state of Mato Grosso. DNAs were collected from 50 adult trees at each four sites, which were evaluated by seven microsatellite molecular markers (loci Bex06, Bet15, Bet14, Bex09 and Bet16). Genetic diversity of four Brazil nut tree populations collected in the Amazon region were assessed by microsatellite molecular markers. Brazil nut tree revealed to have greater genetic diversity between population than within in individuals in each population, suggesting that seed collection considering a larger number of matrices between a population than within populations is a more effective strategy. The most genetically distant populations were Itaúba and Juína, and Itaúba and Cotriguaçu, showing a relationship with geographical distance and also with differences found in fruit and seed characteristics already reported in other studies evaluating such populations. The findings of this study contribute to the establishment of the species breeding strategies that, in turn, ensure the maintenance and preservation of the genetic diversity of Brazil nut tree in southern Brazilian Amazon. © 2019 Elsevier B.V.
关键词	Conservation DNA sequences Forestry Genes Micro satellites Breeding strategy Conservation programs Diversity between and within Endangered species Evolutionary process Genetic distances Genetic variation Seed characteristics Biodiversity DNA endangered species genetic marker genetic variation molecular analysis nut reproductive strategy Bertholletia Biodiversity Conservation Forestry Genes Seeds Amazon River Bertholletia excelsa
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133104
推荐引用方式 GB/T 7714	Baldoni A.B.,Ribeiro Teodoro L.P.,Eduardo Teodoro P.,et al. Genetic diversity of Brazil nut tree (Bertholletia excelsa Bonpl.) in southern Brazilian Amazon[J]. Forest Ecology and Management,2020,458.
APA	Baldoni A.B..,Ribeiro Teodoro L.P..,Eduardo Teodoro P..,Tonini H..,Dessaune Tardin F..,...&Rennó Azevedo V.C..(2020).Genetic diversity of Brazil nut tree (Bertholletia excelsa Bonpl.) in southern Brazilian Amazon.,458.
MLA	Baldoni A.B.,et al."Genetic diversity of Brazil nut tree (Bertholletia excelsa Bonpl.) in southern Brazilian Amazon".458(2020).