Chloroplast DNA variation of Carapa guianensis in the Amazon basin

被引：19
|
作者：
Cloutier, D
Póvoa, JSR
Procopio, LC
Leao, NVM
Wadt, LHO
Ciampi, AY
Schoen, DJ
机构：
[1] McGill Univ, Dept Biol, Montreal, PQ H3A 1B1, Canada
[2] EMBRAPA, CENARGEN, Lab Genet Vegetal, BR-70770900 Brasilia, DF, Brazil
[3] EMBRAPA, Trav Dr Eneas Pinheiro, BR-66095100 Belem, Para, Brazil
[4] EMBRAPA, BR-69901897 Rio Branco, Brazil
来源：
SILVAE GENETICA | 2005年 / 54卷 / 06期
关键词：
cpDNA; Amazonia; Amazon river; Carapa guianensis; seed dispersal;
D O I：
10.1515/sg-2005-0039
中图分类号：
S7 [林业];
学科分类号：
0829 ; 0907 ;
摘要：
Carapa guianensis is a widespread Neotropical tree species that produces a seed adapted for water dispersal. We conducted a pilot study of chloroplast DNA (cpDNA) variation in order to investigate the consequences of hydrochory on genetic diversity and geographic population structure in the lower Amazon basin. A survey of cpDNA haplotype variation reveals a strong regional structure, which suggests limited gene flow by seeds. Within site variation was detected only in one floodplain forest (varzea), suggesting that seed dispersal by water in these forests has the potential to mix maternal lineages. Several phylogeographic hypotheses are discussed with respect to these data.
引用
收藏
页码：270 / 274
页数：5
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