Spatial Genetic Structure and Life History Traits in Cerrado Tree Species: Inferences for Conservation

被引：34

作者：

Collevatti, Rosane Garcia ^{[1
]}

Lima, Jacqueline Silva ^{[1
]}

Soares, Thannya Nascimento ^{[1
]}

de Campos Telles, Mariana Pires ^{[1
]}

机构：

[1] Univ Fed Goias UFG, Inst Ciencias Biol, Dept Biol Geral, Lab Genet & Biodiversidade, BR-74001970 Goiania, Go, Brazil

来源：

NATUREZA & CONSERVACAO | 2010年 / 8卷 / 01期

关键词：

Spatial Genetic Structure; Kinship; Life History; Cerrado; HABITAT FRAGMENTATION; FOREST FRAGMENTATION; SEED DISPERSAL; F-STATISTICS; POLLINATION; DISTANCE; ECOLOGY;

D O I：

10.4322/natcon.00801008

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

Spatial Genetic Structure (SGS) is correlated with life history traits and is affected by ecological and demographic processes. We discuss here the SGS within populations of three species from Cerrado Biome, Caryocar brasiliense, Dipteryx elate and Tibouchina papyrus, which vary in life history traits. Our working hypothesis was that self-incompatible and wind-dispersed species present no SGS due to long distance pollen gene flow. SGS analyses were based on polymorphism at microsatellite loci. Weak SGS was found for the three species, but the mammal dispersed species, C. brasiliense and a elate, presented stronger SGS than the wind dispersed species. T papyrus. Although D. alata presented the highest value of S-p (intensity of SGS), breeding system was not related with SGS because the other two self-compatible species presented contrasting patterns of SGS. The three species may be highly affected by fragmentation, especially the wind-dispersed species T papyrus, due to endemism and habitat vulnerability.

引用

页码：54 / 59

页数：6

共 30 条

[1] Plant reproductive susceptibility to habitat fragmentation: review and synthesis through a meta-analysis [J].