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Title of Journal: Plant Syst Evol

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Abbravation: Plant Systematics and Evolution

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Springer Vienna

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DOI

10.1007/10681735_478

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ISSN

2199-6881

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Genetic analysis of the dry forest timber tree Em

Authors: Heidy M VillalobosBarrantes Elmer G García Andrew J Lowe Federico J Albertazzi
Publish Date: 2014/04/30
Volume: 301, Issue: 1, Pages: 15-23
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Abstract

Sideroxylon capiri “Tempisque” is a threatened and economically important timber species in the dry forest of Costa Rica To assess the extent of the genetic diversity between and within populations of this species 86 samples were obtained from four sites in the northwestern part of the country from protected and nonprotected areas They were analyzed by amplified fragment length polymorphism Five primers were used to generate 254 polymorphic bands Molecular variance indicated a 92  within locations with a PhiPT φ st of 0083 and a He from 0204 to 0249 PCoA analysis showed two different groups one formed by Palo Verde and La Cruz samples and another group with Nicoya and Barra Honda samples The dendrogram arranged the samples in three groups individuals from Palo Verde and La Cruz divided in two groups and a more compact group from Barra Honda and Nicoya A positive correlation between pairwise linearized geographical distance and genetic differentiation among populations was detected by Mantel test R 2 = 076241 P = 004 Results are discussed in terms of fragmentation of the continuous forests and geographical barriers Despite these results it is evident that a great genetic diversity exists for this species and the results can be used for conservation purposesThe authors thank the Vicerrectoría de Investigación de la Universidad de Costa Rica Consejo Nacional de Ciencia y Tecnología de Costa Rica Sistema Nacional de Áreas de Conservación SINAC Ministerio de Ambiente y Energía MINAE University of Queensland University of Adelaide Dr Peter Prentis Dr Micheal Gardner Dr Giselle Tamayo Dr Rosaura Romero and Dr James Karkashian

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