WITHIN-POPULATION GENETIC DIVERSITY OF CLIMBING PLANTS AND TREES IN A TEMPERATE FOREST IN CENTRAL CHILE

The climbing habit is a key innovation in angiosperm evolution: climbing plant taxa have greater species richness than their non-climbing sister groups. It is considered that highly diversified clades should show increased among-population genetic differentiation. Less clear is the expected pattern...

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Autores principales:	Torres-Díaz,Cristian, Ruiz,Eduardo, Salgado-Luarte,Cristian, Molina-Montenegro,Marco A, Gianoli,Ernesto
Lenguaje:	English
Publicado:	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción 2013
Materias:	AFLP climbers evolution genetic variability key innovation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432013000100005
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spelling	oai:scielo:S0717-664320130001000052013-10-30WITHIN-POPULATION GENETIC DIVERSITY OF CLIMBING PLANTS AND TREES IN A TEMPERATE FOREST IN CENTRAL CHILETorres-Díaz,CristianRuiz,EduardoSalgado-Luarte,CristianMolina-Montenegro,Marco AGianoli,Ernesto AFLP climbers evolution genetic variability key innovation The climbing habit is a key innovation in angiosperm evolution: climbing plant taxa have greater species richness than their non-climbing sister groups. It is considered that highly diversified clades should show increased among-population genetic differentiation. Less clear is the expected pattern regarding within-population genetic diversity in speciose lineages. We tested the hypothesis of greater within-population genetic diversity in climbing plants compared to trees in a temperate forest in central Chile. The assumption underlying this hypothesis is that higher among-population differentiation in climbers compared to trees should reflect higher genetic diversity as well. AFLP markers from 167 individual plants from 14 species (seven climbers and seven trees) were used to estimate the following indices of within-population genetic diversity: mean unbiased expected heterozygosity (He), percentage of polymorphic loci (PPL), Shannon information index (I), and the effective number of alleles (Ne). Overall, within-population genetic diversity did not differ between climbing plants and trees. The He for climbing plants was slightly higher than that of trees (0.247 vs. 0.231), and PPL was higher in trees (93.6) than in climbers (81.8), but these differences were not statistically significant. Both I and Ne were very similar for both groups. The expected greater genetic diversity in climbers might have been counterbalanced by tree-related ecological factors that turned to be relevant in the species assemblages studied. Results of this preliminary study should be further confirmed with a broader approach including several forest sites and larger sample sizes.info:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana. Botánica v.70 n.1 20132013-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432013000100005en10.4067/S0717-66432013000100005
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	AFLP climbers evolution genetic variability key innovation
spellingShingle	AFLP climbers evolution genetic variability key innovation Torres-Díaz,Cristian Ruiz,Eduardo Salgado-Luarte,Cristian Molina-Montenegro,Marco A Gianoli,Ernesto WITHIN-POPULATION GENETIC DIVERSITY OF CLIMBING PLANTS AND TREES IN A TEMPERATE FOREST IN CENTRAL CHILE
description	The climbing habit is a key innovation in angiosperm evolution: climbing plant taxa have greater species richness than their non-climbing sister groups. It is considered that highly diversified clades should show increased among-population genetic differentiation. Less clear is the expected pattern regarding within-population genetic diversity in speciose lineages. We tested the hypothesis of greater within-population genetic diversity in climbing plants compared to trees in a temperate forest in central Chile. The assumption underlying this hypothesis is that higher among-population differentiation in climbers compared to trees should reflect higher genetic diversity as well. AFLP markers from 167 individual plants from 14 species (seven climbers and seven trees) were used to estimate the following indices of within-population genetic diversity: mean unbiased expected heterozygosity (He), percentage of polymorphic loci (PPL), Shannon information index (I), and the effective number of alleles (Ne). Overall, within-population genetic diversity did not differ between climbing plants and trees. The He for climbing plants was slightly higher than that of trees (0.247 vs. 0.231), and PPL was higher in trees (93.6) than in climbers (81.8), but these differences were not statistically significant. Both I and Ne were very similar for both groups. The expected greater genetic diversity in climbers might have been counterbalanced by tree-related ecological factors that turned to be relevant in the species assemblages studied. Results of this preliminary study should be further confirmed with a broader approach including several forest sites and larger sample sizes.
author	Torres-Díaz,Cristian Ruiz,Eduardo Salgado-Luarte,Cristian Molina-Montenegro,Marco A Gianoli,Ernesto
author_facet	Torres-Díaz,Cristian Ruiz,Eduardo Salgado-Luarte,Cristian Molina-Montenegro,Marco A Gianoli,Ernesto
author_sort	Torres-Díaz,Cristian
title	WITHIN-POPULATION GENETIC DIVERSITY OF CLIMBING PLANTS AND TREES IN A TEMPERATE FOREST IN CENTRAL CHILE
title_short	WITHIN-POPULATION GENETIC DIVERSITY OF CLIMBING PLANTS AND TREES IN A TEMPERATE FOREST IN CENTRAL CHILE
title_full	WITHIN-POPULATION GENETIC DIVERSITY OF CLIMBING PLANTS AND TREES IN A TEMPERATE FOREST IN CENTRAL CHILE
title_fullStr	WITHIN-POPULATION GENETIC DIVERSITY OF CLIMBING PLANTS AND TREES IN A TEMPERATE FOREST IN CENTRAL CHILE
title_full_unstemmed	WITHIN-POPULATION GENETIC DIVERSITY OF CLIMBING PLANTS AND TREES IN A TEMPERATE FOREST IN CENTRAL CHILE
title_sort	within-population genetic diversity of climbing plants and trees in a temperate forest in central chile
publisher	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432013000100005
work_keys_str_mv	AT torresdiazcristian withinpopulationgeneticdiversityofclimbingplantsandtreesinatemperateforestincentralchile AT ruizeduardo withinpopulationgeneticdiversityofclimbingplantsandtreesinatemperateforestincentralchile AT salgadoluartecristian withinpopulationgeneticdiversityofclimbingplantsandtreesinatemperateforestincentralchile AT molinamontenegromarcoa withinpopulationgeneticdiversityofclimbingplantsandtreesinatemperateforestincentralchile AT gianoliernesto withinpopulationgeneticdiversityofclimbingplantsandtreesinatemperateforestincentralchile
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WITHIN-POPULATION GENETIC DIVERSITY OF CLIMBING PLANTS AND TREES IN A TEMPERATE FOREST IN CENTRAL CHILE

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