@ARTICLE{TreeBASE2Ref20070,
author = {Julissa Roncal and Andrew J Henderson and Finn Borchsenius and Sergio Ricardo Sodre Cardoso and Henrik Balslev},
title = {Can phylogenetic signal, character displacement or random phenotypic drift explain the morphological variation in the genus Geonoma (Arecaceae)?},
year = {2012},
keywords = {ancestral character state - Blomberg?s K-statistic - low-copy nuclear genes ? Neotropics - Palmae - quantitative morphological variables - trait evolution},
doi = {10.1111/j.1095-8312.2012.01879.x},
url = {http://},
pmid = {},
journal = {Biological Journal of the Linnean Society},
volume = {106},
number = {3},
pages = {528--539},
abstract = {Plant clades may exhibit little or wide morphological variation as a result of 1) the retention of ancestral characteristics or phylogenetic signal, 2) character displacement, or 3) random phenotypic drift. The taxonomy and systematics of many plant lineages has been challenging due to a continuous intra and interspecific morphological variation. To assess which evolutionary hypothesis could explain the morphological diversity in the genus Geonoma (Arecaceae), we performed a Mantel test between phylogenetic and morphological distances of 54 taxa, and tested for phylogenetic signal using Blomberg?s K-statistic. To obtain a phylogenetic (patristic) distance matrix for Geonoma, we constructed a molecular phylogeny of tribe Geonomateae using three nuclear DNA regions. A positive relationship between the patristic and a 26-discrete-character distance matrix (R2=0.55, p<0.001) supported the phylogenetic signal hypothesis. The signal was rendered by only four characters: fruit operculum, staminodial tube, connective shape and anthers shape. No relationship was evident using a 17-quantitative-variable distance matrix (R2=0.07, p=0.13), supporting the random drift hypothesis, and all 17 K-values were close to 0, suggesting less phylogenetic signal than under the Brownian model. If most morphological variables traditionally used to classify Geonoma evolved randomly, their low selective value might explain Geonoma?s challenging taxonomy.}
}
Citation for Study 11950
Citation title:
"Can phylogenetic signal, character displacement or random phenotypic drift explain the morphological variation in the genus Geonoma (Arecaceae)?".
Study name:
"Can phylogenetic signal, character displacement or random phenotypic drift explain the morphological variation in the genus Geonoma (Arecaceae)?".
This study is part of submission 11950
(Status: Published).
Citation
Roncal J., Henderson A.J., Borchsenius F., Sodre cardoso S.R., & Balslev H. 2012. Can phylogenetic signal, character displacement or random phenotypic drift explain the morphological variation in the genus Geonoma (Arecaceae)?. Biological Journal of the Linnean Society, 106(3): 528-539.
Authors
-
Roncal J.
(submitter)
+1 709 3516771
-
Henderson A.J.
-
Borchsenius F.
-
Sodre cardoso S.R.
-
Balslev H.
Abstract
Plant clades may exhibit little or wide morphological variation as a result of 1) the retention of ancestral characteristics or phylogenetic signal, 2) character displacement, or 3) random phenotypic drift. The taxonomy and systematics of many plant lineages has been challenging due to a continuous intra and interspecific morphological variation. To assess which evolutionary hypothesis could explain the morphological diversity in the genus Geonoma (Arecaceae), we performed a Mantel test between phylogenetic and morphological distances of 54 taxa, and tested for phylogenetic signal using Blomberg?s K-statistic. To obtain a phylogenetic (patristic) distance matrix for Geonoma, we constructed a molecular phylogeny of tribe Geonomateae using three nuclear DNA regions. A positive relationship between the patristic and a 26-discrete-character distance matrix (R2=0.55, p<0.001) supported the phylogenetic signal hypothesis. The signal was rendered by only four characters: fruit operculum, staminodial tube, connective shape and anthers shape. No relationship was evident using a 17-quantitative-variable distance matrix (R2=0.07, p=0.13), supporting the random drift hypothesis, and all 17 K-values were close to 0, suggesting less phylogenetic signal than under the Brownian model. If most morphological variables traditionally used to classify Geonoma evolved randomly, their low selective value might explain Geonoma?s challenging taxonomy.
Keywords
ancestral character state - Blomberg?s K-statistic - low-copy nuclear genes ? Neotropics - Palmae - quantitative morphological variables - trait evolution
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S11950
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- Show BibTeX reference
@ARTICLE{TreeBASE2Ref20070,
author = {Julissa Roncal and Andrew J Henderson and Finn Borchsenius and Sergio Ricardo Sodre Cardoso and Henrik Balslev},
title = {Can phylogenetic signal, character displacement or random phenotypic drift explain the morphological variation in the genus Geonoma (Arecaceae)?},
year = {2012},
keywords = {ancestral character state - Blomberg?s K-statistic - low-copy nuclear genes ? Neotropics - Palmae - quantitative morphological variables - trait evolution},
doi = {10.1111/j.1095-8312.2012.01879.x},
url = {http://},
pmid = {},
journal = {Biological Journal of the Linnean Society},
volume = {106},
number = {3},
pages = {528--539},
abstract = {Plant clades may exhibit little or wide morphological variation as a result of 1) the retention of ancestral characteristics or phylogenetic signal, 2) character displacement, or 3) random phenotypic drift. The taxonomy and systematics of many plant lineages has been challenging due to a continuous intra and interspecific morphological variation. To assess which evolutionary hypothesis could explain the morphological diversity in the genus Geonoma (Arecaceae), we performed a Mantel test between phylogenetic and morphological distances of 54 taxa, and tested for phylogenetic signal using Blomberg?s K-statistic. To obtain a phylogenetic (patristic) distance matrix for Geonoma, we constructed a molecular phylogeny of tribe Geonomateae using three nuclear DNA regions. A positive relationship between the patristic and a 26-discrete-character distance matrix (R2=0.55, p<0.001) supported the phylogenetic signal hypothesis. The signal was rendered by only four characters: fruit operculum, staminodial tube, connective shape and anthers shape. No relationship was evident using a 17-quantitative-variable distance matrix (R2=0.07, p=0.13), supporting the random drift hypothesis, and all 17 K-values were close to 0, suggesting less phylogenetic signal than under the Brownian model. If most morphological variables traditionally used to classify Geonoma evolved randomly, their low selective value might explain Geonoma?s challenging taxonomy.}
}
- Show RIS reference
TY - JOUR
ID - 20070
AU - Roncal,Julissa
AU - Henderson,Andrew J
AU - Borchsenius,Finn
AU - Sodre Cardoso,Sergio Ricardo
AU - Balslev,Henrik
T1 - Can phylogenetic signal, character displacement or random phenotypic drift explain the morphological variation in the genus Geonoma (Arecaceae)?
PY - 2012
KW - ancestral character state - Blomberg?s K-statistic - low-copy nuclear genes ? Neotropics - Palmae - quantitative morphological variables - trait evolution
UR - http://dx.doi.org/10.1111/j.1095-8312.2012.01879.x
N2 - Plant clades may exhibit little or wide morphological variation as a result of 1) the retention of ancestral characteristics or phylogenetic signal, 2) character displacement, or 3) random phenotypic drift. The taxonomy and systematics of many plant lineages has been challenging due to a continuous intra and interspecific morphological variation. To assess which evolutionary hypothesis could explain the morphological diversity in the genus Geonoma (Arecaceae), we performed a Mantel test between phylogenetic and morphological distances of 54 taxa, and tested for phylogenetic signal using Blomberg?s K-statistic. To obtain a phylogenetic (patristic) distance matrix for Geonoma, we constructed a molecular phylogeny of tribe Geonomateae using three nuclear DNA regions. A positive relationship between the patristic and a 26-discrete-character distance matrix (R2=0.55, p<0.001) supported the phylogenetic signal hypothesis. The signal was rendered by only four characters: fruit operculum, staminodial tube, connective shape and anthers shape. No relationship was evident using a 17-quantitative-variable distance matrix (R2=0.07, p=0.13), supporting the random drift hypothesis, and all 17 K-values were close to 0, suggesting less phylogenetic signal than under the Brownian model. If most morphological variables traditionally used to classify Geonoma evolved randomly, their low selective value might explain Geonoma?s challenging taxonomy.
L3 - 10.1111/j.1095-8312.2012.01879.x
JF - Biological Journal of the Linnean Society
VL - 106
IS - 3
SP - 528
EP - 539
ER -