Morphometric relationship, phylogenetic correlation, and character evolution in the species-rich genus Aphis (Hemiptera: Aphididae).

PloS One
Hyojoong KimSeunghwan Lee

Abstract

The species-rich genus Aphis consists of more than 500 species, many of them host-specific on a wide range of plants, yet very similar in general appearance due to convergence toward particular morphological types. Most species have been historically clustered into four main phenotypic groups (gossypii, craccivora, fabae, and spiraecola groups). To confirm the morphological hypotheses between these groups and to examine the characteristics that determine them, multivariate morphometric analyses were performed using 28 characters measured/counted from 40 species. To infer whether the morphological relationships are correlated with the genetic relationships, we compared the morphometric dataset with a phylogeny reconstructed from the combined dataset of three mtDNA and one nuclear DNA regions. Based on a comparison of morphological and molecular datasets, we confirmed morphological reduction or regression in the gossypii group unlike in related groups. Most morphological characteristics of the gossypii group were less variable than for the other groups. Due to these, the gossypii group could be morphologically well separated from the craccivora, fabae, and spiraecola groups. In addition, the correlation of the rates of evolution ...Continue Reading

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Citations

Mar 4, 2014·Comptes rendus biologies·Houda MostefaouiGaëlle Saladin
Feb 26, 2016·Nano Letters·Elisa A HemmigAlex W Chin
Oct 12, 2016·Frontiers in Plant Science·Nathalie BoissotFlavie Vanlerberghe-Masutti
Jan 26, 2017·Insect Biochemistry and Molecular Biology·Jacob A WengerAndy Michel

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Methods Mentioned

BETA
PCA
PCAs

Software Mentioned

SAS
Tracer
SAS Procedure CANDISC
MEGA4
SAS Procedure DISTANCE
SAS Procedure PRINCOMP
Ktreedist
BayesTraits
MrModeltest
ZT

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