@ARTICLE{TreeBASE2Ref24203,
author = {Romain Arvid Dahan and Rebecca Pate Duncan and Alex CC Wilson and Liliana M Davalos},
title = {Amino acid transporter expansions associated with the evolution of obligate endosymbiosis in sap-feeding insects (Hemiptera: Sternorrhyncha)},
year = {2015},
keywords = {Gene family evolution, Endosymbiosis, Gene duplication, Phylogenetics},
doi = {},
url = {http://},
pmid = {},
journal = {BMC Evolutionary Biology},
volume = {},
number = {},
pages = {},
abstract = {Background:
Mutualistic obligate endosymbioses shape the evolution of endosymbiont genomes, but their impact on host genomes remains unclear. Insects of the sub-order Sternorrhyncha (Hemiptera) depend on bacterial endosymbionts for essential amino acids present at low abundances in their phloem-based diet. This obligate dependency has been proposed to explain why multiple amino acid transporter genes are maintained in the genomes of the insect hosts. We implemented phylogenetic comparative methods to test whether amino acid transporters have proliferated in sternorrhynchan genomes at rates grater than expected by chance.
Results:
By applying a series of methods to reconcile gene and species trees, infer the size of gene families in ancestral lineages, and simulate the null process of birth and death in multi-gene families, we uncovered a 10-fold increase in duplication rate in the AAAP family of amino acid transporters within Sternorrhyncha. This gene family expansion was unmatched in other closely related clades lacking endosymbionts that provide essential amino acids.
Conclusions:
Our findings support the influence of obligate endosymbioses on host genome evolution by both inferring significant expansions of gene families involved in symbiotic interactions, and discovering increases in the rate of duplication associated with multiple emergences of obligate symbiosis in Sternorrhyncha.
}
}
Matrix 56340 of Study 17122

Citation title:
"Amino acid transporter expansions associated with the evolution of obligate endosymbiosis in sap-feeding insects (Hemiptera: Sternorrhyncha)".

Study name:
"Amino acid transporter expansions associated with the evolution of obligate endosymbiosis in sap-feeding insects (Hemiptera: Sternorrhyncha)".

This study is part of submission 17122
(Status: Published).
Matrices
Title: Osmundaceae L418
Description: L418
Rows
Taxon Label |
Row Segments |
Characters 1?–30 |
Osmunda regalis R10 |
(none)
|
TCAGATTGTCGCCTTTGAATCCCAGACCAT |
Osmunda japonica J1J2J3J4J5J6J7J8 |
(none)
|
TCAGATTGTCGCCTTTGAATCCCAGACCAT |
Osmunda regalis R15 |
(none)
|
TCAGACTGTCGCCTTTGAATCCCAGACCAT |
Osmunda regalis R13aR14a |
(none)
|
TCAGACTGTCGCCTTTGAATCCCAGACCAT |
Osmunda regalis R14b |
(none)
|
TCAGACTGTCGCCTTTGAATCCCAGACCAT |
Osmunda regalis R13bR17R18 |
(none)
|
TCAGACTGTCGCCTTTGAATCCCAGACCAT |
Osmunda lancea L1L2L3 |
(none)
|
TCAGATTGTCGCCTTTGAATCCCAGACCAT |
Osmunda regalis R5R6R7R8R9 |
(none)
|
TCAGATTGTCGCCTTTGAATCCCAGACCAT |
Osmunda regalis R1R2R3R4 |
(none)
|
TCAGATTGTCGCCTTTGAATCCCAGACCAT |
Osmunda regalis R111R12 |
(none)
|
TCAAATTGTCGCCTTTGAATCCCAGACCAT |
Osmunda regalis R16 |
(none)
|
TCAGACTGTCGCCTTTGAATCCCAGACCAT |
Claytosmunda claytoniana CL2 |
(none)
|
CCAGACTGTCGCCTTTGAATCCCAGACCAT |
Columns
None of the columns has a description.