The evolution of protostome GATA factors: molecular phylogenetics, synteny, and intron/exon structure reveal orthologous relationships.

BMC Evolutionary Biology
William Q GillisStephan Q Schneider

Abstract

Invertebrate and vertebrate GATA transcription factors play important roles in ectoderm and mesendoderm development, as well as in cardiovascular and blood cell fate specification. However, the assignment of evolutionarily conserved roles to GATA homologs requires a detailed framework of orthologous relationships. Although two distinct classes, GATA123 and GATA456, have been unambiguously recognized among deuterostome GATA genes, it has been difficult to resolve exact orthologous relationships among protostome homologs. Protostome GATA genes are often present in multiple copies within any one genome, and rapidly evolving gene sequences have obscured orthology among arthropod and nematode GATA homologs. In addition, a lack of taxonomic sampling has prevented a stepwise reconstruction of protostome GATA gene family evolution. We have identified the complete GATA complement (53 genes) from a diverse sampling of protostome genomes, including six arthropods, three lophotrochozoans, and two nematodes. Reciprocal best hit BLAST analysis suggested orthology of these GATA genes to either the ancestral bilaterian GATA123 or the GATA456 class. Using molecular phylogenetic analyses of gene sequences, together with conserved synteny and com...Continue Reading

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Citations

Jul 27, 2010·Molecular Biology and Evolution·Laura C FergusonChris D Jiggins
Aug 22, 2009·BMC Evolutionary Biology·William Q GillisStephan Q Schneider
Dec 26, 2013·Molecular Genetics and Genomics : MGG·Yanyan TangChao Qin
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Aug 4, 2016·Developmental and Comparative Immunology·Vyacheslav A Dyachuk
Aug 9, 2016·BMC Genomics·Hsien-Chao ChouStephan Q Schneider
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Jan 11, 2018·Developmental and Comparative Immunology·Xiaorui SongLinsheng Song
Mar 22, 2021·Current Opinion in Genetics & Development·Teruyuki Niimi, Toshiya Ando

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Methods Mentioned

BETA
Genome Sequencing

Software Mentioned

TblastN
aLRT
Tracembler
MrBayes
FASTA
ML
MacVector
Clustalx
PhyML
BLAST

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