The Basic Helix-Loop-Helix Transcription Factor Family in the Pea Aphid, Acyrthosiphon pisum

The basic helix-loop-helix (bHLH) proteins play essential roles in a wide range of developmental processes in higher organisms. bHLH family members have been identified in over 20 organisms, including fruit fly, zebrafish, and human. This study identified 54 bHLH family members in the pea aphid, Acy...

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Bibliographic Details
Published in:Journal of insect science (Tucson, Ariz.) Ariz.), 2011, Vol.11 (84), p.1-11
Main Authors: Dang, Chun-Wang, Wang, Yong, Chen, Ke-Ping, Yao, Qing, Zhang, De-Bao, Guo, Min
Format: Article
Language:English
Subjects:
Acyrthosiphon pisum
Amino Acid Sequence
Animal genetics
Animals
Aphididae
Aphids - genetics
Basic Helix-Loop-Helix Transcription Factors - genetics
blast search
Bombycidae
Bombyx mori
Coleoptera
Danio rerio
Diptera
Drosophila melanogaster
Drosophila melanogaster - genetics
Drosophilidae
Genetic aspects
Genome, Insect
Genomes
genomics
Helix-loop-helix proteins
Hemiptera
Insect Proteins - genetics
Introns
Lepidoptera
Molecular Sequence Data
Multigene Family
orthologous family
Pea aphid
phylogenetic analysis
Phylogeny
Physiological aspects
Pisum
Sequence Homology, Amino Acid
Structure-function relationships
Tenebrionidae
Transcription factors
Tribolium castaneum
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Summary:The basic helix-loop-helix (bHLH) proteins play essential roles in a wide range of developmental processes in higher organisms. bHLH family members have been identified in over 20 organisms, including fruit fly, zebrafish, and human. This study identified 54 bHLH family members in the pea aphid, Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae), genome. Phylogenetic analyses revealed that they belong to 37 bHLH families with 21, 13, 9, 1, 9, and 1 members in group A, B, C, D, E, and F, respectively. Through in-group phylogenetic analyses, all of the identified A. pisum bHLH members were assigned into their correspondent bHLH families with confidence, among which 51 were defined according to phylogenetic analyses with orthologs from Drosophila melanogaster Meigen (Diptera: Drosophilidae), and 3 of them were defined according to phylogenetic analyses with orthologs from Bombyx mori L. (Lepidoptera: Bombycidae) and Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae). Analyses on genomic coding regions revealed that the number and average length of introns in A. pisum bHLH motifs are higher than those in other insects. The present study provides useful background information for future studies on structure and function of bHLH proteins in the regulation of A. pisum development.
ISSN:1536-2442
1536-2442
DOI:10.1673/031.011.8401