Heterogeneous evolution of the Myc-like Anthocyanin regulatory gene and its phylogenetic utility in Cornus L. (Cornaceae)

Chuanzhu Fan, Michael D. Purugganan, David T. Thomas, Brian M. Wiegmann, Qiu Yun Xiang

Research output: Contribution to journalArticle

Abstract

Anthocyanin is a major pigment in vegetative and floral organs of most plants and plays an important role in plant evolution. The anthocyanin regulatory genes are responsible for regulating transcription of genes in the anthocyanin synthetic pathway. To assess evolutionary significance of sequence variation and evaluate the phylogenetic utility of an anthocyanin regulatory gene, we compared nucleotide sequences of the myc-like anthocyanin regulatory gene in the genus of dogwoods (Cornus: Cornaceae). Phylogenetic analyses demonstrate that the myc-like anthocyanin regulatory gene has potential as an informative phylogenetic marker at different taxonomic levels, depending on the data set considered (DNA or protein sequences) and regions applied (exons or introns). Pairwise nonsynonymous and synonymous substitution rate tests and codon-based substitution models were applied to characterize variation and to identify sites under diversifying selection. Mosaic evolution and heterogeneous rates among different domains and sites were detected.

Original languageEnglish (US)
Pages (from-to)580-594
Number of pages15
JournalMolecular Phylogenetics and Evolution
Volume33
Issue number3
DOIs
StatePublished - Dec 2004

Fingerprint

Cornaceae
Cornus
Anthocyanins
Regulator Genes
regulator genes
anthocyanins
phylogenetics
gene
phylogeny
substitution
nucleotide sequences
pigment
codons
Codon
Introns
exons
introns
Exons
amino acid sequences
DNA

Keywords

  • Cornus
  • Heterogeneous evolution
  • myc-like anthocyanin regulatory gene
  • Phylogenetics
  • Positive selection

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Molecular Biology
  • Genetics

Cite this

Heterogeneous evolution of the Myc-like Anthocyanin regulatory gene and its phylogenetic utility in Cornus L. (Cornaceae). / Fan, Chuanzhu; Purugganan, Michael D.; Thomas, David T.; Wiegmann, Brian M.; Xiang, Qiu Yun.

In: Molecular Phylogenetics and Evolution, Vol. 33, No. 3, 12.2004, p. 580-594.

Research output: Contribution to journalArticle

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