Gene contents and organization of a mitochondrial DNA segment of the squid Loligo bleekeri

Junji Sasuga, Shin Ichi Yokobori, Masayuki Kaifu, Takuya Ueda, Kazuya Nishikawa, Kimitsuna Watanabe

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

The nucleotide sequence of a 9240-base pair DNA fragment of the mitochondrial (mt) genome of a squid, Loligo bleekeri, was determined, in which 8 protein and 14 tRNA genes were identified. The gene organization of the mt-genome exhibits a greater resemblance to the gene organization of arthropods and a chiton, Katharina tunicata, than to those of a mussel, Mytilus edulis, and land snails. A cloverleaf-like structure was observed between the genes for subunits 4 and 5 of NADH dehydrogenase (ND4 and -5), which is considered to have originated from histidine tRNA. It is presumed that this structure functions as a transcriptional punctuation signal for the maturation of the ND4 and ND5 mRNAs.

Original languageEnglish
Pages (from-to)692-702
Number of pages11
JournalJournal of Molecular Evolution
Volume48
Issue number6
DOIs
Publication statusPublished - 1999 Jul 1
Externally publishedYes

Fingerprint

Loligo
Decapodiformes
squid
Mitochondrial DNA
mitochondrial DNA
Mitochondrial Genome
gene
Transfer RNA
Genes
Polyplacophora
genes
genome
Mytilus edulis
Urochordata
NADH dehydrogenase
Arthropods
Bivalvia
Snails
histidine
Histidine

Keywords

  • Cephalopoda
  • Gene organization
  • Mitochondrial DNA
  • Mollusca
  • tRNA punctuation
  • Unusual genetic code

ASJC Scopus subject areas

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

Cite this

Gene contents and organization of a mitochondrial DNA segment of the squid Loligo bleekeri. / Sasuga, Junji; Yokobori, Shin Ichi; Kaifu, Masayuki; Ueda, Takuya; Nishikawa, Kazuya; Watanabe, Kimitsuna.

In: Journal of Molecular Evolution, Vol. 48, No. 6, 01.07.1999, p. 692-702.

Research output: Contribution to journalArticle

Sasuga, Junji ; Yokobori, Shin Ichi ; Kaifu, Masayuki ; Ueda, Takuya ; Nishikawa, Kazuya ; Watanabe, Kimitsuna. / Gene contents and organization of a mitochondrial DNA segment of the squid Loligo bleekeri. In: Journal of Molecular Evolution. 1999 ; Vol. 48, No. 6. pp. 692-702.
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