The Gene Encoding Mitochondrial Succinate Dehydrogenasa Subunit 4 Has Been Successfully Transferred to the Nuclear Genome in Pea, while Leaving an Original Sequence as a Pseudogene in the Mitochondrial Genome

スポンサーリンク

概要

• 論文の詳細を見る

• A sequence homologous to a gene encoding succinate dehydrogenase subunit 4 (sdh4) was found in pea mitochondrial genome but non-functional. A functional sdh4 gene was isolated from pea nuclear genome, suggesting gene transfer from the mitochondrion to the nucleus during evolution. As compared with mitochondrial sdh4 genes, the pea nuclear sdh4 gene has an extension in its N-terminal region, suggesting encoding a protein targeting signal to mitochondria. There are five introns and six exons in the pea nuclear sdh4 gene. Sequence homology to mitochondrial sdh4 is observed in the exon 6 but not in the other five exons, suggesting mitochondrial sequence was integrated downstream of the five exons. Comparison of nuclear sdh4 genomic sequences from pea, Arabidopsis and rice suggests that the number and location of introns are different among the three. Therefore, sdh4 genes may have evolved in the nuclei independently among plant species.

• 日本植物細胞分子生物学会の論文
• 2001-12-01

著者

• Kubo Nakao

  Genetic Diversity Department National Institute Of Agrobiological Sciences

• Kadowaki Koh-ichi

  Faculty Of Horticulture Chiba University

関連論文

• Rpp16 and Rpp17, from a Common Origin, have Different Protein Characteristics but Both Genes are Predominantly Expressed in Rice Phloem Tissues
• The Gene Encoding Mitochondrial Succinate Dehydrogenasa Subunit 4 Has Been Successfully Transferred to the Nuclear Genome in Pea, while Leaving an Original Sequence as a Pseudogene in the Mitochondrial Genome

スポンサーリンク