The promoter of an A9 homolog from the conifer Cryptomeria japonica imparts male strobilus-dominant expression in transgenic trees

Manabu Kurita, Ken ichi Konagaya, Atsushi Watanabe, Teiji Kondo, Katsuaki Ishii, Toru Taniguchi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Key message: GUS analysis inCryptomeria japonicarevealed that theCjMALE1promoter is activated in the male strobilus ofC. japonica. Toward the development of male sterile technology for Cryptomeria japonica, a male strobilus-dominant promoter of C. japonica was isolated. The CjMALE1 gene was isolated from a male strobilus-specific suppression subtractive hybridization (SSH) library, and the promoter was isolated by the TAIL-PCR method. To characterize the CjMALE1 promoter, β-glucuronidase (GUS)-fused genes were constructed and introduced into C. japonica using Agrobacterium tumefaciens. GUS expression from CjMALE1-2. 5 K (2,718 bp fragment)::GUSC. japonica and CjMALE1-1 K (1,029 bp fragment)::GUSC. japonica was detected in the tapetum and microspore mother cells. These promoter fragments were comparably active in the pre-meiotic stage of the male strobilus of C. japonica. Our analysis showed that the 1,029 bp promoter had all the cis-elements necessary for male strobilus-dominant expression of CjMALE1. When CjMALE1-1 K::GUS was introduced into Arabidopsis, GUS expression was detected in the same spatiotemporal pattern as in C. japonica. These results suggest that the CjMALE1 promoter is subject to transcriptional regulatory systems consisting of cis- and trans-elements that have been highly conserved during evolution.

Original languageEnglish
Pages (from-to)319-328
Number of pages10
JournalPlant Cell Reports
Volume32
Issue number2
DOIs
Publication statusPublished - Jan 1 2013

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Plant Science

Fingerprint Dive into the research topics of 'The promoter of an A9 homolog from the conifer Cryptomeria japonica imparts male strobilus-dominant expression in transgenic trees'. Together they form a unique fingerprint.

Cite this