Evolution of MADS-Box Gene Induction by FLO/LFY Genes

被引：4

作者：

Saiko Himi

Ryosuke Sano

Tomoaki Nishiyama

Takako Tanahashi

Masahiro Kato

Kunihiko Ueda

Mitsuyasu Hasebe

机构：

[1] Department of Biology,

[2] Faculty of Science,undefined

[3] Kanazawa University,undefined

[4] Kanazawa 920-1192,undefined

[5] Japan,undefined

[6] National Institute for Basic Biology,undefined

[7] 38 Nishigonaka,undefined

[8] Myodaiji-cho,undefined

[9] Okazaki 444-8585,undefined

[10] Japan,undefined

[11] Department of Biology,undefined

[12] Faculty of Science,undefined

[13] Chiba University,undefined

[14] Chiba 263-0022,undefined

[15] Japan,undefined

[16] Department of Biological Sciences,undefined

[17] Graduate School of Science,undefined

[18] The University of Tokyo,undefined

[19] Tokyo 113-0033,undefined

[20] Japan,undefined

[21] Department of Molecular Biomechanics,undefined

[22] The Graduate University for Advanced Studies,undefined

[23] Okazaki 444-8585,undefined

[24] Japan,undefined

[25] PRESTO,undefined

[26] Japan Science and Technology Corporation,undefined

来源：

Journal of Molecular Evolution | 2001年 / 53卷

关键词：

Key words:Leafy — FLORICAULA — FLO/LFY— MADS-box — Pteridophyte — Fern — Floral homeotic gene — Reproductive organ — Flower;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Some MADS-box genes function as floral homeotic genes. The Arabidopsis LFY gene is a positive regulator of floral homeotic genes, and homologs of the FLO/LFY gene family in other angiosperms and gymnosperms are likely to have a similar function. To investigate the origin of the floral homeotic gene regulatory cascade involving the FLO/LFY gene, FLO/LFY homologs were cloned from a leptosporangiate fern (Ceratopteris richardii), two eusporangiate ferns (Angiopteris lygodiifolia and Botrychium multifidum var. robustum), three fern allies (Psilotum nudum, Equisetum arvense, and Isoetes asiatica), and a moss (Physcomitrella patens). The FLO/LFY gene phylogenetic tree indicates that both duplication and loss of FLO/LFY homologs occurred during the course of vascular plant evolution. The expression patterns of the Ceratopteris LFY genes (CrLFY1 and 2) were assessed. CrLFY1 expression was prominent in tissues including shoot tips and circinate reproductive leaves, but very weak in other tissues examined. Expression of CrLFY2 was also prominent in tissues, including shoot tips and circinate reproductive leaves. These patterns of expression are dissimilar to that of any Ceratopteris MADS-box gene previously reported, suggesting that the induction of MADS-box genes by FLO/LFY is not established at the stage of ferns.

引用

页码：387 / 393

页数：6