Characterization of MADS-box genes in charophycean green algae and its implication for the evolution of MADS-box genes

被引：95

作者：

Tanabe, Y

Hasebe, M ^{[1
]}

Sekimoto, H

Nishiyama, T

Kitani, M

Henschel, K

Münster, T

Theissen, G

Nozaki, H

Ito, M

机构：

[1] Univ Tokyo, Grad Sch Arts & Sci, Dept Multidisciplinary Sci, Tokyo 1538902, Japan

[2] Chiba Univ, Grad Sch Sci & Technol, Chiba 2638522, Japan

[3] Natl Inst Basic Biol, Okazaki, Aichi 4448585, Japan

[4] Dept Mol Biomech, Okazaki, Aichi 4448585, Japan

[5] Max Planck Inst Plant Breeding Res, Dept Mol Plant Genet, D-50829 Cologne, Germany

[6] Univ Jena, Dept Genet, D-07743 Jena, Germany

[7] Univ Tokyo, Grad Sch Sci, Dept Biol Sci, Tokyo 1130033, Japan

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2005年 / 102卷 / 07期

关键词：

charophytes; land plants; Chara; Coleochaete; Closterium;

D O I：

10.1073/pnas.0409860102

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The MAIDS-box genes of land plants are extensively diverged to form a superfamily and are important in various aspects of development including the specification of floral organs as homeotic selector genes. The closest relatives of land plants are the freshwater green algae charophyceans. To study the origin and evolution of land plant MADS-box genes, we characterized these genes in three charophycean green algae: the stonewort Chara globularis, the coleochaete Coleochaete scutata, and the desmid Closterium peracerosum-strigosum-littorale complex. Phylogenetic analyses suggested that MADS-box genes diverged extensively in the land plant lineage after the separation of charophyceans from land plants. The stonewort C. globularis mRNA was specifically detected in the oogonium and antheridium together with the egg and spermatozoid during their differentiation. The expression of the C. peracerosum-strigosum-littorale-complex gene increased when vegetative cells began to differentiate into gametangial cells and decreased after fertilization. These expression patterns suggest that the precursors of land plant MADS-box genes originally functioned in haploid reproductive cell differentiation and that the haploid MAIDS-box genes were recruited into a diploid generation during the evolution of land plants.

引用

页码：2436 / 2441

页数：6

共 32 条

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