Analysis of ecological characteristics and molecular mechanisms related to reproductive strategy in marine angiosperm Zostera marina

海洋被子植物大叶藻生态特征及繁殖策略相关分子机制分析

• 批准号: 23658177
• 负责人: KAKINUMA MAKOTO
• 金额: $ 2.41万
• 依托单位: Mie University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-23658177/
• 关键词: 海産被子植物; アマモ; 海草; 種子; 発芽; 繁殖; 花穂; 花器官形成; 多年生

The intertidal seagrass Zostera marina is one of the major components of Zostera beds which are distributed along the coastline of Japan. In general, Z. marina shows two types of reproductive strategy, annual-type and perennial-type. Although morphological characteristics of annual Z. marina shoots were greatly affected by environmental water temperature during seed and germination periods, the influence of environmental water temperature on those of perennial Z. marina shoots was not observed. These results suggest that the reproductive strategy of annual Z. marina is different at individual level from that of perennial Z. marina. Candidate genes including floral homeotic MADS-box genes, which may be responsible for the reproductive strategy of Z. marina, were isolated and identified by expression analysis of the genes in Z. marina seedlings, various organs in the shoots, and spadices.

潮间带海草大叶藻（Zostera marina）是沿着日本海岸线分布的大叶藻层的主要组成部分。总的来说，Z. marina表现出一年生型和多年生型两种繁殖策略。虽然一年生Z.在种子期和萌发期，海水藻新梢受环境水温的影响较大;未观察到滨海芽。这些结果表明，一年生中华绒螯蟹的生殖策略是一种重要的生殖策略。marina与多年生Z在个体水平上存在差异。码头候选基因包括花同源异型MADS-box基因，这些基因可能与Z. marina，分离并鉴定了Z. marina幼苗，在芽中的各种器官，和叶隙。

项目成果

DDBJ/EMBL/GenBank アクセッション番号ZmMADS1 cDNA : AB661632 ZmMADS2 cDNA : AB661633 ZmMADS3 cDNA : AB661634 ZmMADS4 cDNA : AB661635 ZmMADS5 cDNA:AB661636

DDBJ/EMBL/GenBank 登录号 ZmMADS1 cDNA：AB661632 ZmMADS2 cDNA：AB661633 ZmMADS3 cDNA：AB661634 ZmMADS4 cDNA：AB661635 ZmMADS5 cDNA：AB661636