Knowledge Management System Of Institute Of Botany,CAS
| Maternal effects on seed heteromorphism: a dual dynamic bet hedging strategy | |
Jiang, Li1; Wang, Lei ; Baskin, Carol2,3; Tian, Changyan; Huang, Zhenying4
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| 2019 | |
| 发表期刊 | SEED SCIENCE RESEARCH
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| ISSN | 0960-2585 |
| 卷号 | 29期号:2页码:149-153 |
| 摘要 | Maternal effects on offspring seeds are mainly caused by seed position on, and the abiotic environment of, the mother plant. Seed heteromorphism, a special form of position effect, is the production by an individual plant of morphologically distinct seed types, usually with different ecological behaviours. Seed heteromorphism is assumed to be a form of bet hedging and provides an ideal biological model to test theoretical predictions. Most studies of maternal effects on seeds have focused on abiotic environmental factors and changes in mean seed traits of offspring. Suaeda salsa is an annual halophyte that produces dimorphic seeds within the same inflorescence. We tested the hypothesis that plants grown from brown seeds of S. salsa have a higher offspring brown seed:black seed morph ratio and variance in seed size than plants from black seeds. Results from a pot experiment showed that plants grown from brown seeds had a higher brown seed:black seed ratio than plants grown from black seeds. This is the first layer of dynamic bet hedging. Brown seeds had higher size variation than black seeds, and seeds produced by plants from brown seeds also had higher seed size variation than plants grown from black seeds. This is the second layer of dynamic bet hedging. Thus, the maternal effect of seed heteromorphism is dual dynamic bet hedging. Furthermore, for seed traits we verified for the first time the theoretical prediction that an increase in offspring size variability induces an increase in the mean size of offspring. |
| 关键词 | bet hedging maternal effect seed heteromorphism seed size Suaeda |
| 学科领域 | Plant Sciences |
| DOI | 10.1017/S0960258519000114 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | SALT TOLERANCE ; DIMORPHIC SEEDS ; GERMINATION |
| WOS研究方向 | Plant Sciences |
| WOS记录号 | WOS:000514154700009 |
| 出版者 | CAMBRIDGE UNIV PRESS |
| 文献子类 | Article |
| 出版地 | CAMBRIDGE |
| EISSN | 1475-2735 |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31770451] ; Foundation for Western Young Scholars, Chinese Academy of Sciences [2017-XBQNXZ-A-001] |
| 作者邮箱 | egiwang@ms.xjb.ac.cn ; zhenying@ibcas.ac.cn |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/19490 |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Peoples R China 2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Biogeog & Bioresource Arid Land, Urumqi, Peoples R China 3.Univ Kentucky, Dept Biol, Lexington, KY 40506 USA 4.Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY 40546 USA 5.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Li,Wang, Lei,Baskin, Carol,et al. Maternal effects on seed heteromorphism: a dual dynamic bet hedging strategy[J]. SEED SCIENCE RESEARCH,2019,29(2):149-153. |
| APA | Jiang, Li,Wang, Lei,Baskin, Carol,Tian, Changyan,&Huang, Zhenying.(2019).Maternal effects on seed heteromorphism: a dual dynamic bet hedging strategy.SEED SCIENCE RESEARCH,29(2),149-153. |
| MLA | Jiang, Li,et al."Maternal effects on seed heteromorphism: a dual dynamic bet hedging strategy".SEED SCIENCE RESEARCH 29.2(2019):149-153. |
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| Applet_2021-12-07_14（211KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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