| 微生境对鼎湖山锥表观遗传变异的影响 |
| |
| 引用本文： | 李文琪,姜楚,欧阳学军,林永标,练琚瑜,刘卫. 微生境对鼎湖山锥表观遗传变异的影响[J]. 热带亚热带植物学报, 2020, 28(1): 62-69 |
| |
| 作者姓名： | 李文琪 姜楚 欧阳学军 林永标 练琚瑜 刘卫 |
| |
| 作者单位： | 中国科学院华南植物园, 广州 510650;中国科学院大学, 北京 100049,中国科学院华南植物园, 广州 510650;中国科学院大学, 北京 100049,鼎湖山国家级自然保护区管理局, 广东 肇庆 526070,中国科学院华南植物园, 广州 510650;广东省应用植物学重点实验室, 广州 510650,中国科学院华南植物园, 广州 510650,中国科学院华南植物园, 广州 510650 |
| |
| 基金项目： | 中国科学院战略性先导科技专项项目（B类）（XDB31030000）；国家重点研发计划项目（2017YFC0505802）；国家自然科学基金面上项目（31370437）资助 |
| |
| 摘 要： | 为了解种群内水平上影响植物的适应机制与空间格局关系的因素,对鼎湖山2个演替阶段林分锥(Castanopsis chinensis)种群通过DNA甲基敏感扩增片段多态性进行表观遗传特征分析,结果表明,微生境对表观遗传变异的贡献由成熟林的20.2%降低为过熟林的15.7%,但地形因素的影响却增大,同时微生境中具体起显著作用的环境因素在两个林分也不同。因此,微生境特征对种群适应机制和分布格局有显著影响,对演替阶段也有影响。
|
| 关 键 词： | 锥 表观遗传 DNA甲基化 鼎湖山 微环境 |
| 收稿时间： | 2019-02-16 |
| 修稿时间： | 2019-04-27 |
Effect of Microhabitat on Epigenetic Variation of Dinghu Mountain Castanopsis chinensis Hance |
| |
| LI Wen-qi,JIANG Chu,OUYANG Xue-jun,LIN Yong-biao,LIAN Jun-yu and LIU Wei. Effect of Microhabitat on Epigenetic Variation of Dinghu Mountain Castanopsis chinensis Hance[J]. Journal of Tropical and Subtropical Botany, 2020, 28(1): 62-69 |
| |
| Authors: | LI Wen-qi JIANG Chu OUYANG Xue-jun LIN Yong-biao LIAN Jun-yu LIU Wei |
| |
| Affiliation: | South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;University of Chinese Academy of Sciences, Beijing 100049, China,South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;University of Chinese Academy of Sciences, Beijing 100049, China,Administration of Dinghushan National Nature Reserve, South China Botanical Garden, Chinese Academy of Sciences, Zhaoqing 526070, Guangdong, China,South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;Guangdong Provincial Key Laboratory of Applied Botany, Guangzhou 510650, China,South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China and South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China |
| |
| Abstract: | In order to understand the effect factors on the relationship between plant adaptation mechanism and spatial pattern within population, epigenetic variation characteristics of two populations of Castanopsis chinensis at different succession stages in Dinghushan were analyzed by using DNA methyl-sensitive amplified fragment polymorphism (MSAP). The results showed that the contribution of microhabitats to epigenetic variation decreased from 20.2% in mature forests to 15.7% in over-mature forests, but the influence of topographic factors increased. At the same time, the environmental factors in microhabitats that played a significant role to methylation variation were different between the two forests. So, it was suggested that microhabitat characteristics had partial significant effects on population adaptation mechanism and distribution pattern, and did the succession stage. |
| |
| Keywords: | Castanopsis chinensis Epigenetic DNA methylation Dinghushan Microhabitat |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《热带亚热带植物学报》浏览原始摘要信息 |
|
点击此处可从《热带亚热带植物学报》下载全文 |
|
