Potential risk of hybridization in ex situ collections of two endangered species of Sinoiackia Hu (Styracaceae)
文献类型：期刊论文
| 作者 | Kang, Ming; Ye, Qi-Gang; Yao, Xiao-Hong; Zhang, Sheng-Ju; Huang, Hong-Wen |
| 刊名 | JOURNAL OF INTEGRATIVE PLANT BIOLOGY
 |
| 出版日期 | 2006-07-01 |
| 卷号 | 48期号:7页码:867-872 |
| 关键词 | endangered species ex situ conservation hybridization risk phenology pollination Sinojackia rehderiana Sinojackia xylocarpa |
| ISSN号 | 1672-9072 |
| 英文摘要 | Spontaneous hybridization in ex situ facilities can undermine the genetic integrity of ex situ collections and potentially contaminate open-pollinated seeds or seedlings destined for the reintroduction of endangered plant species into the wild. In the present study, the potential risk of hybridization between two endangered Chinese endemic species, namely Sinojackia xylocarpa Hu and S. rehderiana Hu, which are naturally allopatric species but were conserved ex situ in Wuhan Botanical Garden (WBG), Wuhan, China, were investigated over three consecutive years from 2003 to 2005. The entire overlapping flowering period of the two species was 14-20 d and the two species shared the same pollinator insects during the entire flowering season in WBG. The floral isolation between the two species was not an issue in the ex situ collection at WBG. The results suggest an opportunity for pollen transfer between species and a potential risk of genetic introgression and loss of genetic identity of open-pollinated seeds produced in the ex situ collection of these two endangered species. An artificial reciprocal cross between S. xylocarpa and S. rehderiana confirmed that the two congener species could readily set seeds, indicating no post-pollination barriers to hybridization and the importance of spatial isolation as a barrier to inter-specific crossing. Therefore, to manage these crossable species with overlapping flowering times and shared pollination vectors in ex situ facilities, spatial isolation should be carefully considered to minimize the possibility of spontaneous hybridization. |
| WOS研究方向 | Biochemistry & Molecular Biology ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000238913900014 |
| 出版者 | BLACKWELL PUBLISHING |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/1172]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Huang, Hong-Wen |
| 作者单位 | 1.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kang, Ming,Ye, Qi-Gang,Yao, Xiao-Hong,et al. Potential risk of hybridization in ex situ collections of two endangered species of Sinoiackia Hu (Styracaceae)[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2006,48(7):867-872. |
| APA | Kang, Ming,Ye, Qi-Gang,Yao, Xiao-Hong,Zhang, Sheng-Ju,&Huang, Hong-Wen.(2006).Potential risk of hybridization in ex situ collections of two endangered species of Sinoiackia Hu (Styracaceae).JOURNAL OF INTEGRATIVE PLANT BIOLOGY,48(7),867-872. |
| MLA | Kang, Ming,et al."Potential risk of hybridization in ex situ collections of two endangered species of Sinoiackia Hu (Styracaceae)".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 48.7(2006):867-872. |
入库方式： OAI收割
来源：武汉植物园
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