CLONAL STRUCTURE AND GENETIC DIVERSITY OF THREE DESERT PHREATOPHYTES
文献类型：期刊论文
| 作者 | Vonlanthen ; Beatrix ; Zhang ; Ximing ; Bruelheide ; Helge |
| 刊名 | AMERICAN JOURNAL OF BOTANY
 |
| 出版日期 | 2010 |
| 卷号 | 97期号:2页码:234-242 |
| 关键词 | DECODON-VERTICILLATUS LYTHRACEAE SEXUAL REPRODUCTION GENOTYPIC DIVERSITY POPULATION-SIZE INBREEDING DEPRESSION SEEDLING RECRUITMENT ASEXUAL REPRODUCTION RANUNCULUS-REPENS TAKLAMAKAN DESERT ANCIENT WOODLAND |
| ISSN号 | 0002-9122 |
| 通讯作者 | Vonlanthen, B, Univ Halle Wittenberg, Inst Biol Geobot & Bot Garden, Kirchtor 1, D-06108 Halle, Saale, Germany |
| 中文摘要 | The objective of this paper was to assess clone sizes of three perennial desert plant species with AFLP markers and to relate them to clonal and genetic diversity and to hydroecology. The study was carried out at the southern rim of the Taklamakan Desert, where sexual regeneration is only possible shortly after rare flooding events, resulting in rarely established cohorts with subsequent extensive vertical growth and horizontal clonal spread. In this environment, repeated seedling establishment is excluded. We expected decreasing clonal and genetic diversity with increasing clone size and increasing distance to the groundwater table and a common response pattern among all study species. Maximum sizes of Populus euphratica and Alhagi sparsifolia clones were 121 ha and 6.1 ha, respectively, while Tamarix ramosissima clones reached a maximum size of only 38 m(2). In P. euphratica and A. sparsifolia, clonal diversity declined with increasing clone size and increasing distance to the groundwater table, while genetic diversity remained unaffected. Tamarix ramosissima differed from the other species because of a much smaller clonality. Clone size and clonal diversity were found to be good proxy variables for clone age. Despite the considerable age of the clones, genetic diversity is maintained in the populations. |
| 学科主题 | 细胞生物学 |
| 收录类别 | SCI |
| 公开日期 | 2011-08-19 |
| 源URL | [http://ir.xjlas.org/handle/365004/10010]  |
| 专题 | 新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据) |
| 推荐引用方式 GB/T 7714 | Vonlanthen,Beatrix,Zhang,et al. CLONAL STRUCTURE AND GENETIC DIVERSITY OF THREE DESERT PHREATOPHYTES[J]. AMERICAN JOURNAL OF BOTANY,2010,97(2):234-242. |
| APA | Vonlanthen,Beatrix,Zhang,Ximing,Bruelheide,&Helge.(2010).CLONAL STRUCTURE AND GENETIC DIVERSITY OF THREE DESERT PHREATOPHYTES.AMERICAN JOURNAL OF BOTANY,97(2),234-242. |
| MLA | Vonlanthen,et al."CLONAL STRUCTURE AND GENETIC DIVERSITY OF THREE DESERT PHREATOPHYTES".AMERICAN JOURNAL OF BOTANY 97.2(2010):234-242. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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