Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.4102/abc.v49i1.2408 |
| Distribution, habitat profile and genetic variability of Namibian succulent Lithops ruschiorum | |
| Loots, Sonja1,2; Ritz, Christiane M.3; Schwager, Michaela3; Sehic, Jasna1; Herklotz, Veit3; Garkava-Gustavsson, Larisa1; Nybom, Hilde E.1 | |
| 通讯作者 | Loots, Sonja |
| 来源期刊 | BOTHALIA
 |
| ISSN | 0006-8241 |
| EISSN | 2311-9284 |
| 出版年 | 2019 |
| 卷号 | 49期号:1 |
| 英文摘要 | Background: The species-rich flora of southern Africa comprises a high number of endemics, including succulents such as the flowering stones in the genus Lithops, but conservation status for these species is not well underpinned because detailed field data and assessments of genetic diversity are lacking. Objectives: We wanted to assess plant abundance and identify factors that may affect survival in Lithops ruschiorum through carefully conducted field surveys, and to determine amount and partitioning of genetic variation by amplified fragment length polymorphism (AFLP) analysis. Method: Field surveys were carried out in nine populations in Namibia. The most meticulously studied population was divided into 51 sites, while another 43 sites were recognised in the remaining eight populations. At each site, occupied area and number of plants were recorded as well as altitude, aspect, slope, soil texture and substrate. Amplified fragment length polymorphism markers were employed to study 52 individuals from seven populations. Results: In total, 8465 individuals were recorded. Plant density and/or plant number was associated with aspect, slope, soil texture, substrate and geographic distance from the coast. Analysis of molecular variation showed that 95% of the variability occurs within populations. Genetic and geographic distances among populations were correlated suggesting an isolation-by-distance pattern. Conclusion: Results are concordant with a strong impact of fog-based precipitation on plant density in the coastal populations, whereas rain probably is more important at one population which is situated further inland. Within-population genetic variation was medium high as usually reported for perennial, outcrossing species, but the low population differentiation implies considerable gene flow and/or population fragmentation. |
| 英文关键词 | abundance AFLP desert biome molecular marker plant conservation plant inventory population genetics |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | Sweden ; Namibia ; Germany |
| 开放获取类型 | Green Submitted, gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000483913600001 |
| WOS关键词 | AIZOACEAE ; DENSITY ; FOG |
| WOS类目 | Plant Sciences |
| WOS研究方向 | Plant Sciences |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/214732 |
| 作者单位 | 1.Swedish Univ Agr Sci, Dept Plant Breeding, Alnarp, Sweden; 2.Minist Agr Water & Forestry Namibia, Natl Bot Res Inst, Windhoek, Namibia; 3.Senckenberg Museum Nat Hist Gorlitz, Gorlitz, Germany |
| 推荐引用方式 GB/T 7714 | Loots, Sonja,Ritz, Christiane M.,Schwager, Michaela,et al. Distribution, habitat profile and genetic variability of Namibian succulent Lithops ruschiorum[J],2019,49(1). |
| APA | Loots, Sonja.,Ritz, Christiane M..,Schwager, Michaela.,Sehic, Jasna.,Herklotz, Veit.,...&Nybom, Hilde E..(2019).Distribution, habitat profile and genetic variability of Namibian succulent Lithops ruschiorum.BOTHALIA,49(1). |
| MLA | Loots, Sonja,et al."Distribution, habitat profile and genetic variability of Namibian succulent Lithops ruschiorum".BOTHALIA 49.1(2019). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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