Genome size expansion and the relationship between nuclear DNA content and spore size in the Asplenium monanthes fern complex (Aspleniaceae)
文献类型：期刊论文
| 作者 | Dyer, Robert J.; Pellicer, Jaume; Savolainen, Vincent4; Leitch, Ilia J.; Schneider, Harald1 |
| 刊名 | BMC PLANT BIOLOGY
 |
| 出版日期 | 2013 |
| 卷号 | 13 |
| 关键词 | Genome size Chromosome size DNA content C-value Monoploid Holoploid Polyploidy Asplenium monanthes Apomixis Spore size |
| ISSN号 | 1471-2229 |
| DOI | 10.1186/1471-2229-13-219 |
| 文献子类 | Article |
| 英文摘要 | Background: Homosporous ferns are distinctive amongst the land plant lineages for their high chromosome numbers and enigmatic genomes. Genome size measurements are an under exploited tool in homosporous ferns and show great potential to provide an overview of the mechanisms that define genome evolution in these ferns. The aim of this study is to investigate the evolution of genome size and the relationship between genome size and spore size within the apomictic Asplenium monanthes fern complex and related lineages. Results: Comparative analyses to test for a relationship between spore size and genome size show that they are not correlated. The data do however provide evidence for marked genome size variation between species in this group. These results indicate that Asplenium monanthes has undergone a two-fold expansion in genome size. Conclusions: Our findings challenge the widely held assumption that spore size can be used to infer ploidy levels within apomictic fern complexes. We argue that the observed genome size variation is likely to have arisen via increases in both chromosome number due to polyploidy and chromosome size due to amplification of repetitive DNA (e. g. transposable elements, especially retrotransposons). However, to date the latter has not been considered to be an important process of genome evolution within homosporous ferns. We infer that genome evolution, at least in some homosporous fern lineages, is a more dynamic process than existing studies would suggest. |
| 学科主题 | Plant Sciences |
| 出版地 | LONDON |
| WOS关键词 | CORRELATED EVOLUTION ; CHROMOSOME-NUMBERS ; FLOW-CYTOMETRY ; RETROTRANSPOSONS ; INFERENCE ; PTERIDOPHYTES ; PHYLOGENIES ; DYNAMICS ; BIOLOGY ; MRBAYES |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000332242100001 |
| 出版者 | BMC |
| 资助机构 | Natural History Museum in London ; Royal Botanic Gardens at Kew ; Chinese Academy of Science(Chinese Academy of Sciences) ; Royal Society(Royal Society of London) ; European Research Council(European Research Council (ERC)European Commission) ; Natural Environment Research Council(UK Research & Innovation (UKRI)Natural Environment Research Council (NERC)) |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27847]  |
| 专题 | 植物研究所_系统与进化植物学研究中心_系统与进化植物学研究中心_学位论文 |
| 作者单位 | 1.Pellicer, Jaume; Savolainen, Vincent; Leitch, Ilia J.] Royal Bot Gardens, Jodrell Lab, Richmond TW9 3AB, Surrey, England 2.Univ London Imperial Coll Sci Technol & Med, Ascot SL5 7PY, Berks, England 3.Dyer, Robert J.] Ctr Ecol & Hydrol, Wallingford OX10 8BB, Oxon, England 4.Nat Hist Museum, Dept Bot, London SW7 5BD, England 5.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dyer, Robert J.,Pellicer, Jaume,Savolainen, Vincent,et al. Genome size expansion and the relationship between nuclear DNA content and spore size in the Asplenium monanthes fern complex (Aspleniaceae)[J]. BMC PLANT BIOLOGY,2013,13. |
| APA | Dyer, Robert J.,Pellicer, Jaume,Savolainen, Vincent,Leitch, Ilia J.,&Schneider, Harald.(2013).Genome size expansion and the relationship between nuclear DNA content and spore size in the Asplenium monanthes fern complex (Aspleniaceae).BMC PLANT BIOLOGY,13. |
| MLA | Dyer, Robert J.,et al."Genome size expansion and the relationship between nuclear DNA content and spore size in the Asplenium monanthes fern complex (Aspleniaceae)".BMC PLANT BIOLOGY 13(2013). |
入库方式： OAI收割
来源：植物研究所
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