Institutional Repository of Xishuangbanna Tropical Botanical Garden
| Low-copy nuclear DNA sequences reveal a predominance of allopolyploids in a New Zealand Asplenium fern complex | |
| Shepherd, LD; Perrie, LR; Brownsey, PJ | |
| 2008 | |
| Source Publication | MOLECULAR PHYLOGENETICS AND EVOLUTION
 |
| ISSN | 1055-7903 |
| Volume | 49Issue:1Pages:240-248 |
| Abstract | Recent generalisations about polyploidy in plants have been largely based on studies of angiosperms. A compelling group to compare with angiosperms is ferns, because of their high polyploidy. The bi-parental inheritance of nuclear DNA sequence markers makes them advantageous for investigating polyploid complexes, but few such markers have been available for ferns. We have used DNA sequences from the low-copy nuclear LFY locus to study an Asplenium polyploid complex. The New Zealand species of this Austral group comprise seven tetraploids and eight octoploids. LFY sequences indicate that allopolyploidy is much more predominant than previously thought, being implicated in the origins of seven of the octoploids. One of the tetraploids has had a central role, being a progenitor for five of the octoploids. All of the octoploids appear to have relatively recent origins, with the dynamic environmental conditions of the Pleistocene possibly playing a role in their formation and/or establishment. (C) 2008 Elsevier Inc. All rights reserved. |
| Keyword | Chloroplast Dna Phylogenetic Analysis Pteridophyta Evolution Angiosperms Polyploidy Ceterach Hybrids Flora Phylogeography |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/9143 |
| Collection | 文献共享 |
| Recommended Citation GB/T 7714 | Shepherd, LD,Perrie, LR,Brownsey, PJ. Low-copy nuclear DNA sequences reveal a predominance of allopolyploids in a New Zealand Asplenium fern complex[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2008,49(1):240-248. |
| APA | Shepherd, LD,Perrie, LR,&Brownsey, PJ.(2008).Low-copy nuclear DNA sequences reveal a predominance of allopolyploids in a New Zealand Asplenium fern complex.MOLECULAR PHYLOGENETICS AND EVOLUTION,49(1),240-248. |
| MLA | Shepherd, LD,et al."Low-copy nuclear DNA sequences reveal a predominance of allopolyploids in a New Zealand Asplenium fern complex".MOLECULAR PHYLOGENETICS AND EVOLUTION 49.1(2008):240-248. |
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| File Name/Size | DocType | Version | Access | License | ||
| Low-copy nuclear DNA（1039KB） | 开放获取 | CC BY-NC-SA | View Download | |||
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