| Title |
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en
Predominance of clonal reproduction, but recombinant origins of new genotypes in the free-floating aquatic bladderwort Utricularia australis f. tenuicaulis (Lentibulariaceae)
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| Creator |
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| Accessrights |
open access |
| Rights |
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en
The original publication is available at www.springerlink.com
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| Subject |
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Other
en
AFLP
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Other
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Aquatic plant
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Other
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Character compatibility analysis
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Other
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Genotypic diversity
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Other
en
Sexual and clonal reproduction
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Other
en
Somatic mutation
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NDC
471
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| Description |
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Abstract
en
Aquatic plants are a biological group sharing several adaptations to aquatic conditions. The most striking evolutionary convergence in this group is the extensive reliance on clonal reproduction, which largely determines the patterns and process of evolution in aquatic plants. Utricularia australis f. tenuicaulis is a free-floating aquatic bladderwort that reproduces both sexually via seeds and clonally via turions and shoot fragments. Amplified fragment length polymorphism analysis was conducted on 267 ramets collected from 30 populations in Japan. The genotypic diversity within populations was extremely low, regardless of the geographical distribution range: the mean number of genotypes per population (G) was 1.4 and the mean genotypic diversity (D), including monoclonal populations, was 0.17. In contrast to the predominance of a few clones within populations, many of the populations investigated had different genotypes; a large portion of the genetic variation was explained by variation among populations. Character compatibility analysis clearly revealed that somatic mutations did not contribute to the origin of genotypic diversity in this aquatic bladderwort; instead, rare-to-sporadic sexual reproduction probably generated new genotypes. Thus, future studies should examine the role of sexual reproduction in this species from the viewpoint of long-term evolutionary benefits.
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| Publisher |
en
Springer Tokyo
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| Date |
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| Language |
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| Resource Type |
journal article |
| Version Type |
AM |
| Identifier |
HDL
http://hdl.handle.net/2115/14628
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| Relation |
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isVersionOf
DOI
https://doi.org/10.1007/s10265-006-0282-2
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PMID
16724164
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| Journal |
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en
Journal of Plant Research
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Volume Number119
Issue Number4
Page Start357
Page End362
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| File |
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| Oaidate |
2023-07-26 |
