| タイトル |
-
en
Predominance of clonal reproduction, but recombinant origins of new genotypes in the free-floating aquatic bladderwort Utricularia australis f. tenuicaulis (Lentibulariaceae)
|
| 作成者 |
|
| アクセス権 |
open access |
| 権利情報 |
-
en
The original publication is available at www.springerlink.com
|
| 主題 |
-
Other
en
AFLP
-
Other
en
Aquatic plant
-
Other
en
Character compatibility analysis
-
Other
en
Genotypic diversity
-
Other
en
Sexual and clonal reproduction
-
Other
en
Somatic mutation
-
NDC
471
|
| 内容注記 |
-
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.
|
| 出版者 |
en
Springer Tokyo
|
| 日付 |
|
| 言語 |
|
| 資源タイプ |
journal article |
| 出版タイプ |
AM |
| 資源識別子 |
HDL
http://hdl.handle.net/2115/14628
|
| 関連 |
-
isVersionOf
DOI
https://doi.org/10.1007/s10265-006-0282-2
-
PMID
16724164
|
| 収録誌情報 |
-
-
en
Journal of Plant Research
-
巻119
号4
開始ページ357
終了ページ362
|
| ファイル |
|
| コンテンツ更新日時 |
2023-07-26 |
