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Polyploidy and Speciation in Pteris (Pteridaceae)
Joint Authors
Liu, Ho-Yih
Chiang, Yu-Chung
Chao, Yi-Shan
Chiou, Wen-Liang
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-14
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The highest frequency of polyploidy among plants is considered to occur in the Pteridophytes.
In this study, we focused on polyploidy displayed by a specific fern taxon, the genus Pteris L.
(Pteridaceae), comprising over 250 species.
Cytological data from 106 Pteris species were reviewed.
The base number of chromosomes in Pteris is 29.
Polyploids are frequently found in Pteris, including triploids, tetraploids, pentaploids, hexaploids, and octoploids.
In addition, an aneuploid species, P.
deltodon Bak., has been recorded.
Furthermore, the relationship between polyploidy and reproductive biology is reviewed.
Among these 106 Pteris species, 60% exhibit polyploidy: 22% show intraspecific polyploidy and 38% result from polyploid speciation.
Apogamous species are common in Pteris.
Diploids are the most frequent among Pteris species, and they can be sexual or apogamous.
Triploids are apogamous; tetraploids are sexual or apogamous.
Most Pteris species have one to two ploidy levels.
The diverse ploidy levels suggest that these species have a complex evolutionary history and their taxonomic problems require further clarification.
American Psychological Association (APA)
Chao, Yi-Shan& Liu, Ho-Yih& Chiang, Yu-Chung& Chiou, Wen-Liang. 2012. Polyploidy and Speciation in Pteris (Pteridaceae). Journal of Botany،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-500533
Modern Language Association (MLA)
Chao, Yi-Shan…[et al.]. Polyploidy and Speciation in Pteris (Pteridaceae). Journal of Botany No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-500533
American Medical Association (AMA)
Chao, Yi-Shan& Liu, Ho-Yih& Chiang, Yu-Chung& Chiou, Wen-Liang. Polyploidy and Speciation in Pteris (Pteridaceae). Journal of Botany. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-500533
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-500533