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  Mating system and clonal architecture: a comparative study in two marine angiosperms

Ruggiero, M. V., Capone, S., Pirozzi, P., Reusch, T. B. H., & Procaccini, G. (2005). Mating system and clonal architecture: a comparative study in two marine angiosperms. Evolutionary Ecology, 19(5), 487-499. doi:10.1007/s10682-005-0292-x.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-D99C-9 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-D99D-7
Genre: Journal Article

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ruggiero_2005.pdf (Publisher version), 230KB
 
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 Creators:
Ruggiero, Maria Valeria, Author
Capone, Stefano, Author
Pirozzi, Patrizia, Author
Reusch, Thorsten B. H.1, 2, Author              
Procaccini, Gabriele, Author
Affiliations:
1Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976547              
2Department Evolutionary Ecology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445634              

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Free keywords: Cymodocea nodosa; clonal architecture; dioecy; microsatellites; self-compatibility; Zostera noltii
 Abstract: In the present study, we compared the clonal architecture between two seagrass species, the dioecious Cymodocea nodosa and the hermaphroditic, self-compatible Zostera noltii, in order to verify the hypothesis that clonal growth strategies and resulting genet architecture are associated with mating system in clonal plants. It is expected that self-incompatible species should be associated to a guerrilla growth form, because of pollen limitation due to obligate outbreeding, while the ecologically advantageous phalanx strategy can be adopted in self-compatible species. Genotypic diversity and heterozygosity were also assessed in the two species. Sampling has been conducted in mixed stands, collecting shoots of the two species at the same points of the sampling grid, in order to even out any effects of environmental heterogeneity. Species-specific microsatellite loci have been used as molecular markers to identify clones and assess their spatial distribution in both species. As expected, we found an intermingled configuration of genets in the dioecious C. nodosa while Z. noltii was characterized by a clumped, `phalanx-type' distribution of clones. C. nodosa was characterized by higher genotypic diversity with regard to Z. noltii, while heterozygosity levels were comparable in the two species.

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Language(s): eng - English
 Dates: 2005-09
 Publication Status: Published in print
 Pages: -
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 Identifiers: eDoc: 245261
DOI: 10.1007/s10682-005-0292-x
Other: 2406/S 38415
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Title: Evolutionary Ecology
Source Genre: Journal
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Pages: - Volume / Issue: 19 (5) Sequence Number: - Start / End Page: 487 - 499 Identifier: ISSN: 0269-7653 (Paper)
ISSN: 1573-8477 (Online)