<abstract xmlns="http://www.w3.org/1999/xhtml">

This paper presents a current study on the morphology, genetic variability, and ecological requirements of the gametophytically diploid <italic>S. denticulatum</italic> (Bryophyta, Sphagnaceae). Its broad variations in morphology and physiology, coupled with its low genetic variability, may be explained by epigenetic remodeling in response to environmental heterogeneity.Phenotypes initiated via a plastic response can be canalized in the stable and predictable conditions on the bottom of <italic>Lobelia</italic> lakes. The problem of the different development of these isolated populations is a matter for further taxonomic studies and discussion.Taking into account the great physiological tolerance and massive development of <italic>S. denticulatum</italic>, predominantly in man-made and man-modified habitats, the question arises: how far should we go to protect this species? This is particularly important at sites where it threatens the survival of other protected plants.
</abstract>

This paper presents a current study on the morphology, genetic variability, and ecological requirements of the gametophytically diploid S. denticulatum (Bryophyta, Sphagnaceae). Its broad variations in morphology and physiology, coupled with its low genetic variability, may be explained by epigenetic remodeling in response to environmental heterogeneity.Phenotypes initiated via a plastic response can be canalized in the stable and predictable conditions on the bottom of Lobelia lakes. The problem of the different development of these isolated populations is a matter for further taxonomic studies and discussion.Taking into account the great physiological tolerance and massive development of S. denticulatum, predominantly in man-made and man-modified habitats, the question arises: how far should we go to protect this species? This is particularly important at sites where it threatens the survival of other protected plants.

The effect of the ploidy level and genetic background of <italic>Sphagnum denticulatum</italic> on its morphology and ecological requirements

Oceanological and Hydrobiological Studies

The effect of the ploidy level and genetic background of  on its morphology and ecological requirements

This paper presents a current study on the morphology, genetic variability, and ecological requirements of the gametophytically diploid S. denticulatum...

The effect of the ploidy level and genetic background of Sphagnum denticulatum on its morphology and ecological requirements

Publié en ligne: 24 déc. 2009

Pages: 153 - 164

DOI: https://doi.org/10.2478/v10009-009-0052-2

Mots clés
polyploidy, morphological variability, genetic variability, ecological requirements, epigenetic remodeling

This content is open access.