Genetic diversity of the moss Plagiomnium affine in forests of contrasting age.

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Genetic diversity of the moss Plagiomnium affine in forests of contrasting age. / Cronberg, Nils; Wyatt, Robert; Andersson, Kjell.

In: Lindbergia, Vol. 30, No. 2, 2005, p. 49-58.

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Cronberg, Nils ; Wyatt, Robert ; Andersson, Kjell. / Genetic diversity of the moss Plagiomnium affine in forests of contrasting age. In: Lindbergia. 2005 ; Vol. 30, No. 2. pp. 49-58.

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TY - JOUR

T1 - Genetic diversity of the moss Plagiomnium affine in forests of contrasting age.

AU - Cronberg, Nils

AU - Wyatt, Robert

AU - Andersson, Kjell

PY - 2005

Y1 - 2005

N2 - We screened six populations of the clonal forest floor moss Plagiomnium affine from forests of different ages for genetic variation at 23 allozyme loci. Samples consisting of two adjacent, unconnected shoots were taken at regular intervals along one transect from each population. Transect lengths varied from 22 to 52 m, depending on the size of the local populations. From a sample of 602 shoots, we detected a total of 16 haplotypes, of which two were widespread and 12 were unique to single populations. Allelic variation, as measured by allelic richness and Nei’s allelic diversity (HS), was significantly correlated with forest age, when calculated at the ramet level, and nearly so when calculated at the genet level. Widespread haplotypes dominated the younger forest stands, whereas local haplotypes had a higher abundance in older forest stands. Together, these results indicate that populations are subject to continuous recruitment and that genetic variation accumulates as the forest ages.

AB - We screened six populations of the clonal forest floor moss Plagiomnium affine from forests of different ages for genetic variation at 23 allozyme loci. Samples consisting of two adjacent, unconnected shoots were taken at regular intervals along one transect from each population. Transect lengths varied from 22 to 52 m, depending on the size of the local populations. From a sample of 602 shoots, we detected a total of 16 haplotypes, of which two were widespread and 12 were unique to single populations. Allelic variation, as measured by allelic richness and Nei’s allelic diversity (HS), was significantly correlated with forest age, when calculated at the ramet level, and nearly so when calculated at the genet level. Widespread haplotypes dominated the younger forest stands, whereas local haplotypes had a higher abundance in older forest stands. Together, these results indicate that populations are subject to continuous recruitment and that genetic variation accumulates as the forest ages.

M3 - Article

VL - 30

SP - 49

EP - 58

JO - Lindbergia

JF - Lindbergia

SN - 0105-0761

IS - 2

ER -