Microspatial genetic divesity of Dothistroma septosporum

Wojciech Kraj , Tadeusz Kowalski

Abstract

The distribution of genetic diversity in a local population of Dothistroma septosporum was determined on a microspatial geographical scale. The study was conducted in a seed orchard of Pinus nigra divided into four plots, each of 0.84 ha in area. Ninety-two isolates were obtained from needles with red band needle blight symptoms. Molecular variance, Mantel test and autocorrelation spatial analyses were performed with the use of random amplified microsatellites markers to test the null hypothesis of a random distribution of genotypes. The groups of isolates from individual plots demonstrated small differences as regards intrapopulation variation. The mean contribution of polymorphic loci for isolate groups was almost 77%, genetic diversity 0.270, while the Shannon coefficient was 0.389. The Mantel test demonstrated a significant, positive correlation between Huff's genetic distance and geographical distance. Significant spatial genetic structure was detected with autocorrelation coefficients being significant in the first two distance classes up to about 8–12 m.
Author Wojciech Kraj (FoF / DoFP)
Wojciech Kraj,,
- Department of Forest Pathology
, Tadeusz Kowalski (FoF / DoFP)
Tadeusz Kowalski,,
- Department of Forest Pathology
Journal seriesForest Pathology, ISSN 1437-4781, (A 30 pkt)
Issue year2013
Vol43
No1
Pages42-50
ASJC Classification2303 Ecology; 1107 Forestry
DOIDOI:10.1111/j.1439-0329.2012.00791.x
URL http://onlinelibrary.wiley.com/doi/10.1111/j.1439-0329.2012.00791.x/epdf
Internal identifierWL/12/8
Languageen angielski
Score (nominal)30
Score sourcejournalList
Publication indicators WoS Citations = 5; Scopus SNIP (Source Normalised Impact per Paper): 2013 = 0.927; WoS Impact Factor: 2013 = 1.485 (2) - 2013=1.53 (5)
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