Australasian Plant Pathology

, Volume 43, Issue 2, pp 161–165 | Cite as

Development of microsatellite and mating type markers for the pine needle pathogen Lecanosticta acicola

  • J. Janoušek
  • S. Krumböck
  • T. Kirisits
  • R. E. Bradshaw
  • I. Barnes
  • L. Jankovský
  • C. Stauffer
Article

Abstract

Lecanosticta acicola is an ascomycete that causes brown spot needle blight of pine species in many regions of the world. This pathogen is responsible for a major disease of Pinus palustris in the USA and is a quarantine organism in Europe. In order to study the genetic diversity and patterns of spread of L. acicola, eleven microsatellite markers and two mating type markers were developed. An enrichment protocol was used to isolate microsatellite-rich DNA regions, and 18 primer pairs were designed to flank these regions, of which eleven were polymorphic. A total of 93 alleles were obtained across all loci from forty isolates of L. acicola from the USA with an allelic diversity range of 0.095 to 0.931 per locus. Cross-species amplification with some of the markers was obtained with L. gloeospora, L. guatemalensis and Dothistroma septosporum, but not with D. pini. Mating type (MAT) markers amplifying both idiomorphs were also developed to determine mating type distribution in populations. These markers were designed based on alignments of both idiomorphs of nine closely related plant pathogens, and a protocol for multiplex PCR amplification of the MAT loci was optimised. The MAT markers are not species specific and also amplify the MAT loci in Dothistroma septosporum, D. pini, L. gloeospora and L. guatemalensis. Both types of genetic markers developed in this study will be valuable for future investigations of the population structure, genetic diversity and invasion history of L. acicola on a global scale.

Keywords

Mycosphaerella dearnessii Mating type markers Microsatellite Cross-species amplification Fungi Forest pathogen 

Supplementary material

13313_2013_256_MOESM1_ESM.pdf (62 kb)
Online Resource 1Positions of the specific mating type primers. Primer positions are indicated (arrows) in full-length idiomorphs of the putative MAT gene of D. pini (GenBank No.: DQ915449.1, DQ915451.1) as the complete L. acicola MAT region sequences are not available. Putative genes (alpha domain-containing and HMG domain-containing) are represented by grey boxes; coding sequences are represented by black boxes. (PDF 62 kb)
13313_2013_256_MOESM2_ESM.pdf (66 kb)
Online Resource 2PCR amplicons of parts of the MAT1-1-1 and MAT1-2 idiomorphs of Lecanosticta acicola obtained using the MAT primers in multiplex PCR. (PDF 67 kb)

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Copyright information

© Australasian Plant Pathology Society Inc. 2013

Authors and Affiliations

  • J. Janoušek
    • 1
  • S. Krumböck
    • 2
  • T. Kirisits
    • 2
  • R. E. Bradshaw
    • 3
  • I. Barnes
    • 4
  • L. Jankovský
    • 1
  • C. Stauffer
    • 2
  1. 1.Department of Forest Protection and Wildlife ManagementFaculty of Forestry and Wood Technology, Mendel University in BrnoBrnoCzech Republic
  2. 2.Institute of Forest Entomology, Forest Pathology and Forest Protection, Department of Forest and Soil SciencesUniversity of Natural Resources and Life Sciences, Vienna (BOKU)ViennaAustria
  3. 3.Bio-Protection Research Centre, Institute of Fundamental Sciences, College of SciencesMassey UniversityPalmerston NorthNew Zealand
  4. 4.Department of GeneticsForestry and Agricultural Biotechnology Institute (FABI), University of PretoriaPretoriaSouth Africa

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