dc.contributor.author |
Van der Nest, Magrieta Aletta
|
|
dc.contributor.author |
Steenkamp, Emma Theodora
|
|
dc.contributor.author |
Wilken, Pieter Markus
|
|
dc.contributor.author |
Stenlid, J.
|
|
dc.contributor.author |
Wingfield, Michael J.
|
|
dc.contributor.author |
Wingfield, Brenda D.
|
|
dc.contributor.author |
Slippers, Bernard
|
|
dc.date.accessioned |
2013-10-02T07:05:08Z |
|
dc.date.available |
2013-10-02T07:05:08Z |
|
dc.date.issued |
2013-06 |
|
dc.description.abstract |
Mutualism between microbes and insects is common and alignment of the reproductive
interests of microbial symbionts with this lifestyle typically involves clonal reproduction
and vertical transmission by insect partners. Here the Amylostereum funguseSirex woodwasp
mutualism was used to consider whether their prolonged association and predominance
of asexuality have affected the mating system of the fungal partner. Nucleotide
information for the pheromone receptor gene rab1, as well as the translation elongation
factor 1a gene and ribosomal RNA internal transcribed spacer region were utilized. The
identification of rab1 alleles in Amylostereum chailletii and Amylostereum areolatum populations
revealed that this gene is more polymorphic than the other two regions, although
the diversity of all three regions was lower than what has been observed in free-living
Agaricomycetes. Our data suggest that suppressed recombination might be implicated in
the diversification of rab1, while no evidence of balancing selection was detected. We
also detected positive selection at only two codons, suggesting that purifying selection is
important for the evolution of rab1. The symbiotic relationship with their insect partners
has therefore influenced the diversity of this gene and influenced the manner in which selection
drives and maintains this diversity in A. areolatum and A. chailletii. |
en_US |
dc.description.librarian |
hb2013 |
en_US |
dc.description.sponsorship |
The National Research Foundation (NRF), members of the Tree Pathology Cooperative
Programme (TPCP) and the THRIP initiative of the Department of Trade and Industry
(DTI), South Africa. |
en_US |
dc.description.uri |
http://www.elsevier.com/locate/funbio |
en_US |
dc.identifier.citation |
Van der Nest, MA, Steenkamp, ET, Wilken, PM, Stenlid, J, Wingfield, MJ, Wingfield, BD & Slippers, B 2013, 'Mutualism and asexual reproduction influence recognition genes in a fungal symbiont', Fungal Biology, vol. 117, no.6, pp. 439-450. |
en_US |
dc.identifier.issn |
1878-6146(print) |
|
dc.identifier.issn |
1878-6162 (online) |
|
dc.identifier.other |
10.1016/j.funbio.2013.05.001 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/31872 |
|
dc.language.iso |
en |
en_US |
dc.publisher |
Elsevier |
en_US |
dc.rights |
© 2013 The British Mycological Society. Published by Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Fungal Biology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Fungal Biology, vol.117, no. 6, pp. 439-450, 2013. doi.: 10.1016/j.funbio.2013.05.001 |
en_US |
dc.subject |
Amylostereum areolatum |
en_US |
dc.subject |
Pheromone receptor and evolution |
en_US |
dc.subject |
Sirex noctilio |
en_US |
dc.subject |
Symbiosis |
en_US |
dc.title |
Mutualism and asexual reproduction influence recognition genes in a fungal symbiont |
en_US |
dc.type |
Postprint Article |
en_US |