Evolution of parasitism in nematode-trapping fungi
Ahrén, Dag LU
and Tunlid, Anders
LU
(2003)
40th Annual Meeting of the Society-of-Nematologists
35(2).
p.194-197
- Abstract
- We are studying the evolution of parasitism in a group of soil-living ascomycetes that can grow as saprophytes as well as parasites by forming special morphological structures called traps. Analyses of 18S ribosomal DNA sequences have shown that these fungi form a monophyletic and isolated clade among the ascomycetes. The phylogenetic patterns within this clade are concordant with the morphology of the traps and separate species having adhesive traps (nets, knobs, and branches) from those having constricting rings. This suggests that these nematode-trapping fungi have a common ancestor, and that the ability to capture nematodes has been an important trait for further speciation and diversification within the clade. To obtain information on... (More)
- We are studying the evolution of parasitism in a group of soil-living ascomycetes that can grow as saprophytes as well as parasites by forming special morphological structures called traps. Analyses of 18S ribosomal DNA sequences have shown that these fungi form a monophyletic and isolated clade among the ascomycetes. The phylogenetic patterns within this clade are concordant with the morphology of the traps and separate species having adhesive traps (nets, knobs, and branches) from those having constricting rings. This suggests that these nematode-trapping fungi have a common ancestor, and that the ability to capture nematodes has been an important trait for further speciation and diversification within the clade. To obtain information on the genomic basis for this pattern, we recently started a large-scale sequencing project of the nematode-trapping fungus Monacrosporium haptotylum. This will allow the identification of genes uniquely expressed during the development of traps, and elucidate the molecular evolution Of Such genes within the nematode-trapping fungi clade. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/135710
- author
- Ahrén, Dag
LU
and Tunlid, Anders
LU
- organization
- publishing date
- 2003
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- expressed sequence tags, functional genomics, phylogeny
- host publication
- Journal of Nematology
- volume
- 35
- issue
- 2
- pages
- 194 - 197
- publisher
- Society of Nematologists
- conference name
- 40th Annual Meeting of the Society-of-Nematologists
- conference location
- Salt Lake City, Ut, United States
- conference dates
- 2001-08-24 - 2001-08-29
- external identifiers
-
- scopus:0042569141
- ISSN
- 0022-300X
- language
- English
- LU publication?
- yes
- id
- 6fe2c21c-c670-4828-9bd2-393109e53c80 (old id 135710)
- alternative location
- http://fulltext10.fcla.edu/DLData/SN/SN0022300X/0035_002/194.pdf
- date added to LUP
- 2016-04-01 16:11:48
- date last changed
- 2024-01-26 01:33:58
@inproceedings{6fe2c21c-c670-4828-9bd2-393109e53c80,
abstract = {{We are studying the evolution of parasitism in a group of soil-living ascomycetes that can grow as saprophytes as well as parasites by forming special morphological structures called traps. Analyses of 18S ribosomal DNA sequences have shown that these fungi form a monophyletic and isolated clade among the ascomycetes. The phylogenetic patterns within this clade are concordant with the morphology of the traps and separate species having adhesive traps (nets, knobs, and branches) from those having constricting rings. This suggests that these nematode-trapping fungi have a common ancestor, and that the ability to capture nematodes has been an important trait for further speciation and diversification within the clade. To obtain information on the genomic basis for this pattern, we recently started a large-scale sequencing project of the nematode-trapping fungus Monacrosporium haptotylum. This will allow the identification of genes uniquely expressed during the development of traps, and elucidate the molecular evolution Of Such genes within the nematode-trapping fungi clade.}},
author = {{Ahrén, Dag and Tunlid, Anders}},
booktitle = {{Journal of Nematology}},
issn = {{0022-300X}},
keywords = {{expressed sequence tags; functional genomics; phylogeny}},
language = {{eng}},
number = {{2}},
pages = {{194--197}},
publisher = {{Society of Nematologists}},
title = {{Evolution of parasitism in nematode-trapping fungi}},
url = {{http://fulltext10.fcla.edu/DLData/SN/SN0022300X/0035_002/194.pdf}},
volume = {{35}},
year = {{2003}},
}