New species from the Fusarium solani species complex derived from perithecia and soil in the old world tropics

F. Ameena Nalim, Gary J. Samuels, Ravi L. Wijesundera, David Michael Geiser

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

A large collection of strains belonging to the Fusarium solani species complex (FSSC) was isolated from soil and perithecia in primary forests in Sri Lanka (from fallen tree bark) and tropical Australia (Queensland, from fallen tree fruits and nuts). Portions of the translation elongation factor 1- alpha (tef1) gene, the nuclear large subunit (NLSU) and internal transcribed spacer regions (ITS) of the nuclear ribosomal RNA genes were sequenced in 52 isolates from soil and perithecia. The FSSC was divided previously into three clades with some biogeographic structure, termed Clades 1, 2 and 3. All Sri Lankan and Australian soil isolates were found to be members of Clade 3, most grouping with the cosmopolitan soil-associated species F. falciforme. All but two Sri Lankan perithecial isolates were associated with a set of five divergent phylogenetic lineages that were associated with Clade 2. Australian perithecial isolates resided in a subclade of Clade 3 where most of the previously defined mating populations of the FSSC reside. Isolates from perithecia and those cultured from soil were always members of different species lineages, even when derived from proximal locations. The previous biogeographic assignment of Clade 2 to South America is now expanded to the worldwide tropics. Sri Lanka appears to be an important center of diversity for the FSSC. Nectria haematococca is epitypified with a collection from the type locality in Sri Lanka; its anamorph is described as a new species, Fusarium haematococcum. Neocosmospora E.F. Smith is adopted as the correct genus for Nectria haematococca. These new species are described: F. kurunegalense/Neo. kurunegalensis, F. rectiphorus/Neo. rectiphora/, F. mahasenii/Neo. mahasenii/, F. kelerajum/Neo. keleraja.

Original languageEnglish (US)
Pages (from-to)1302-1330
Number of pages29
JournalMycologia
Volume103
Issue number6
DOIs
StatePublished - Nov 1 2011

Fingerprint

Fusarium solani
Fusarium
species complex
tropics
Soil
Sri Lanka
new species
Nectria
Fusarium eumartii
soil
Neocosmospora
Plant Bark
Peptide Elongation Factor 1
Nuclear RNA
center of diversity
Queensland
Nuts
tree fruits
South America
gene

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Physiology
  • Molecular Biology
  • Genetics
  • Cell Biology

Cite this

Nalim, F. Ameena ; Samuels, Gary J. ; Wijesundera, Ravi L. ; Geiser, David Michael. / New species from the Fusarium solani species complex derived from perithecia and soil in the old world tropics. In: Mycologia. 2011 ; Vol. 103, No. 6. pp. 1302-1330.
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New species from the Fusarium solani species complex derived from perithecia and soil in the old world tropics. / Nalim, F. Ameena; Samuels, Gary J.; Wijesundera, Ravi L.; Geiser, David Michael.

In: Mycologia, Vol. 103, No. 6, 01.11.2011, p. 1302-1330.

Research output: Contribution to journalArticle

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