A re-evaluation of genus Chaetomidium based on molecular and morphological characters

Matthew D. Greif, Alberto M. Stchigel, Andrew N. Miller, Sabine M. Huhndorf

Research output: Contribution to journalArticle

Abstract

Chaetomidium, a genus in the Chaetomia-ceae, comprises 12 species that produce similar cleistothecial ascomata with a membranous, mostly pilose, peridium. Approximately six species of this genus produce some type of modified peridium composed of cephalothecoid plates that previous authors have hypothesized to be a homologous character within the genus. To better understand the phylogenetic affiliations of Chaetomidium and distribution of the cephalothecoid peridium within this genus we performed phylogenetic analyses with LSU, β-tubulin and rpb2 sequence data. The results of these analyses showed that Chaetomidium is polyphy-letic and should be restricted to its type, C. fimeti, and C. subfimeti. The remaining cephalothecoid and non-cephalothecoid species were scattered throughout the Chaetomiaceae and Lasiosphaeriaceae. The cepha-lothecoid species of Chaetomidium were distributed in three unrelated clades, suggesting that the morphological similarity among these particular species resulted from convergence instead of ancestry.

Original languageEnglish (US)
Pages (from-to)554-564
Number of pages11
JournalMycologia
Volume101
Issue number4
DOIs
StatePublished - Jul 1 2009

Fingerprint

Tubulin
Chaetomiaceae
Lasiosphaeriaceae
ascomata
phylogeny
tubulin
ancestry
phylogenetics
evaluation

Keywords

  • Cephalothecoid
  • Chaetomiaceae
  • Phylogeny
  • Sordariales
  • Systematics

ASJC Scopus subject areas

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

Cite this

A re-evaluation of genus Chaetomidium based on molecular and morphological characters. / Greif, Matthew D.; Stchigel, Alberto M.; Miller, Andrew N.; Huhndorf, Sabine M.

In: Mycologia, Vol. 101, No. 4, 01.07.2009, p. 554-564.

Research output: Contribution to journalArticle

Greif, Matthew D. ; Stchigel, Alberto M. ; Miller, Andrew N. ; Huhndorf, Sabine M. / A re-evaluation of genus Chaetomidium based on molecular and morphological characters. In: Mycologia. 2009 ; Vol. 101, No. 4. pp. 554-564.
@article{edcfaae805b244f6ac2983a6876ac39d,
title = "A re-evaluation of genus Chaetomidium based on molecular and morphological characters",
abstract = "Chaetomidium, a genus in the Chaetomia-ceae, comprises 12 species that produce similar cleistothecial ascomata with a membranous, mostly pilose, peridium. Approximately six species of this genus produce some type of modified peridium composed of cephalothecoid plates that previous authors have hypothesized to be a homologous character within the genus. To better understand the phylogenetic affiliations of Chaetomidium and distribution of the cephalothecoid peridium within this genus we performed phylogenetic analyses with LSU, β-tubulin and rpb2 sequence data. The results of these analyses showed that Chaetomidium is polyphy-letic and should be restricted to its type, C. fimeti, and C. subfimeti. The remaining cephalothecoid and non-cephalothecoid species were scattered throughout the Chaetomiaceae and Lasiosphaeriaceae. The cepha-lothecoid species of Chaetomidium were distributed in three unrelated clades, suggesting that the morphological similarity among these particular species resulted from convergence instead of ancestry.",
keywords = "Cephalothecoid, Chaetomiaceae, Phylogeny, Sordariales, Systematics",
author = "Greif, {Matthew D.} and Stchigel, {Alberto M.} and Miller, {Andrew N.} and Huhndorf, {Sabine M.}",
year = "2009",
month = "7",
day = "1",
doi = "10.3852/08-200",
language = "English (US)",
volume = "101",
pages = "554--564",
journal = "Mycologia",
issn = "0027-5514",
publisher = "Allen Press Inc.",
number = "4",

}

TY - JOUR

T1 - A re-evaluation of genus Chaetomidium based on molecular and morphological characters

AU - Greif, Matthew D.

AU - Stchigel, Alberto M.

AU - Miller, Andrew N.

AU - Huhndorf, Sabine M.

PY - 2009/7/1

Y1 - 2009/7/1

N2 - Chaetomidium, a genus in the Chaetomia-ceae, comprises 12 species that produce similar cleistothecial ascomata with a membranous, mostly pilose, peridium. Approximately six species of this genus produce some type of modified peridium composed of cephalothecoid plates that previous authors have hypothesized to be a homologous character within the genus. To better understand the phylogenetic affiliations of Chaetomidium and distribution of the cephalothecoid peridium within this genus we performed phylogenetic analyses with LSU, β-tubulin and rpb2 sequence data. The results of these analyses showed that Chaetomidium is polyphy-letic and should be restricted to its type, C. fimeti, and C. subfimeti. The remaining cephalothecoid and non-cephalothecoid species were scattered throughout the Chaetomiaceae and Lasiosphaeriaceae. The cepha-lothecoid species of Chaetomidium were distributed in three unrelated clades, suggesting that the morphological similarity among these particular species resulted from convergence instead of ancestry.

AB - Chaetomidium, a genus in the Chaetomia-ceae, comprises 12 species that produce similar cleistothecial ascomata with a membranous, mostly pilose, peridium. Approximately six species of this genus produce some type of modified peridium composed of cephalothecoid plates that previous authors have hypothesized to be a homologous character within the genus. To better understand the phylogenetic affiliations of Chaetomidium and distribution of the cephalothecoid peridium within this genus we performed phylogenetic analyses with LSU, β-tubulin and rpb2 sequence data. The results of these analyses showed that Chaetomidium is polyphy-letic and should be restricted to its type, C. fimeti, and C. subfimeti. The remaining cephalothecoid and non-cephalothecoid species were scattered throughout the Chaetomiaceae and Lasiosphaeriaceae. The cepha-lothecoid species of Chaetomidium were distributed in three unrelated clades, suggesting that the morphological similarity among these particular species resulted from convergence instead of ancestry.

KW - Cephalothecoid

KW - Chaetomiaceae

KW - Phylogeny

KW - Sordariales

KW - Systematics

UR - http://www.scopus.com/inward/record.url?scp=67650883138&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67650883138&partnerID=8YFLogxK

U2 - 10.3852/08-200

DO - 10.3852/08-200

M3 - Article

C2 - 19623937

AN - SCOPUS:67650883138

VL - 101

SP - 554

EP - 564

JO - Mycologia

JF - Mycologia

SN - 0027-5514

IS - 4

ER -