国立研究開発法人 国際農林水産業研究センター | JIRCAS

Molecular Re-identification of Strains of the <i>Colletotrichum acutatum </i>Species Complex Deposited in the NIAS Genebank and Morphological Characteristics of its Member Species

JARQ : Japan Agricultural Research Quarterly
ISSN
00213551
書誌レコードID(総合目録DB)
AA0068709X
本文フルテキスト

Recently, nine phylogenetic groups were proposed for a plurivorous fungus, Colletotrichum acutatum by some researchers. Some of them were named as C. simmondsii, C. fioriniae, C. acutatumsensu stricto and C. carthami based on morphology and phylogenetic analyses of β-tubulin-2 gene partial sequences. We re-identified 170 strains deposited as C. acutatum in the NIAS Genebank, Japan based on phylogenetic analysis with the β-tubulin-2 gene sequences. Eighty strains with reddish colony colors and relatively uniform conidia belonged to C. fioriniae, 37 with a grayish to yellowish color and short conidia to C. simmondsii, 25 with a blackish to cream color and short conidia to C. carthami, 12 with a cream to pale orange color and narrow conidia to ‘C. acutatum group A2-P’ newly designated in this paper, 5 with a brownish to orange color and larger conidia to C. acutatum group A4, and 11 to other species of Colletotrichum. No strain of C. acutatum s. str. was found. A dichotomous key to the member species and groups was designated based on reverse colony color and conidial morphology. Because pathogenic strains of 18 host plants were re-identified, updating of pathogen names was proposed. Ten of them should be changed to C. fioriniae, and the pathogens of each five host plants such as strawberry and apple should be replaced with 2 to 3 species or the group. Sweet pepper pathogen was tentatively classified into C. acutatum group A2-P.

刊行年月2013-07-01
作成者SATO ToyozoMORIWAKI JoujiMISAWA Tomoo
著者キーワード

β-tubulin-2 gene

colony color

conidial morphology

dichotomous key

phylogenetic analysis

公開者Japan International Research Center for Agricultural Sciences
データ作成日2013-07-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
47
3
開始ページ295
終了ページ305
DOI10.6090/jarq.47.295
権利Japan International Research Center for Agricultural Sciences
言語eng