Cylindrocarpon root rot: multi-gene analysis reveals novel species within the Ilyonectria radicicola species complex

被引：175

作者：

Cabral, Ana ^{[1
]}

Groenewald, Johannes Z. ^{[2
]}

Rego, Cecilia ^{[1
]}

Oliveira, Helena ^{[1
]}

Crous, Pedro W. ^{[2
,3
,4
]}

机构：

[1] Univ Tecn Lisboa, Inst Super Agron, CEER Biosyst Engn, P-1349017 Lisbon, Portugal

[2] CBS KNAW Fungal Biodivers Ctr, NL-3508 AD Utrecht, Netherlands

[3] Univ Utrecht, Dept Biol, NL-3584 CH Utrecht, Netherlands

[4] Wageningen Univ & Res Ctr WUR, Phytopathol Lab, NL-6708 PB Wageningen, Netherlands

来源：

MYCOLOGICAL PROGRESS | 2012年 / 11卷 / 03期

关键词：

Cylindrocarpon root rot; Nectria-like fungi; Phylogeny; Systematics; BLACK FOOT DISEASE; PHYLOGENETIC-RELATIONSHIPS; NEONECTRIA; ANAMORPHS; FUSARIUM; DESTRUCTANS; HYPOCREALES; NECTRIACEAE; GINSENG; GENERA;

D O I：

10.1007/s11557-011-0777-7

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Ilyonectria radicicola and its Cylindrocarpon-like anamorph represent a species complex that is commonly associated with root rot disease symptoms on a range of hosts. During the course of this study, several species could be distinguished from I. radicicola sensu stricto based on morphological and culture characteristics. DNA sequence analysis of the partial beta-tubulin, histone H3, translation elongation factor 1-alpha and nuclear ribosomal RNA-Internal Transcribed Spacer (nrRNA-ITS) genes were employed to provide further support for the morphological species resolved among 68 isolates associated with root rot disease symptoms. Of the various loci screened, nrRNA-ITS sequences were the least informative, while histone H3 sequences were the most informative, resolving the same number of species as the combined dataset across the four genes. Within the Ilyonectria radicicola species complex, 12 new taxa are delineated occurring on a diverse range of hosts, the most common being Cyclamen, Lilium, Panax, Pseudotsuga, Quercus and Vitis.

引用

页码：655 / 688

页数：34

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