The causal agents of witches' broom and frosty pod rot of cacao (chocolate, Theobroma cacao) form a new lineage of Marasmiaceae
The causal agents of witches' broom and frosty pod rot of cacao (chocolate, Theobroma cacao) form a new lineage of Marasmiaceae
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DOI：
10.3852/mycologia.97.5.1012
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发表时间：
2005-09-01
期刊：
影响因子：
2.8
通讯作者：
Phillips-Mora, W
中科院分区：
文献类型：
--
作者：
Aime, MC;Phillips-Mora, W
热带美洲巧克力的来源——可可（Theobroma cacao）的两种最具破坏性的疾病是由真菌 Crinipellis perniciosa（巫婆扫帚病）和 Moniliophthora roreri（霜荚腐烂病或念珠菌病）引起的。尽管这些真菌对农业、社会经济和环境产生影响，但其生命周期的大部分方面仍是未知的，并且 M. roreri 的系统发育关系尚未最终确定。在本文中，对五个核基因区域（28S rDNA、18S rDNA、ITS、RPB1 和 EF1-alpha）进行的广泛系统发育分析证实，C. perniciosa 和 M. roreri 是属于 Marasmiaceae (euagarics) 的姐妹类群。此外，这些类群构成了科内独立且独特的谱系 0 的一部分。该谱系包括生物营养真菌 Moniliophthora perniciosa 梳。十一月和 M. roreri，以及一种未描述的内生物种。念珠霉属的姐妹属。包括 Marasmius、Crinipellis 和 Chaetocalathus，它们主要由腐生凋落物真菌组成。
The two most devastating diseases of cacao (Theobroma cacao)-the Source of chocolate-in tropical America are caused by the fungi Crinipellis perniciosa (witches' broom disease) and Moniliophthora roreri (frosty pod rot or moniliasis disease). Despite the agricultural, socio-economic and environmental impact of these fungi, most aspects of their life cycles are unknown, and the phylogenetic relationships of M. roreri have yet to be conclusively established. In this paper, extensive phylogenetic analyses of five nuclear gene regions (28S rDNA, 18S rDNA, ITS, RPB1, and EF1-alpha) confirm that C. perniciosa and M. roreri are sister taxa that belong in the Marasmiaceae (euagarics). Furthermore, these taxa form part of a separate and distinct lineage 0 within the family. This lineage includes the biotrophic fungi Moniliophthora perniciosa comb. nov. and M. roreri, as well as one undescribed endophytic species. The sister genera to Moniliophthora. are Marasmius, Crinipellis and Chaetocalathus, which consist mainly of saprotrophic litter fungi.