Piecing together the taxonomic puzzle of Sphaerulina.

Fungal systematics and evolution Pub Date : 2024-12-01 Epub Date: 2024-06-07 DOI:10.3114/fuse.2024.14.11

A H Ujat, C Nakashima

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Abstract

Sphaerulina species are plant pathogenic fungi causing leaf spot diseases of various hosts, including arboreous and herbaceous plants. The morphological characteristics of their asexual morphs and leaf spot symptoms are like those of Septoria spp. Due to their similar morphology, species of Sphaerulina have largely been subsumed under Septoria s. lat. A recent revision of the genus Septoria based on morphological characteristics and phylogenetic relationships resulted in the separation of Sphaerulina from Septoria. This study reveals the diversity of the genus Sphaerulina in Japan, and the species relationships based on a multigene phylogenetic analysis. Moreover, results of our phylogenetic analysis revealed seven novel species (Sph. farfugii, Sph. hydrangeicola, Sph. idesiae, Sph. lapsanastri, Sph. miurae, Sph. styracis, and Sph. viburnicola) which are described, and two species (Sep. duchesnea and Sep. nambuana) which are transferred to the genus Sphaerulina. Citation: Ujat AH, Nakashima C (2024). Piecing together the taxonomic puzzle of Sphaerulina. Fungal Systematics and Evolution 14: 171-190. doi: 10.3114/fuse.2024.14.11.

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拼凑球形藻的分类谜题。

Sphaerulina是一种植物病原真菌，可引起各种寄主的叶斑病，包括乔木植物和草本植物。其无性形态的形态特征和叶斑病症状与Septoria spat相似，由于它们的形态相似，Sphaerulina的种类在很大程度上被归入Septoria s.lat。最近根据形态学特征和系统发育关系对Septoria属进行了修订，将Sphaerulina从Septoria中分离出来。本文通过多基因系统发育分析，揭示了日本Sphaerulina属植物的多样性和种间关系。此外，我们的系统发育分析结果发现了7个新种(Sph。farfugii,主任。hydrangeicola,主任。idesiae,主任。lapsanastri,主任。miurae,主任。styrastic和Sph。viburnicola)和两个种（Sep. duchesnea和Sep. nambuana）被转移到Sphaerulina属。引用本文：Ujat AH， Nakashima C（2024）。拼凑球形藻的分类谜题。真菌分类学与进化14:171-190。doi: 10.3114 / fuse.2024.14.11。

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Fungal systematics and evolution

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7.30

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