Diaporthe amygdali Udayanga, Crous, K. D. Hyde

Diaporthe amygdali (Delacr.) Udayanga, Crous, K. D. Hyde, Fungal Divers 56: 166 (2012) Suppl. material 2 Specimens examined. China • Yunnan Province, Kunming City, from diseased branches of J. regia., Y. Ding, M. Li and L. L. Zhao, 23 February 2024 (YN-6, culture CGMCC 3.27752; YN-2, culture CGMCC 3.28500). Notes. Diaporthe amygdali was first described as Fusicoccum amygdali Delacr., causing cankers on almonds in France (Delacroix 1905). Udayanga et al. (2012) assigned F. amygdali to Diaporthe as D. amygdali. Dissanayake et al. (2024) verify D. amygdali is a single species rather than a species complex. Phylogenetically, two isolates clustered together with the ex-type isolates of D. amygdali CBS 126679 with middle statistical (62 % / 0.87 / 62 %) (Fig. 4); the base pair similarity shows 98.9 % (464 / 469) on cal, 99.3 % (449 / 452) on his, 99 % (519 / 524) on ITS, 99.4 % (327 / 329) on tef 1 - α, and 99.8 % (469 / 470) on tub 2 compared to the ex-type of D. amygdali. Based on sequence data and morphology, these isolates were confirmed to belong to D. amygdali (Table 1). Thus far, D. amygdali has been reported to cause walnut branch disease in Southern Spain and Shandong province in China (Meng et al. 2018, López-Moral et al. 2020). In this study, D. amygdali were isolated from Yunnan Province.