1887

Abstract

Two new species of the ascosporic yeast genus were isolated from nectaries and associated muscoid flies of flowers from the common milkweed () in North America, and are described as [type strain=PYCC 4650=CBS 9134=NRRL Y-27243=UWO(PS) 86A4.1] and [type strain=PYCC 4605=CBS 9131=NRRL Y-27242=UWO(PS) 7ASB2.3]. As with the previously described , has vegetative cells with an ‘aeroplane’ or cross-like configuration, produces ovoid chlamydospores and forms ellipsoidopedunculate asci with two acicular ascospores. is distinguished from other species by formation of club-shaped asci with 1–2 thick clavate ascospores. The phylogenetic positions of the proposed new species within were determined from sequence analysis of the D1/D2 domain of 26S rDNA. The new species show low nuclear DNA relatedness with neighbouring taxa.

Keyword(s): nDNA, nuclear DNA
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2003-09-01
2019-10-15
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