Naumov G I, Kondrat'eva V I, Naumova E S
Genetika. 2009 Dec;45(12):1609-15.
Genetic hybridization analysis was conducted with 16 natural Zygowilliopsis strains isolated in different geographical regions and maintained in collections under species names Z. californica, Hansenula dimennae, and Pichia populi. Genetic relatedness was determined on the basis of mating, viability of hybrid progeny, and meiotic recombination of markers. Four new biological species are recognized in the former monotypic genus Zygowilliopsis. Species Z. californica and Zygowilliopsis sp. 3 probably include divergent geographical populations. It is necessary to reconsider the species composition of the genus Zygowilliopsis and generic assignment of P. populi yeasts. Genetic and molecular identifications of the Zygowilliopsis species are in perfect agreement.
对16株从不同地理区域分离得到并保藏于菌种保藏中心、被鉴定为加利福尼亚合囊酵母（Z. californica）、迪氏汉逊酵母（Hansenula dimennae）和杨树毕赤酵母（Pichia populi）的自然合囊酵母属菌株进行了遗传杂交分析。基于交配情况、杂交后代的活力以及标记的减数分裂重组来确定遗传相关性。在以前的单型合囊酵母属中识别出了4个新的生物种。加利福尼亚合囊酵母（Z. californica）和合囊酵母属物种3（Zygowilliopsis sp. 3）可能包含不同的地理种群。有必要重新考虑合囊酵母属的物种组成以及杨树毕赤酵母的属归属。合囊酵母属物种的遗传和分子鉴定结果完全一致。
