𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Mitotically unstable polyploids in the yeast Pichia guilliermondii

✍ Scribed by Dr. U. Klinner; F. Böttcher

Book ID
102388640
Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
497 KB
Volume
32
Category
Article
ISSN
0233-111X

No coin nor oath required. For personal study only.

✦ Synopsis

Attempts to obtain triploids or tetraploids of P. guillierrnondii by sexual hybridization led to mitotically stable hybrids. However, their DNA content per cell was not higher than in diploids. The results of random spore analysis demonstrate that these hybris were in fact aneuploids which obviously suffered drastic chromosome losses immediately after mating. This phenomenon could have been caused either by aneuploidy already present in the parental strains or it might have been due to a general inability of P. guilliermondii to maintain a polyploid genome.

📜 SIMILAR VOLUMES

Transformation of the industrially impor
Transformation of the industrially important yeasts Candida maltosa and Pichia guilliermondii
✍ Dr. G. Kunze; C. Petzoldt; R. Bode; I. A. Samsonova; F. Böttcher; D. Birnbaum 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 260 KB

Saccharomyces cerevisiae, Canddda rnaltosa and Pichia guilliermondii have been transformcd at different frequencies by the plasmid pYe(ARCT4)411 which carried the Sacch. cereviaiae ARC4 gene inserted into p BR322. Our results strongly suggest that the transformants possessed extrachromosomally maint