A question for Pombe people!

Steve K. Cho cho2 at simmons.swmed.edu
Fri Dec 15 16:25:47 EST 2000


Hello, people!

I have a classical yeast genetics question that I am not sure.
The problem is I have a heterozygote knock-out diploid cells in h90 background (homothallic strain). {It's a long story why I didn't start with a heterothallic strain.}
Anyway, this mating type switching causes some potential problem. So, I thought about crossing with heterothalic strain to move the knocked-out allele to the heterothallic background. Then, I got confused. 
h90 cells are h90 leu1-32,ura4D18, ade6-M210/h90 leu1-32,ura4D18,ade6-M210, KanMX6(G418 selection)::my gene. I want to have cells in the genotype of h90(+) leu1-32, ura4D18, ade6M210/h- leu1-32,ura4D18, ade6M216 KanMX6::my gene. So, I can select the diploids using Ade marker. Then, I would like to isolate  haploid cells of h- leu1-32, ura4D18,ade6M216, KanMX6::my gene. My gene is located on 2nd chromosome which mat1,2,3 genes are located. I got more confused at this point whether this can be done or not.

I am looking forward some generous explanations about this.

Sincerely,

Steve K. Cho

Hamon Center for Therapeutic Oncology Research
The University of Texas Southwestern Medical Center at Dallas

NB8.104
5323 Harry Hines Blvd.
Dallas, Tx 75390-8593

Lab: (214)648-4912
Fax: (214)648-4940
e-mail: cho2 at simmons.swmed.edu






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