Meiosis in Sordaria fimicola

Kingdom: Fungi

Phylum: Ascomycota

• Know how to identify crossing

over (recombinants).

• Know how to determine map

distances (between

centromere and gene as well

as between genes).

Perithecium (fruiting body)

breaks open to release asci

Sordaria fimicola

• bears its sexual (meiotic) ascospores in a

sac called an ascus

• asci are borne in a special fruiting structure

called a perithecium

Sordaria life cycle

mating

meiosis

Be able to draw

out different

possible

recombination

events

What you might observe in your asci:

http://www.biologyjunction.com/sordaria_lab_pictures.htm

http://www.biologyjunction.com/sordaria_lab_pictures.htm

Be able to identify recombinants.

Map Units

http://www.phschool.com/science/biology_plac

e/labbench/lab3/analysis2.html