Notes and Comment in 1971

Competition in Drosophila I: A case of stabilising selection

• Anne McGill
• Kenneth Mather

The breeding system of Arabidopsis thaliana

• J W Snape
• M J Lawrence

Pachytene chromosome morphology at different ploidy levels in Medicago

• C B Gillies
• K Lesins

The effect of unequal mating frequencies on the variance effective number in random mating populations

• P Stam

Multiple phosphoglucomutase alleles in Anopheles stephensi

• L Bullini
• M Coluzzi
• C Santolamazza

Extreme-environment heterosis and genetic loads

• P A Parsons

The genetic organisation of populations of the inbreeding species Lolium temulentum

• M D Hayward
• J C Jackson

Evolutionary genetics research reports

• John R G Turner

Fine control of genetic recombination in yeast

• G Simchen
• N Ball
• I Nachshon

The fifth chromosome histocompatibility types of mouse strains Hg/Hu and C3Hf/A

• Peter Hull