Induced androgenesis in tomato (Lycopersicon esculentum Mill.). III. Characterization of the regenerants.

We present data on the morphological, cytological, biochemical and genetic characteristics of tomato regenerants obtained through anther culture. As a result of induced androgenesis, more than 6,000 rooted regenerants were developed that differed both from the donor plants and among each other with respect to habitus and leaf, flower and inflorescence morphology. Cytological analysis revealed a great variability in chromosome number in the cells of the regenerated plants.

Induced androgenesis in tomato (Lycopersicon esculentum Mill). II. Factors affecting induction of androgenesis.

The influence on androgenesis of donor plant growth conditions, anther size and developmental stage of the microspore, medium composition and different anther treatments prior to culture was investigated in L. esculentum Mill. cv Roma and its hybrids.

Induced androgenesis in tomato (Lycopersicon esculentum Mill.) I. Influence of genotype on androgenetic ability : I. Influence of genotype on androgenetic ability.

The androgenetic ability of 85 Lycopersicon esculentum Mill. genotypes was tested. Callus was induced from anthers of 53 lines and hybrids.