Molecular genetics and breeding of vegetable brassicas

Abstract

These Brassicas are the most baffling plants' (Bailey, 1922) Summary Genetic traits relevant to breeding vegetable brassicas are surveyed to determine the effects that recent advances in molecular genetics and molecular marker technology might have on breeding priorities and practices. The problems peculiar to breeding horticultural crops are addressed . The application of DNA restriction fragment length polymorphisms (RFLPs) as an aid to breeding brassicas is discussed and genes amenable to molecular analysis are considered in the light of both experimental and economic factors .

Cruciferous Vegetables, Isothiocyanates, and Bladder Cancer Prevention

“…In studies looking at animal feed rich in cruciferous vegetables, a reduction in fertility of male and female animals, as well as growth reduction, and reduction in milk and egg production have been observed . Furthermore, glucosinolate hydrolysis may cause irritation of gastro‐intestinal mucosa, which may lead to local necrosis and hepatotoxicity …”

“…[120] Furthermore, glucosinolate hydrolysis may cause irritation of gastro-intestinal mucosa, which may lead to local necrosis and hepatotoxicity. [121] There have even been studies that have linked isothiocyanates, in low concentrations, with compromising the function of immune cells and impairing genome stability. [122] Isothiocyanates are extremely electrophilic and have the ability to bind sulphydryl groups of biologically important molecules, contributing to their potential toxicity.…”

Leaf glucosinolate profiles and their relationship to pest and disease resistance in oilseed rape

“…The efficiency of these backcrossing programmes can be expected to increase significantly with the development of molecular markers within Brassica (King, 1990) . The efficiency of these backcrossing programmes can be expected to increase significantly with the development of molecular markers within Brassica (King, 1990) .…”

Glucosinolates and Resistance to Leptosphaeria maculans in Wild and Cultivated Brassica Species

“…The diploid species are morphologically more diverse than B. napus and it is likely that they contain agronomically useful genes which do not occur within the existing B. napus primary genepool. The rate of introgression of genes from the diploid Brassica species into B. napus cultivars is likely to increase considerably with the development of molecular markers for agronomic traits (KING 1990).…”