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Maternal Effects on the Expression of Individual Aliphatic Glucosinolates in Seeds and Seedlings of Brassica napus
Author(s) -
Magrath Ruth,
Mithen R.
Publication year - 1993
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.1993.tb00637.x
Subject(s) - brassica , biology , glucosinolate , botany , brassicaceae
An investigation into the glucosinolate profile of seed and leaf tissue of F 1 hybrids from reciprocal crosses between B. napus ‘Cobra’ and a synthetic B. napus line was undertaken to test hypotheses concerning the site of biosynthesis of seed glucosilates. The profile of the seed aliphatic glucosinolates was dentical to the maternal parent suggesting the absence of glucosinolate biosynthesis and glucosinolate interconversion within the embryo and the transfer of fully formed glucosinolates from maternal tissue into the developing seed. In cotyledons, while there was no evidence for de novo glucosinolate biosynthesis, there was evidence for side chain modication and the interconversion of existing glucosinolates. in true leaves, the glucosinolate profile of the reciprocal F 1 hybrids were identical, and in accordance with that expected from the F 1 genotype.