Deciphering the heterogeneous glucosinolates composition in leaves and seeds: strategies for developing Brassica napus genotypes with low seed glucosinolates content but high leaf glucosinolates content.

ABSTRACT: Rapeseed cakes with low glucosinolates content (GC) possess high feeding value. However, the pursuit of low-GC seeds has inadvertently resulted in a reduction of GC in leaves, making plants more susceptible to stress and lowering their nutritional quality. Therefore, it is imperative to disrupt the tight association between GC in these two tissues and ultimately develop genotypes with low-GC seeds but high-GC leaves. The distinct mechanisms underlying glucosinolate (GSL) synthesis in these two tissues remain unclear. Here, we discovered that aliphatic and aromatic GSLs, rather than indole GSLs, contribute to the positive correlation between GC in seeds and leaves. We performed selective-sweep analyses and identified the genomic footprints left after decades of intense selection for low-GC

SUBMITTER: Tu M 

PROVIDER: S-EPMC12044725 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature