Evaluating antibiosis resistance to cabbage aphid (Brevicoryne brassicae L., 1758) in vegetable brassicas (Brassica oleracea L.) and related C-genome brassica species.

ABSTRACT:

Background

Nineteen Brassica accessions from four C-genome species were screened under controlled environment conditions for their effects on the development of the cabbage aphid, Brevicoryne brassicae. The aim was to identify accessions with antibiosis host plant resistance (HPR) to B. brassicae. Candidate Brassica accessions were selected because of (i) upregulation of transcription factors gene orthologues acting within the jasmonic acid signalling pathway, or (ii) having been reported in the 1990s as partially resistant to cabbage aphid. Accessions were evaluated by placing three 1-day-old aphid nymphs on six true leaf stage plants and recording the aphid population size 14 days later.

Results

There was significant (GLM, P < 0.05) variation in aphid population size betwe

SUBMITTER: Gladman AK 

PROVIDER: S-EPMC12618919 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature