Brassica napus plants comprising an improved fertility restorer
A short Ogura restorer fragment on chromosome N10 in Brassica napus plants addresses high glucosinolate levels and pod shatter tolerance loss, enabling efficient fertility restoration and hybrid seed production with improved characteristics.
Patent Information
- Authority / Receiving Office
- AU · AU
- Patent Type
- Applications
- Current Assignee / Owner
- BASF AGRICULTURAL SOLUTIONS SEED US LLC
- Filing Date
- 2021-12-20
- Publication Date
- 2026-07-23
AI Technical Summary
Existing Brassica napus plants with Ogura cytoplasmic male sterility restorers have high glucosinolate levels and reduced seed set due to large Raphanus chromosome fragments, leading to issues like pod shatter tolerance loss and low recombination rates, hindering the development of improved hybrid breeding systems.
Identification and utilization of a short Ogura restorer fragment on chromosome N10, characterized by specific markers (M2, M3, M5) and absence of markers M1 and M4, which is present downstream of nucleotide 19,218,577, and includes a Raphanus chromosome fragment between positions 8,330,119 and 10,655,049, enabling efficient fertility restoration with improved pod shatter tolerance.
The solution provides Brassica napus plants with effective fertility restoration and maintained pod shatter tolerance, facilitating hybrid seed production and hybrid breeding while reducing glucosinolate levels.
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