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首页> 外文期刊>Canadian Journal of Plant Science >Cabbage seedpod weevil resistance in canola (Brassica napus L.), yellow mustard (Sinapis alba L.) and canola x yellow mustard hybrids
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Cabbage seedpod weevil resistance in canola (Brassica napus L.), yellow mustard (Sinapis alba L.) and canola x yellow mustard hybrids

机译：双低油菜籽（甘蓝型油菜），黄芥末（Sinapis alba L.）和油菜x黄芥末杂种的白菜种子象鼻抗性

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Canola, yellow mustard and yellow mustard x canola hybrids were screened for resistance to Ceutorhynchus obstrictus (Marsham) in a series of greenhouse and laboratory choice tests. Tests were conducted using small and large cages designed to hold Brassica pods or whole plants, respectively, with ovipositing female C. obstrictus. Pods were examined for feeding punctures, eggs laid and exit holes that resulted from emerging larvae. All yellow mustard cultivars examined were highly resistant to C. obstrictus feeding and egg laying. In addition, hybrid lines were found with significantly reduced feeding punctures, oviposition, and exit holes compared with canola. A negative relationship was observed between total glucosinolate content of seed and C. obstrictus resistance; however, in both detached pod and whole plant choice tests, hybrids were identified with high seed glucosinolate content that were more susceptible than the most susceptible canola. The relatively poor association between total seed meal glucosinolate content and C. obstrictus resistance is highly important and plant breeders should be able to develop canola-quality oil and seed meal characteristics with improved C. obstrictus resistance using yellow mustard x canola hybrids. The effect of specific glucosinolate types on C. obstrictus resistance may be more complex than previously thought, and further research will be needed to better understand the relationship between specific glucosinolate types and resistance to C. obstrictus.
机译：在一系列温室和实验室选择试验中，对低芥酸菜子，黄芥末和黄芥末x低芥酸菜子杂种的抗性进行了筛选。测试使用的是小型和大型笼子，这些笼子分别设计成可容纳芸苔荚果或整株植物，而雌性C. obstrictus则在排卵。检查豆荚的进食刺孔，产卵的卵和幼虫出现的出孔。所有检查过的黄芥菜品种均对圆角梭菌的摄食和产卵具有高度抗性。另外，与低芥酸菜子相比，发现杂种系的进食刺穿，产卵和出孔明显减少。种子中总芥子油苷含量与C. obstrictus耐药性之间存在负相关关系。但是，在分离荚果和全株选择试验中，均鉴定出具有较高芥子油苷含量的杂种，其比最易感的双低油菜籽更易感。总籽粕中芥子油苷的含量与抵抗角衣梭菌之间的相对较弱的关联非常重要，并且植物育种者应该能够使用黄芥末x双低油菜籽杂种开发出芥菜油品质的油和种子粕特性，并提高抵抗链球菌的抗性。特定的芥子油苷类型对棉铃虫抗药性的影响可能比以前认为的更为复杂，需要进一步研究以更好地理解特定的芥子油苷类型与抗棉铃虫的抗药性之间的关系。

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