Department of Biology, Reed College, Portland, Oregon.
Phylos Bioscience, Portland, Oregon.
Genome Biol Evol. 2019 Aug 1;11(8):2203-2207. doi: 10.1093/gbe/evz166.
The maize stalk borer, Busseola fusca, is an important Lepidopteran pest of cereal crops in Central, East, and Southern Africa. Crop losses due to B. fusca feeding activity vary by region, but can result in total crop loss in areas with high levels of infestation. Genomic resources provide critical insight into the biology of pest species and can allow for the development of effective management tools and strategies to mitigate their impact on agriculture. To this end, we sequenced, assembled, and annotated the genome of B. fusca. The total assembled genome size was 492.9 Mb with 19,417 annotated protein-coding genes. Using a comparative approach, we identified a putative expansion in the Chorion gene family, which is involved in the formation of the egg shell structure. Our analysis revealed high repeat content within the B. fusca genome, with LTR sequences comprising the majority of the repetitive sequence. We hope genomic resources will provide a foundation for future work aimed at developing an integrated pest management strategy to reduce B. fusca's impact on food security.
玉米穗螟,又名 Busseola fusca,是中、东非和南非地区谷类作物的一种重要鳞翅目害虫。由于 B. fusca 的取食活动,不同地区的作物损失情况各不相同,但在虫害水平较高的地区,可能会导致作物全部损失。基因组资源为了解害虫的生物学特性提供了关键的见解,并可以开发有效的管理工具和策略来减轻它们对农业的影响。为此,我们对 B. fusca 进行了测序、组装和注释。组装后的总基因组大小为 492.9Mb,有 19417 个注释的蛋白质编码基因。通过比较分析,我们鉴定了一个在 Chorion 基因家族中可能发生扩张的基因,该家族参与了卵壳结构的形成。我们的分析显示,B. fusca 基因组中的重复序列含量很高,LTR 序列构成了大部分重复序列。我们希望基因组资源将为未来的工作提供基础,旨在开发一种综合虫害管理策略,以降低 B. fusca 对粮食安全的影响。