The genome sequence of Samia ricini, a new model species of lepidopteran insect
The genome sequence of Samia ricini, a new model species of lepidopteran insect
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DOI：
10.1111/1755-0998.13259
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发表时间：
2020-10-16
影响因子：
7.7
通讯作者：
Kiuchi, Takashi
中科院分区：
文献类型：
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作者：
Lee, Jung;Nishiyama, Tomoaki;Kiuchi, Takashi
蓖麻蛾是一种巨大的饱和蛾，有可能成为新的鳞翅目模式物种。蓖麻蛾比目前的模式物种家蚕具有更强的抗病能力，因此更容易饲养。此外，还提供了可利用的遗传资源。大米可以与那些杂草相媲美。森喜朗：至少有26个生态区。据报道，这两种植物均为蓖麻属。蓖麻毒素可以与分布在亚洲各国的野生萨米亚斯物种杂交，并产生可生育的后代。食性、珠被颜色、幼虫斑纹等生理性状各不相同。蓖麻毒素和野生萨米亚种，以便这些特征可以在未来的遗传分析中成为目标。以促进基因研究。我们测定了它的全基因组序列。组装好的基因组OFS。蓖麻为458Mb，有155个支架，组装的支架N50长度类似于21Mb。总共预测了16,702个蛋白质编码基因。而这些人。蓖麻毒素基因组大部分与OFB共线。伴随着一些重排和FEWS。蓖麻毒素特异性基因被发现，绒毛膜基因和丝素基因似乎在THs中扩增。蓖麻碱。作为遗传分析的第一步，“蓝色”、“黄色”、“斑点”和“红茧”表型的致病基因被定位在染色体上。
Samia ricini, a gigantic saturniid moth, has the potential to be a novel lepidopteran model species.Samia riciniis far more resistant to diseases than the current model speciesBombyx mori, and therefore can be more easily reared. In addition, genetic resources available forS. ricinirival those forB. mori: at least 26 ecoraces ofS. riciniare reported andS. ricinican hybridize with wildSamiaspecies, which are distributed throughout Asian countries, and produce fertile progenies. Physiological traits such as food preference, integument colour and larval spot pattern differ amongS. ricinistrains and wildSamiaspecies so that those traits can be targeted in forward genetic analyses. To facilitate genetic research inS. ricini, we determined its whole genome sequence. The assembled genome ofS. riciniwas 458 Mb with 155 scaffolds, and the scaffold N50 length of the assembly was similar to 21 Mb. In total, 16,702 protein coding genes were predicted. While theS. ricinigenome was mostly collinear with that ofB. moriwith some rearrangements and fewS. ricini-specific genes were discovered, chorion genes and fibroin genes seemed to have expanded in theS. ricinilineage. As the first step of genetic analyses, causal genes for "Blue," "Yellow," "Spot," and "Red cocoon" phenotypes were mapped to chromosomes.