Genetic analysis and transcriptome analysis of the mini mutant of the silkworm, Bombyx mori.
Bombyx mori
Mini mutant
differentially expressed genes
growth and development
transcriptome
Journal
Archives of insect biochemistry and physiology
ISSN: 1520-6327
Titre abrégé: Arch Insect Biochem Physiol
Pays: United States
ID NLM: 8501752
Informations de publication
Date de publication:
May 2021
May 2021
Historique:
revised:
09
12
2020
received:
18
09
2020
accepted:
05
01
2021
pubmed:
11
3
2021
medline:
15
5
2021
entrez:
10
3
2021
Statut:
ppublish
Résumé
The expression levels of some intrinsic genes, protease activity, and regulation of signaling pathways were distinct during different growth and development stages in the silkworm, Bombyx mori. The silkworm mutant mini was discovered from the normal silkworm strain S8V, and the body-size of the mini mutant was smaller than the wild-type from the second-instar and the difference became more significant in the following stages. In this study, genetic analysis of mini mutant showed that mini mutant was controlled by a single recessive gene, manifested as homozygous lethal. Then, the transcriptome analysis of the mini mutant indicated that 2944 differentially expressed genes (DEGs) were identified from the silkworm in the 48 h of the second-instar, of which 1638 genes in the mini mutants were upregulated and 1306 genes were downregulated. These DEGs were mainly distributed in the biological process, cellular component, and molecular function. The functional annotation based on the KEGG database showed that these genes were mainly clustered in metabolic pathways, fatty acid metabolism pathways, ribosome biogenesis in eukaryotes, and so on. Further analysis indicated that some genes involved in the growth and metabolism including enzyme genes, juvenile hormone, and ecdysone exhibited different transcriptional levels. These results provided new experimental evidence regarding the mechanism of the underlying formation of mini mutants.
Substances chimiques
Insect Proteins
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e21774Subventions
Organisme : National Natural Science Foundation of China
ID : 31972616
Informations de copyright
© 2021 Wiley Periodicals LLC.
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