Nucleolus organizers in the wild silkworm Bombyx mandarina and the domesticated silkworm B. mori

Chromosoma ◽  
1988 ◽  
Vol 96 (4) ◽  
pp. 263-269 ◽  
Author(s):  
Hideaki Maekawa ◽  
Naoko Takada ◽  
Kenichi Mikitani ◽  
Teru Ogura ◽  
Naoko Miyajima ◽  
...  
Keyword(s):  
Bombyx Mandarina ◽  
In The Wild ◽  
Wild Silkworm ◽  
Nucleolus Organizers

A novel splice variant of the decapentaplegic (dpp) gene in the wild silkworm, Bombyx mandarina

2015 ◽  
Vol 466 (3) ◽  
pp. 295-299 ◽  
Author(s):  
Woori Kwak ◽  
Jung-Won Choi ◽  
Seong Ryul Kim ◽  
Kwang-Ho Choi ◽  
Kee-Young Kim ◽  
...  
Keyword(s):  
Splice Variant ◽  
Bombyx Mandarina ◽  
In The Wild ◽  
Wild Silkworm

scholarly journals Cytochrome P450 monooxygenase genes in the wild silkworm, Bombyx mandarina

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10818
Author(s):  
Linrong Wan ◽  
Anlian Zhou ◽  
Wenfu Xiao ◽  
Bangxing Zou ◽  
Yaming Jiang ◽  
...  
Keyword(s):  
Cytochrome P450 ◽  
Enrichment Analysis ◽  
Silk Gland ◽  
P450 Monooxygenase ◽  
Protein Coding ◽  
Bombyx Mandarina ◽  
Physical Maps ◽  
Cytochrome P450 Genes ◽  
In The Wild ◽  
Genome Assemblies

Wild (Bombyx mandarina) and domestic silkworms (B. mori) are good models for investigating insect domestication, as 5000 years of artificial breeding and selection have resulted in significant differences between B. mandarina and B. mori. In this study, we improved the genome assemblies to the chromosome level and updated the protein-coding gene annotations for B. mandarina. Based on this updated genome, we identified 68 cytochrome P450 genes in B. mandarina. The cytochrome P450 repository in B. mandarina is smaller than in B. mori. Certain currently unknown key genes, rather than gene number, are critical for insecticide resistance in B. mandarina, which shows greater resistance to insecticides than B. mori. Based on the physical maps of B. mandarina, we located 66 cytochrome P450s on 18 different chromosomes, and 27 of the cytochrome P450 genes were concentrated into seven clusters. KEGG enrichment analysis of the P450 genes revealed the involvement of cytochrome P450 genes in hormone biosynthesis. Analyses of the silk gland transcriptome identified candidate cytochrome P450 genes (CYP306A) involved in ecdysteroidogenesis and insecticide metabolism in B. mandarina.

scholarly journals The complete mitochondrial genome of the wild silkworm Bombyx mandarina strain Shenyang

2019 ◽  
Vol 4 (1) ◽  
pp. 991-992
Author(s):  
Lin Zhao ◽  
Ru-Song Zhang ◽  
Dong-Bin Chen ◽  
Hai-Xu Bian ◽  
Xian Liu ◽  
...  
Keyword(s):  
Mitochondrial Genome ◽  
Complete Mitochondrial Genome ◽  
Bombyx Mandarina ◽  
Wild Silkworm

Full Length cDNA Cloning and Expression Characteristics of Ace Gene from Wild Silkworm, Bombyx mandarina

2011 ◽  
Vol 175-176 ◽  
pp. 51-55
Author(s):  
Bing Li ◽  
Yan Hong Wang ◽  
Ju Mei Wang ◽  
Wei De Shen
Keyword(s):  
Amino Acid ◽  
Amino Acid Sequence ◽  
Tissue Expression ◽  
Full Length ◽  
Cloning And Expression ◽  
Bombyx Mandarina ◽  
Resistance Evolution ◽  
Tissue Expression Analysis ◽  
Wild Silkworm ◽  
Fat Bodies

Acetylcholinesterase (AChE), which contains two subfamilies, ace1 and ace2 in insects, was identified to be the target of organophosphorous and carbamate insecticides. To research the sequences and tissues expressions of two aces, full length cDNAs encoding two ace genes were cloned, designated as Bmm-ace1 and Bmm-ace2 from larvae of the Bombyx mandarina. The amino acid sequence of Bmm-ace1 shared 99.71 % homology with its homolog, Bm-ace1, in silkworm, Bombyx mori, with two mutations (G664S and S307P), and the amino acid sequence of Bmm-ace2 shared 99.37 % homology with Bm-ace2, in B. mori , with four mutations (M18I, N233S, I310V and G621S). Tissue expression analysis showed that ace1 gene expressed only in the brains and fat bodies of B. mandarina, while ace2 genes expressed in all the tissues tested. ace1 and ace2 expressed highly in brains and fat bodies. The present results are significant to the study of resistance evolution of Lepidorptera as well as the understanding of the mechanism of pesticide resistance of insects.

IDENTIFICATION AND EXPRESSION ANALYSIS OF VITELLOGENIN RECEPTOR FROM THE WILD SILKWORM,Bombyx mandarina

2015 ◽  
Vol 89 (4) ◽  
pp. 181-192 ◽  
Author(s):  
Cen Qian ◽  
Wei-Wei Fu ◽  
Guo-Qing Wei ◽  
Lei Wang ◽  
Qiu-Ning Liu ◽  
...  
Keyword(s):  
Expression Analysis ◽  
Bombyx Mandarina ◽  
Vitellogenin Receptor ◽  
Wild Silkworm

scholarly journals Bioactive Secondary Metabolites of Wild Antheraea mylitta Silkworm Cocoons

2021 ◽  
Author(s):  
Sayed Iqbal Ahamad ◽  
Kari Neetha ◽  
Shyam Kumar Vootla
Keyword(s):  
Secondary Metabolites ◽  
Key Factors ◽  
Antheraea Mylitta ◽  
Income Source ◽  
Biophysical Analysis ◽  
Pupal Diapause ◽  
In The Wild ◽  
Tribal Populations ◽  
Wild Silkworm

The wild silkworm Antheraea mylitta is grown and cultivated in several parts of India ranging from Bihar to West Bengal and several parts of Telangana. The wild silkworm rearing has been a source of income for the tribal populations who rely on it as income source; the intervention of government agencies has increased the cultivation. Our research involves understanding the secondary metabolites in the silkworm Cocoons and elucidating how the pupa survives the harsh environment during pupal diapause of the insect. We have realized the role of insect repellent compounds and other metabolites and their interaction with the insect. Wild silkworm Cocoons are the specialized natural structures constructed by Antheraea mylitta silkworms. They are the protein composites of sericin and fibroin as a structural material. The silkworm cocoons are presumed to be evolved structures through the course of evolution over millions of years. This chapter focuses on Biophysical analysis of chemical compounds, proteins and other secondary metabolites traced in the Wild Antheraea mylitta Tasar cocoons which are predicted to be the key factors to achieve the unique structural and chemical barriers to protect the pupa within the cocoons.

scholarly journals Resistance comparison of domesticated silkworm (Bombyx mori L.) and wild silkworm (Bombyx mandarina M.) to phoxim insecticide

2010 ◽  
Vol 9 (12) ◽  
pp. 1771-1775 ◽  
Author(s):  
Li Bing ◽  
Wang Yanhong ◽  
Liu Haitao ◽  
Xu YaXiang ◽  
Wei Zhengguo ◽  
...  
Keyword(s):  
Bombyx Mori ◽  
Bombyx Mandarina ◽  
Wild Silkworm ◽  
Bombyx Mori L ◽  
Silkworm Bombyx Mori

Gene analysis of an antiviral protein SP-2 from Chinese wild silkworm, Bombyx mandarina Moore and its bioactivity assay

2008 ◽  
Vol 51 (10) ◽  
pp. 879-884 ◽  
Author(s):  
HuiPeng Yao ◽  
FangQing He ◽  
AiQin Guo ◽  
CuiPing Cao ◽  
XingMeng Lu ◽  
...  
Keyword(s):  
Gene Analysis ◽  
Antiviral Protein ◽  
Bombyx Mandarina ◽  
Bioactivity Assay ◽  
Wild Silkworm

Nested retrotransposons on the W chromosome of the wild silkworm Bombyx mandarina

2002 ◽  
Vol 11 (4) ◽  
pp. 307-314 ◽  
Author(s):  
H. Abe ◽  
T. Sugasaki ◽  
T. Terada ◽  
M. Kanehara ◽  
F. Ohbayashi ◽  
...  
Keyword(s):  
W Chromosome ◽  
Bombyx Mandarina ◽  
Wild Silkworm
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