New insights into the genomic organization and splicing of the doublesex gene, a terminal regulator of sexual differentiation in the silkworm Bombyx mori.

Sex-determination mechanisms differ among organisms. The primary mechanism is diverse, whereas the terminal regulator is relatively-conserved. We analyzed the transcripts of the Bombyx mori doublesex gene (Bmdsx), and reported novel results concerning the genomic organization and expression of Bmdsx...

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Autores principales: Jianping Duan, Hanfu Xu, Huizhen Guo, David A O'Brochta, Feng Wang, Sanyuan Ma, Liying Zhang, Xingfu Zha, Ping Zhao, Qingyou Xia
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Publicado: Public Library of Science (PLoS) 2013
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spelling oai:doaj.org-article:792a5c99cac6456888ffc05bec4156ab2021-11-18T08:47:53ZNew insights into the genomic organization and splicing of the doublesex gene, a terminal regulator of sexual differentiation in the silkworm Bombyx mori.1932-620310.1371/journal.pone.0079703https://doaj.org/article/792a5c99cac6456888ffc05bec4156ab2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24244545/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Sex-determination mechanisms differ among organisms. The primary mechanism is diverse, whereas the terminal regulator is relatively-conserved. We analyzed the transcripts of the Bombyx mori doublesex gene (Bmdsx), and reported novel results concerning the genomic organization and expression of Bmdsx. Bmdsx consists of nine exons and eight introns, of which two exons are novel and have not been reported previously. Bmdsx transcripts are spliced to generate seventeen alternatively-spliced forms and eleven putative trans-spliced variants. Thirteen of the alternatively-spliced forms and five of the putative trans-spliced forms are reported here for the first time. Sequence analysis predicts that ten female-specific, six male-specific splice forms and one splice form found in males and females will result in four female-specific, two male-specific Dsx proteins and one Dsx protein common to males and females. The Dsx proteins are expected to be functional and regulate downstream target genes. Some of the predicted Dsx proteins are described here for the first time. Therefore the expression of the dsx gene in B. mori results in a variety of cis- and trans-spliced transcripts and multiple Dsx proteins. These findings show that in B. mori there is a complicated pattern of dsx splicing, and that the regulation of splicing and sex-specific functions of lepidopteran dsx have evolved complexity.Jianping DuanHanfu XuHuizhen GuoDavid A O'BrochtaFeng WangSanyuan MaLiying ZhangXingfu ZhaPing ZhaoQingyou XiaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 11, p e79703 (2013)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Jianping Duan
Hanfu Xu
Huizhen Guo
David A O'Brochta
Feng Wang
Sanyuan Ma
Liying Zhang
Xingfu Zha
Ping Zhao
Qingyou Xia
New insights into the genomic organization and splicing of the doublesex gene, a terminal regulator of sexual differentiation in the silkworm Bombyx mori.
description Sex-determination mechanisms differ among organisms. The primary mechanism is diverse, whereas the terminal regulator is relatively-conserved. We analyzed the transcripts of the Bombyx mori doublesex gene (Bmdsx), and reported novel results concerning the genomic organization and expression of Bmdsx. Bmdsx consists of nine exons and eight introns, of which two exons are novel and have not been reported previously. Bmdsx transcripts are spliced to generate seventeen alternatively-spliced forms and eleven putative trans-spliced variants. Thirteen of the alternatively-spliced forms and five of the putative trans-spliced forms are reported here for the first time. Sequence analysis predicts that ten female-specific, six male-specific splice forms and one splice form found in males and females will result in four female-specific, two male-specific Dsx proteins and one Dsx protein common to males and females. The Dsx proteins are expected to be functional and regulate downstream target genes. Some of the predicted Dsx proteins are described here for the first time. Therefore the expression of the dsx gene in B. mori results in a variety of cis- and trans-spliced transcripts and multiple Dsx proteins. These findings show that in B. mori there is a complicated pattern of dsx splicing, and that the regulation of splicing and sex-specific functions of lepidopteran dsx have evolved complexity.
format article
author Jianping Duan
Hanfu Xu
Huizhen Guo
David A O'Brochta
Feng Wang
Sanyuan Ma
Liying Zhang
Xingfu Zha
Ping Zhao
Qingyou Xia
author_facet Jianping Duan
Hanfu Xu
Huizhen Guo
David A O'Brochta
Feng Wang
Sanyuan Ma
Liying Zhang
Xingfu Zha
Ping Zhao
Qingyou Xia
author_sort Jianping Duan
title New insights into the genomic organization and splicing of the doublesex gene, a terminal regulator of sexual differentiation in the silkworm Bombyx mori.
title_short New insights into the genomic organization and splicing of the doublesex gene, a terminal regulator of sexual differentiation in the silkworm Bombyx mori.
title_full New insights into the genomic organization and splicing of the doublesex gene, a terminal regulator of sexual differentiation in the silkworm Bombyx mori.
title_fullStr New insights into the genomic organization and splicing of the doublesex gene, a terminal regulator of sexual differentiation in the silkworm Bombyx mori.
title_full_unstemmed New insights into the genomic organization and splicing of the doublesex gene, a terminal regulator of sexual differentiation in the silkworm Bombyx mori.
title_sort new insights into the genomic organization and splicing of the doublesex gene, a terminal regulator of sexual differentiation in the silkworm bombyx mori.
publisher Public Library of Science (PLoS)
publishDate 2013
url https://doaj.org/article/792a5c99cac6456888ffc05bec4156ab
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