Double-copulated introduction of ejaculate with dominant larval phenotype to maintain <i>Bombyx mori</i> mutant with dysfunctional apyrene sperm

Double-copulated introduction of ejaculate with dominant larval phenotype to maintain <i>Bombyx mori</i> mutant with dysfunctional apyrene sperm
复制标题

双交引入具有显性幼虫表型的精液以维持具有功能障碍的阿芘精子的<i>Bombyx mori</i>突变体

DOI:
10.11416/jibs.89.2_039
复制
发表时间:
2020
影响因子:
--
通讯作者:
Teruyuki Niimi
Teruyuki Niimi
中科院分区:
--
文献类型:
--
作者:
Hiroki Sakai;Tatsuro Konagaya;Yoko Takemura;Ken Sahara;Teruyuki Niimi

文献摘要

参考文献

相似文献

高级鳞翅目雄性产生两种类型的精子;有核的真精子称为真核精子,无核的准精子称为无核精子。无核精子是真核精子成功受精所必需的,无核功能障碍导致不育。在以前的研究中,我们产生了家蚕性致死(Bm-Sxl)突变体,转录激活因子样效应核酸酶(TALEN)介导的表型,并发现Bm-Sxl基因是必不可少的无核精子发生。Bm-Sxl突变株之一SxlIn 3-homo(SxlIn 3/SxlIn 3)在高度保守的RNA结合结构域中具有3bp插入。SxlIn 3-homo的不育性可以通过给予来自具有缺陷的真核精子的三倍体雄性的无核精子来挽救。Bm-Sxl突变体可以使用三倍体来维持。然而,三倍体雄性的生产是劳动密集型的。考虑到该方法的后勤挑战,我们开发了一种替代的双交配方法,使用携带显性幼虫表型的二倍体品系来保持突变体,以抢占具有挑战性和劳动密集型的三倍体蚕生产。在这项研究中,我们成功地保持了我们的SxlIn 3-homo株的双重交配的女性与条纹(pS/pS)和SxlIn 3-homo男性。
Advanced lepidopteran males produce two types of sperm; nucleated eusperm called eupyrene sperm, and anucleated parasperm called apyrene sperm. Apyrene sperm is necessary for successful eupyrene sperm fertilization, and apyrene dysfunction results in sterility. In a previous study, we generated Bombyx mori Sex-lethal (Bm-Sxl) mutants, a phenotype mediated by transcription activator-like effector nuclease (TALEN), and found that the Bm-Sxl gene is essential for apyrene spermatogenesis. One of the Bm-Sxl mutant strains, SxlIn3-homo (SxlIn3/SxlIn3), possessed a 3-bp insertion in the highly conserved RNA binding domain. The sterility of SxlIn3-homo can be rescued by administration of apyrene sperm from triploid males with defective eupyrene sperm. The Bm-Sxl mutants can be maintained using the triploid. However, the production of triploid males is labor-intensive. Considering the logistical challenges of that method, we developed an alternative double copulation method to maintain the mutant using a diploid strain carrying a dominant larval phenotype to preempt the challenging and labor-intensive production of triploid silkworms. In this study, we successfully maintained our SxlIn3-homo strain by double copulation of the female with a striped (pS/pS) and a SxlIn3-homo male.
DOI: --
发表时间: 1938
期刊:
影响因子: --
作者:
S. Ômura
通讯作者: S. Ômura
DOI: 10.1266/jjg.15.29
发表时间: 1939
期刊: The Japanese Journal of Genetics
影响因子: --
作者:
S. Omura
通讯作者: S. Omura
DOI: --
发表时间: 2003
期刊: J. Exp. Zool. 297A(2)
影响因子: --
作者:
Sahara K;Takemura Y
通讯作者: Takemura Y
DOI: 10.11416/kontyushigen1930.48.77
发表时间: 1979
期刊: The journal of sericultural science of Japan
影响因子: --
作者:
N. Kawamura
通讯作者: N. Kawamura
DOI: 10.1017/s0967199402002046
发表时间: 2002-02-01
期刊: ZYGOTE
影响因子: 1.7
作者:
Sahara, K;Kawamura, N
通讯作者: Kawamura, N