对比转录学揭示了线性偏光对Oratosquilla oratoria的生态陷效应
Xiuyu Qu1, Qi Huang2, Huanjun Li3
1School of Ocean, Yantai University, Yantai 264003, Shandong, China.
概括
人工线性偏光 (LPL) 破坏了神灵Oratosquilla oratoria的视力,生殖和免疫力. 这项研究揭示了极化光污染对海洋生态系统的遗传影响.
科学领域:
- 海洋生物学 海洋生物学
- 生态毒理学 生态毒理学
- 基因组学就是基因组学.
背景情况:
- 城市发展造成的极化光污染 (PLP) 对光敏感动物产生负面影响.
- 人工线性偏光 (LPL) 可能成为海洋物种的生态陷.
- 对LPL对海洋无脊椎动物的不良影响的遗传机制尚不清楚.
研究的目的:
- 在基因层面研究人工LPL对神灵Oratosquilla oratoria的负面影响.
- 在应对LPL暴露时识别差异表达基因 (DEGs).
- 了解LPL对O. oratoria生理和行为的功能影响.
主要方法:
- 在暴露于自然光 (NL) 的O. oratoria复合眼睛与LPL.的比较转录学.
- 差异表达基因 (DEGs) 的识别和量化.
- DEGs的功能注释,以确定受影响的生物途径.
主要成果:
- 在NL和LPL暴露组之间确定了3616个DEG.
- 1972年的基因被上调和1644个基因被下调在LPL.
- 65个DEG与光传导,生殖,免疫和突触功能有关.
结论:
- 持续暴露于LPL可能会损害光传输,破坏生殖过程,并损害O. oratoria. 的免疫反应.
- 这项研究提供了对人工LPL对O. oratoria的有害影响的第一个遗传见解.
- 这些发现有助于生物保护理论关于PLP对海洋生态系统的影响.
相关概念视频
Position-effect Variegation
In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
Transcription Attenuation in Prokaryotes
Transcriptional attenuation occurs when RNA transcription is prematurely terminated due to the formation of a terminator mRNA hairpin structure. Bacteria use these hairpins to regulate the transcription process and control the synthesis of several amino acids including histidine, lysine, threonine, and phenylalanine. Transcription attenuation takes place in the non-coding regions of mRNA.
There are several different mechanisms used to attenuate transcription. In ribosome mediated...
There are several different mechanisms used to attenuate transcription. In ribosome mediated...


