Comparison of telomere length among different life cycle stages of the jellyfish Cassiopea andromeda

Michiko C. Ojimi; Michio Hidaka

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Comparison of telomere length among different life cycle stages of the jellyfish Cassiopea andromeda

机译：海Cas仙后座不同生命周期阶段端粒长度的比较

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The polyp (scyphistoma) of the jellyfish Cassiopea andromeda reproduces asexually repeatedly, while the medusa, the sexually reproducing stage, exhibits a relatively shorter life span. As a first step to understand the mechanism behind the differences in the life spans of the polyp and medusa stages of the jellyfish, we compared the lengths of the telomere region of one targeted chromosome between the polyp and medusa stages using a modified single telomere length assay (STELA). The double-stranded regions of the telomeres were amplified by PCR, and the average length of the PCR products was estimated by den-sitometry analysis of the gel smear. Chromosomes within cells of the bell region of the medusa were characterized by longer telomeres than those of polyps, asexual propagules, or other regions of the medusa. This is the first study to estimate the telomere lengths of targeted chromosomes in a cnidarian and opens a way to understand the mechanism underlying different life spans of the polyp and medusa stages.

机译：水母卡西欧豌豆仙女座的息肉（阴茎肉瘤）反复无性繁殖，而水母（有性繁殖期）的寿命相对较短。作为了解水母息肉和美杜莎阶段寿命差异背后机制的第一步，我们使用改良的单端粒长度测定法比较了息肉和美杜莎阶段之间一个靶染色体端粒区域的长度。（STELA）。通过PCR扩增端粒的双链区域，并且通过凝胶涂片的密度定量分析来估计PCR产物的平均长度。水母钟形区域细胞内的染色体特征是端粒比息肉，无性繁殖体或水母其他区域的端粒更长。这是第一项估计鼻祖中目标染色体的端粒长度的研究，并为了解息肉和美杜莎阶段不同寿命的机制开辟了一条途径。

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《Marine biology》 |2010年第10期|p.2279-2287|共9页
作者
Michiko C. Ojimi; Michio Hidaka;
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Marine and Environmental Science Course,Graduate School of Engineering and Science,University of the Ryukyus,Nishihara, Okinawa 903-0213, Japan;

Department of Chemistry, Biology and Marine Science,Faculty of Science, University of the Ryukyus,Nishihara, Okinawa 903-0213, Japan;

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1. Telomerase activity is not related to life history stage in the jellyfish Cassiopea sp. [J] . Michiko C. Ojimi, Naoko Isomura, Michio Hidaka Comparative biochemistry and physiology, Part A. Molecular and integrative physiology . 2009,第2期

机译：端粒酶活性与水母Cassiopea sp。的生活史阶段无关。
2. Spatial distribution of the upside-down jellyfish Cassiopea sp. within fringing coral reef environments of the Northern Red Sea: implications for its life cycle [J] . Wolfgang Niggl, Christian Wild Helgoland marine research . 2010,第4期

机译：颠倒的水母Cassiopea sp。的空间分布。北部红海边缘的珊瑚礁环境中：对其生命周期的影响
3. Spatial distribution of the upside-down jellyfish Cassiopea sp. within fringing coral reef environments of the Northern Red Sea: implications for its life cycle [J] . Wolfgang Niggl, Christian Wild Helgoland Marine Research . 2010,第4期

机译：颠倒的水母Cassiopea sp。的空间分布。北部红海边缘的珊瑚礁环境中：对其生命周期的影响
4. The Pattern of Chromosome-Specific Variations in Telomere Length in Humans Shows Signs of Heritability and Is Maintained through Life [C] . J. GRAAKJAER, J.A. LONDONO-VALLEJO, K. CHRISTENSEN, International Association of Biomedical Gerontology International . 2006

机译：人体中端粒长度的特异性变异模式表现出遗传性的迹象，并通过寿命保持
5. An environmental lifecycle comparison of road deicers using hybrid modeling techniques to capture effects during early processing stages. [D] . Warner, Mary Elizabeth. 2016

机译：道路除冰剂的环境生命周期比较，使用混合建模技术来捕获早期处理阶段的影响。
6. Shortened telomere length in bipolar disorder: a comparison of the early and late stages of disease [O] . Florencia M. Barbé-Tuana, Mariana M. Parisi, Bruna S. Panizzutti, 2016

机译：双相情感障碍的端粒长度缩短：疾病早期和晚期的比较
7. Comparison of telomere length of Cassiopea sp. at different life cycle stages [O] . 大慈彌みち子, 日高道雄, Ojimi Michiko, 2009

机译：Cassiopea sp。端粒长度的比较。在不同的生命周期阶段

Comparison of telomere length among different life cycle stages of the jellyfish Cassiopea andromeda

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