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刘伟,赵金良,魏磊,钱叶周,吴超,钱德.2020.鳜皮肤图案中色素细胞的分布与排列.动物学杂志,55(3):379-386.
鳜皮肤图案中色素细胞的分布与排列
Distribution Patterning of Pigment Cells in the Skin of Mandarin Fish Siniperca chuatsi
投稿时间:2020-01-10  修订日期:2020-04-27
DOI:10.13859/j.cjz.202003012
中文关键词:    皮肤图案  色素细胞  分布  排列
英文关键词:Siniperca chuatsi  Skin pattern  Pigment cells  Distribution  Arrangement
基金项目:现代农业产业技术体系专项(No. CARS-46),安徽省重点研究和开发计划项目(No. 1804a07020137)
作者单位E-mail
刘伟 ① 农业农村部淡水水产种质资源重点实验室水产动物遗传育种中心上海市协同创新中心水产科学国家级实验教学示范中心 上海海洋大学 上海 201306 321533479@qq.com 
赵金良 ① 农业农村部淡水水产种质资源重点实验室水产动物遗传育种中心上海市协同创新中心水产科学国家级实验教学示范中心 上海海洋大学 上海 201306 jlzhao@shou.edu.cn 
魏磊 ① 农业农村部淡水水产种质资源重点实验室水产动物遗传育种中心上海市协同创新中心水产科学国家级实验教学示范中心 上海海洋大学 上海 201306 1242072007@qq.com 
钱叶周 ② 池州市秋浦特种水产开发有限公司 池州 247104 qphg2005@126.com 
吴超 ② 池州市秋浦特种水产开发有限公司 池州 247104 qphg2005@126.com 
钱德 ② 池州市秋浦特种水产开发有限公司 池州 247104 qphg2005@126.com 
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中文摘要:
      色素细胞是皮肤图案形成的基础,为了解鳜(Siniperca chuatsi)皮肤图案区域色素细胞的种类、分布及排列特征,采用光学显微镜与电子显微镜对鳜皮肤中图案区域、非图案区域及交界处皮肤的色素细胞进行显微及超显微结构观察。结果显示,鳜皮肤中含有黑色素细胞、黄色素细胞、红色素细胞及虹彩细胞,主要分布于表皮层和色素层。头部过眼条纹、躯干纵带、躯干斑块等图案区域皮肤表皮层与色素层均含有黑色素细胞,非图案区域仅表皮层含有少量黑色素细胞。躯干图案区域(纵带、斑块)皮肤色素层色素细胞分布层次明显,由外到内依次为黄色素细胞、红色素细胞、黑色素细胞和虹彩细胞,其中,虹彩细胞内反射小板较长,整齐水平排列;躯干非图案区域皮肤色素层由外到内依次为黄色素细胞、红色素细胞和虹彩细胞,其中,虹彩细胞内反射小板较短,无规则排列。头部过眼条纹色素层含有4种色素细胞,色素细胞数量较少,且无规则排列,其中,黑色素细胞内黑色素颗粒较大。交界处皮肤色素层黑色素细胞数量向非图案区域一侧逐渐减少,虹彩细胞数量逐渐增加。结果表明,鳜图案区域与非图案区域、不同图案区域的色素细胞分布与排列各不相同,本研究结果为鳜色素细胞图案化形成机制提供了基础资料。
英文摘要:
      Pigment cells are the basis of skin pattern formation. In order to understand different types and arrangement of pigment cells in different skin pattern areas of mandarin fish (Siniperca chuatsi), the skin from pattern area, non-pattern area and their junction area were observed with light and electron microscopes. The results showed that the skin contained melanophores, xanthophores, erythrophores and iridophores, which were mainly distributed in the epidermis and pigment layer. The pattern areas include eye stripe, trunk band and trunk spots that contained melanophores in both the epidermis and pigment layer. The skin non-pattern area only contained a small amount of melanophores in the dermis (Fig. 2). In the skin trunk pattern area (band, strips), different pigment cells were obviously distributed in order in pigment layer: from the outside to the inside, xanthophores, erythrophores, melanophores and iridophores were distributed (Fig. 5b), and the reflective platelets in iridophores were long and neatly arranged horizontally (Fig. 5e). In the non-patterned areas of the trunk xanthophores, erythrophores and iridophores were observed from the outside to the inside (Fig. 5c), and the reflective small plates in iridophores were short and irregularly arranged (Fig. 5f). Pigment layer of the eye stripe contained these four kinds of pigment cells, and the number of pigment cells which were irregularly arranged in this region was small, and melanin granules were large in size (Fig. 5a). At the skin junction area, the number of melanophores in the pigment layer gradually decreased toward the non-patterned area, while the number of iridophores gradually increased (Fig. 5d). The result showed that the types, distributions and arrangements of pigment cells were distinctly different among pattern areas, non-pattern area and junction area. Results of this study provide some basic information for understanding pigmentation patterning mechanism in mandarin fish.
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