Seth Jaya Kishor, Mohanty Swarup Ranjan, Behera Amit Kumar, Murmu Laxman Kumar, Mohapatra Anil
Post Graduate Department of Zoology, Berhampur University, Berhampur, Odisha India 760007.
Estuarine Biology Regional Centre, Zoological Survey of India, Gopalpur-on-Sea, Ganjam, Odisha India 761002.
J Parasit Dis. 2021 Dec;45(4):1077-1083. doi: 10.1007/s12639-021-01405-x. Epub 2021 Jun 1.
Two distinct morphologies of Cymothoidae isopod, were collected from the marine water of Bay of Bengal, Goapalpur-on-Sea as the first record of this parasite from coastal water of Odisha, India. All specimens were found attached to the buccal region of different individuals of the same host fish . With the aid of COI gene sequencing and morphological analysis, the individuals were found to be conspecific. The most prominent variation among the two morphologies includes the size of 5th pereonite and pleon length to total body length ratio. These variations are as a result of the biphasic moulting process. Maximum Likelihood tree analysis based on COI gene sequences concluded the monophyletic taxonomy of different buccal attaching genera under the family Cymothoidae which is in congruence with their morphological divergence.
从印度奥里萨邦海滨戈帕尔布尔的孟加拉湾海水中采集到两种不同形态的缩头水虱等足类动物,这是该寄生虫在印度奥里萨邦沿海水域的首次记录。所有标本均附着在同一种宿主鱼类不同个体的口腔区域。借助细胞色素氧化酶亚基I(COI)基因测序和形态学分析,发现这些个体为同种。两种形态之间最显著的差异包括第五腹节的大小以及尾节长度与体长的比例。这些差异是双相蜕皮过程的结果。基于COI基因序列的最大似然树分析得出缩头水虱科不同口腔附着属的单系分类,这与其形态差异一致。