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Is Sex Reversal Common Phenomenon in Horseshoe Crabs Too?
Sanatan Tudu 1  
,   Tanmay Sarkar 2, 3  
,   Behara Satyanarayana 4,   Bisnu Prasad Dash 5, 6  
,   Siddhartha Pati 7, 6  
,   Anil Chatterji 8, 6  
 
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1
Department of Biosciences and Biotechnology, Fakir Mohan University, Balasore, Odisha-756089, India
2
Malda Polyechnic, West Bengal State Council of Technical Education, Government of West Bengal, Malda, 732102, India
3
Department of Food Technology and Bio-Chemical Engineering, Jadavpur University, Jadavpur, Kolkata, 700032, India
4
Institute of Oceanography and Environment, Universiti Malaysia Terengganu , Kuala Nerus 21030, Terengganu, Malaysia
5
Department of Biosciences and Biotechnology, Fakir Mohan University, Balasore, Odisha, 756089, India
6
Research Division, Association for Biodiversity Conservation and Research, Odisha, 756001, India
7
Centre of Excellence, Khallikote University, Berhampur, Odisha, 761008, India
8
Aquamarina Research Foundation, Dona Paula, Goa, 403004, India
CORRESPONDING AUTHOR
Siddhartha Pati   

Association of Biodiversity Conservation and Research, Devine Colony, 756001 Balasore, Odisha, India
Publication date: 2021-07-01
 
Ecol. Eng. Environ. Technol. 2021; 4:45–52
 
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ABSTRACT
The capacity of organisms to change their sex has evolved independently in several species. Sex change has been widely studied, but research approaches have differed and conclusions have often been specific. Although sex allocation theory provides a unifying framework for the study of sex change, this unity has not always been appreciated, Environmental sex reversal (ESR), which results in a mismatch between genotypic and phenotypic sex, is well documented in numerous species and may be induced by chemical exposure. In the present study, an attempt was made to hypothesize the phenomenon of sex reversal in both Asian species (Tachypleus gigas and Carcinoscorpius rotundicauda) of the horseshoe crab in accordance with the size of the animals. Our findings suggest that both Asian species of horseshoe crabs ultimately show a positive sign of sex reversal phenomenon, however, this hypothesis needs further confirmation by studying the hormonal changes at all moulting stages of the horseshoe crab