|
Vol. 62, 2023
(update: 2023.12.13)
Coevolutionary Implications of
Obligate Commensalism in Sea Turtles: the Case of the Genus Hyachelia Barnard, 1967 (Crustacea,
Amphipoda)
Tammy
Iwasa-Arai1,2,3,* , Sónia C.S. Andrade3,
Camila
Miguel4, Silvana G.L. Siqueira2, Max Rondon
Werneck5, Fosca P.P. Leite2, Lara Moraes3,
Marcelo Renan D. Santos4, Luciana S. Medeiros6,7, Uylia H. Lopes7, and Cristiana Serejo8
doi:10.6620/ZS.2023.62-54
1Programa
de Pós-Graduação em Biologia Animal, Universidade Estadual de Campinas
(UNICAMP). Campinas, São Paulo, Brazil. *Correspondence: E-mail:
araitammy@gmail.com (Iwasa-Arai)
2Departamento de Biologia Animal, Instituto de
Biologia, Universidade Estadual de Campinas, Campinas 13083-970, SP,
Brazil. E-mail: soniacsandrade@ib.usp.br (Andrade); silvsbio@gmail.com
(Siqueira); fosca@unicamp.br (Leite)
3Departamento de Genética e Biologia Evolutiva,
Instituto de Biociências, Universidade de São Paulo, São Paulo
05508-090, SP, Brazil. E-mail: soniacsandrade@ib.usp.br (Andrade);
larademoraess@gmail.com (Moraes)
4Projeto Chelonia mydas - Instituto Marcos Daniel, R.
José Alexandre Buaiz, 190 - Sala 1713 - Enseada do Suá, Vitória,
29050-545, ES, Brazil. E-mail: camila.miguel@acad.pucrs.br (Miguel);
mrenansantos@gmail.com (Santos)
5Instituto BW para Conservação e Medicina da Fauna
Marinha. Araruama, Rio de Janeiro, Brazil. E-mail:
maxrwerneck@gmail.com (Werneck)
6Programa de Pós-Graduação em Ciência Animal,
Universidade Federal de Alagoas (UFAL). Viçosa, 57700-970, AL, Brazil.
E-mail: luasmvet@hotmail.com (Medeiros)
7Instituto Biota de Conservação, Maceió, 57038-770,
AL, Brazil. E-mail: uyllallopes@gmail.com (Lopes)
8Laboratório de Carcinologia, Departamento de
Invertebrados, Museu Nacional/UFRJ, Rio de Janeiro, 20940-040, RJ,
Brazil. E-mail: csserejo@acd.ufrj.br (Serejo)
(Received 1 March 2023 / Accepted 23
October 2023 / Published 13 December 2023)
Communicated by Ryuji Machida
Obligate commensalism in the marine
environment and its evolutionary role are still poorly understood.
Although sea turtles may serve as ideal substrates for epibionts,
within amphipods, only the genus Hyachelia
evolved in obligate
commensalism with turtles. Here, we report a new host record for
Hyachelia lowryi on the
hawksbill turtle and describe a larger
distribution of the genus in the Atlantic Ocean on green and loggerhead
turtles. Hyachelia spp. were
sampled from nesting sites of Caretta
caretta and feeding grounds of Eretmochelys
imbricata and Chelonia
mydas along the Brazilian coast. Insights regarding the
coevolution of
this remarkable genus with its hosts based on molecular analyses are
inferred based on mitochondrial (COI)
and nuclear (18SrRNA) genes using
new and previously available sequences from the infraorder Talitrida.
Divergence times for Hyachelia
are around the Cretaceous (~127.66 Mya),
corresponding to an ancient origin and in agreement with modern green
turtle (Chelonioidea) radiation. Later, diversification of Hyachelia
species is dated at about 26 Mya, suggesting a coevolutionary
association between amphipods and Carettini/Chelonini sea turtles.
Key words: Distribution, Epibiosis,
Invertebrate, Marine, Molecular evolution, New record, Talitrida,
Taxonomy
Citation:
Iwasa-Arai T, Andrade SCS, Miguel C, Siqueira SGL, Werneck MR, Leite
FPP, Moraes L, Santos MRD, Medeiros LS, Lopes UH, Serejo C. 2023.
Coevolutionary implications of obligate commensalism in sea turtles:
the case of the genus Hyachelia
Barnard, 1967 (Crustacea, Amphipoda). Zool Stud 62:54. doi:10.6620/ZS.2023.62-54.
Supplementary
materials: Table S 1丨
Fig. S1
|
