Molecular phylogeny of <i>Thoe</i> Bell, 1836 (Crustacea, Brachyura, Majoidea)

Authors contribution

Conceptualization and Design: JC, WS. Performed research: JC, AMW, WS. Acquisition of data: IRRM, ALC. Analysis and interpretation of data: JC, AMW, WS. Preparation of figures/tables/maps: JC, MM, LL. Writing - original draft: JC, MM, LL, IRRM. Writing - critical review & editing: AMW, WS.

Conflicts of Interest

The authors declare no conflicts of interest.

Figures (3)
Tables (2)

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Figure 1.
Molecular phylogenetic tree represented as maximum likelihood and Bayesian topology of two partial mitochondrial (COI and 16S) sequences showing Thoe inter- and intra-generic relationship, based on 5 close genera and 17 sequences including Maja squinado as outgroup with maximum likelihood bootstrap values and Bayesian posterior probabilities (* different topology). Note: ULLZ 9227 of Windsor and Felder (2014Windsor AM and Felder DL 2014. Molecular phylogenetics and taxonomic reanalysis of the family Mithracidae MacLeay (Decapoda: Brachyura: Majoidea). Invertebrate Systematics, 28(2): 145-173. DOI: 10.1071/IS13011
https://doi.org/10.1071/IS13011... ) reidentified as Thoe puellaStimpson, 1860Stimpson W 1860. Notes on North American Crustacea, in the museum of the Smithsonian Institution, No. II. Annals of the Lyceum of Natural History of New York, 7: 177-246, pls. II, V. DOI: 10.1111/j.1749-6632.1862.tb00153.x
https://doi.org/10.1111/j.1749-6632.1862... .

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Figure 2.
A-D Thoe asperaRathbun, 1901Rathbun MJ 1901. The Brachyura and Macrura of Porto Rico. Bulletin of the United States Fish Commission, 20(2) (for 1900): 1-127. pls. 1, 2. https://decapoda.nhm.org/pdfs/26422/26422.pdf
https://decapoda.nhm.org/pdfs/26422/2642... . A, B, Female, CL 7.5 mm, CW 6.78 mm, Brazil (LSZ 185). C, D, Male lectotype, CL 9.9 mm, CW 7.84 mm, Puerto Rico (USNM 23773). A, C, Habitus. B, D, Ventral view. E, Thoe erosaBell, 1836Bell T 1836b. Some account of the Crustacea of the coasts of South America, with descriptions of new genera and species: founded principally on the collections obtained by Mr. Cuming and Mr. Miller. Transactions of the Zoological Society of London (Zoology), 2: 39-66. DOI: 10.1111/j.1469-7998.1839.tb00007.x
https://doi.org/10.1111/j.1469-7998.1839... , habitus, male, CL 8.6 mm, Panama (eastern Pacific) (ULLZ 9738). F, Thoe puellaStimpson, 1860Stimpson W 1860. Notes on North American Crustacea, in the museum of the Smithsonian Institution, No. II. Annals of the Lyceum of Natural History of New York, 7: 177-246, pls. II, V. DOI: 10.1111/j.1749-6632.1862.tb00153.x
https://doi.org/10.1111/j.1749-6632.1862... , habitus, male, CL 10 mm, CW 11 mm, Guadeloupe (MNHN IU 2013 4256). Credit of photos: E, D. Felder; F, J. Poupin. Scale bars: 0.5mm.

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Figure 3.
A-D, Thoe erosaBell, 1836Bell T 1836b. Some account of the Crustacea of the coasts of South America, with descriptions of new genera and species: founded principally on the collections obtained by Mr. Cuming and Mr. Miller. Transactions of the Zoological Society of London (Zoology), 2: 39-66. DOI: 10.1111/j.1469-7998.1839.tb00007.x
https://doi.org/10.1111/j.1469-7998.1839... . A, B, Female syntype, CL 9.9 mm, CW 9.5 mm (OUMNH.ZC.13734). C, D, Female syntype, CL 11.6 mm, CW 10.5 mm (OUMNH.ZC.13735). Credit of photos: K. Child. Scale bars: 0.5mm.

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Table 1.
Taxa included in the molecular phylogenetic and genetic distance analyses. Newly sequenced specimens are in bold. Abbreviation of institutional collections: CCDB, Coleção de Crustáceos do Departamento de Biologia - FFCLRP, Universidade de São Paulo; KAC, Keith A. Crandall lab collection; LSZ, Coleção do Laboratório de Sistemática Zoológica, Universidade Estadual Paulista; MZUSP, Museu de Zoologia, Universidade de São Paulo; ULLZ, University of Louisiana at Lafayette Zoological Collection; USNM, United States National Museum, Smithsonian Institution. GMx = Gulf of Mexico, water body names preceded by E, or W to indicate eastern or western, respectively, -, no sequence.

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Table 2.
Pairwise evolutionary divergence of partial 16 S rDNA sequences using Tamura-Nei model among Thoe and other Mithracidae species using Maja squinado as outgroup.

Taxon Name	Locality	Catalog No.	GenBank Accession Nos.
			16S	COI
Mithracidae
*Thoe aspera*	W Atlantic Brazil	LSZ 185	MZ322947	MZ323413
*Thoe aspera*	W Atlantic Brazil	MZUSP 41773	MZ322965	-
Thoe erosa	E Pacific Panamá	ULLZ 9073	KF453020	KF452939
Thoe puella	W Atlantic, Florida Keys	ULLZ 4533	KF452992	KF45290
Thoe puella	Caribbean, Colombia	ULLZ 9227	KF453027	KF45947
Thoe puella	Caribbean, Panama	ULLZ 13582	MK971356	MN183924
Thoe puella	Caribbean, Panama	ULLZ 13583	MK971561	MN183923
Petramithrax pygmaeus	E Pacific, Panama	ULLZ 10063	KF452972	KF452895
Hemus cristulipes	E GMx, Florida Keys	ULLZ 5783	KF452995	KF452915
Hemus magalae	Caribbean, Panama	USNM 1149374	KF453034	KF452958
Mithraculus forceps	Caribbean, Panama	ULLZ 13675	MK971651	MN184210
Mithraculus cinctimanus	Caribbean, Panama%	ULLZ 13467	MK971628	MN184186
Mithraculus cinctimanus	Caribbean, Belize	ULLZ 12012	KF452986	KF452905
Omalacantha bicornuta	W Atlantic, Brazil	CCDB 5740	KX398194	KX398201
Omalacantha bicornuta	Caribbean, Panama	ULLZ 13563	MK971650	MN184209
Omalacantha bicornuta	Caribbean, Panama	ULLZ 13567	MK971631	MN184189
Outgroup
Maja squinado	unknown	KAC 2168	DQ079723	-

	T. aspera	T. erosa	T. puella	M. cinctimanus	P. pygmaeus	O. bicornuta	H. cristulipes	M. forceps	H. magalae
*Thoe aspera*
*Thoe erosa*	0.13
*Thoe puella*	0.15	0.09
*Mithraculus cinctimanus*	0.21	0.17	0.18
*Petramithrax pygmaeus*	0.22	0.17	0.17	0.25
*Omalacantha bicornuta*	0.22	0.20	0.19	0.22	0.23
*Hemus cristulipes*	0.22	0.15	0.16	0.22	0.21	0.22
*Mithraculus forceps*	0.22	0.16	0.18	0.08	0.25	0.24	0.24
*Hemus magalae*	0.25	0.21	0.24	0.22	0.26	0.25	0.14	0.26
*Maja squinado*	0.35	0.32	0.31	0.34	0.38	0.30	0.37	0.36	0.35

[1] JC E-mail: jessica.colavite@gmail.com

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Molecular phylogeny of Thoe Bell, 1836 (Crustacea, Brachyura, Majoidea)

Abstract