Abstract:
:Due to the incongruence of morphology-based hypotheses and scarcity of molecular data, validity of the order Tetraonchidea remains contentious. The only complete mitogenome currently available for the entire order is that of Paratetraonchoides inermis (Tetraonchoididae). To study the phylogeny of Tetraonchidea from mitogenomic perspective, we sequenced the first mitogenome for the family Tetraonchidae: Tetraonchus monenteron (Tetraonchidea). To get a nuclear-data perspective, we also sequenced nuclear 28S rDNA gene of both species. The mitogenome of T. monenteron does not have high A + T content, nor tRNA pseudo-genes, both of which were unique features reported in P. inermis. However, T. monenteron exhibits a unique gene order, with a large number of tRNA rearrangements in comparison to P. inermis and other monogeneans. Phylogenetic analyses conducted using Bayesian inference and maximum likelihood methods, complemented with partitioning, consistently support the sister-group relationship of T. monenteron (Tetraonchidae) and P. inermis (Tetraonchoididae). This is also partially supported by the 28S rDNA data and two morphologic apomorphies. This close relationship of Tetraonchidae and Tetraonchoididae challenges the latest major morphology-based classification, which proposed obsoletion of the Tetraonchidea order, and grouped Tetraonchoididae into the Gyrodactylidea clade. The validity of this order shall have to be further confirmed with more data.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Zhang D,Li WX,Zou H,Wu SG,Li M,Jakovlić I,Zhang J,Chen R,Wang GTdoi
10.1016/j.ijbiomac.2019.09.150subject
Has Abstractpub_date
2020-01-15 00:00:00pages
891-901eissn
0141-8130issn
1879-0003pii
S0141-8130(19)33630-Xjournal_volume
143pub_type
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