Phylogeny and classification of the shrimp generaAcetes,Peisos, andSicyonella(Sergestidae: Crustacea: Decapoda)

Vereshchaka, Alexander L.; Lunina, Anastasia A.; Olesen, Jørgen

doi:10.1111/zoj.12371

Cited by 14 publications

(13 citation statements)

References 15 publications

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“…The use of characters of the petasma had a major impact on the result of the morphology‐based phylogenetic analysis. The same has been shown previously for other pelagic crustaceans (Vereshchaka et al., , , c, , b; Vereshchaka and Lunina, ), so the inclusion of characters of the petasma is highly recommended for phylogenetic analyses whenever possible. Indeed, the use of petasma characters in the Euphausiacea matrix doubled the number of supported clades.…”

Section: Discussionsupporting

confidence: 59%

“…In addition to standard morphological characters, we also include for the first time copulatory organ characters (e.g. of the petasma) for Euphausiacea, as such information has proven phylogenetically important for other pelagic crustaceans (Vereshchaka et al., , , c, , b; Vereshchaka and Lunina, ). We also analyse sequences of four genes and compare the resulting molecular and morphological trees.…”

Section: Introductionmentioning

confidence: 99%

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A phylogenetic study of krill (Crustacea: Euphausiacea) reveals new taxa and co‐evolution of morphological characters

2018

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The first comprehensive phylogenetic study of Euphausiacea (all 86 valid species) is presented. It is based on four molecular markers and 168 morphological characters (including 58 characters of the petasma). Phylogenetic analyses support the monophyly and robustness of the families Bentheuphausidae and Euphausiidae and reveal three major clades for which we erect three new subfamilies: Thysanopodinae, Euphausiinae and Nematoscelinae. All genus-level clades are statistically supported (except Thysanopoda in molecular analyses), deeply nested within the subfamily-level clades, and encompass 14 new species groups. Copulatory structures have a major impact on tree topology in the morphological analysis, the removal of which resulted in only half the number of supported clades and genera. We revealed three groups of morphological characters, which are probably coupled with the same biological role and thus interlinked evolutionarily: (i) antennular peduncle and petasma (copulation); (ii) eyes and anterior thoracopods (feeding); and (iii) shape of carapace and pleon (defence). We analysed the evolutionary pathways of the clades into main oceanic biotopes and compared them with morphological adaptations most likely to be coupled with this process.

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Section: Discussionsupporting

confidence: 59%

Section: Introductionmentioning

confidence: 99%

A phylogenetic study of krill (Crustacea: Euphausiacea) reveals new taxa and co‐evolution of morphological characters

2018

Self Cite

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“…The revision of the other genera of Sergestidae, i.e. Petalidium , Acetes , Peisos and Sicyonella , was made later and showed the monophyly of these genera and the synonymy of Acetes and Peisos [ 9 , 10 ]. Finally, scanning electron microscopy of the Luciferidae has allowed an estimation of homologies between copulatory structures of this family and the rest of the Sergestoidea that has, in turn, enabled a phylogenetic revision of the genus Lucifer and splitting this genus into two monophyletic genera: Lucifer and Belzebub [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies have shown that the Sergestoidea is a group exhibiting independent phylogenetic traits in three types of morphological characters [ 4 , 10 , 11 ]: (i) general external characters typical for most crustaceans, (ii) copulatory characters related to spermatophore transfer and grasping of the female (male clasping organ and petasma) and (iii) photophores. The third objective of the paper is to assess the contribution of these character types to the robustness of the clades.…”

Section: Introductionmentioning

confidence: 99%

The shrimp superfamily Sergestoidea: a global phylogeny with definition of new families and an assessment of the pathways into principal biotopes

Vereshchaka

2017

R. Soc. open sci.

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The phylogenetic analysis of Sergestoidea based on 253 morphological characters and encompassing all 99 valid species confirmed all previously recognized genus-level clades. Analysis retrieved five major robust clades that correspond to families Luciferidae, Sergestidae, Acetidae fam.n., Sicyonellidae fam.n. and Petalidiumidae fam.n. Synonymy, emended diagnoses and composition of revealed family-level clades are provided. Three types of morphological characters were important in the phylogeny of the Sergestoidea: general external characters, copulatory organs, and photophores. Novel metrics to quantify the contribution of these character types were tested. General external characters were significant in supporting the major clades (80% of the families and nearly half of the genera). Copulatory organ characters and photophores greatly supported the medium-level clades: Lucifer, Belzebub, Petalidium, Neosergestes, Challengerosergia (copulatory organ characters) and Lucensosergia, Challengerosergia, Gardinerosergia, Phorcosergia (photophores). An evolutionary model of the Sergestoidea showing their pathways into their principal biotopes is proposed: the major clades evolved in a vertical direction (from epi- to bathypelagic); further divergence at the genus level occurred within vertical zones in a horizontal direction, with the invasion of the benthopelagic and neritic (shelf and estuarine) habitats and speciation within these domains.

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“…However, Belzebub Vereshchaka, Olesen & Lunina, 2016 has been established as a new genus through morphological cladistic analysis. Therefore, Luciferidae is currently divided into two genera (Vereshchaka et al 2016). The Belzebub consists of five species, of which B. intermedius is considered a euryhaline and a subtropical pelagic species with adaption to high temperatures (Xu 2010;WoRMS 2018).…”

mentioning

confidence: 99%

The complete mitochondrial genome of Belzebub intermedius (Decapoda, Dendrobranchiata, Luciferidae)

Song

Lee

et al. 2018

Mitochondrial DNA Part B

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We determined the mitochondrial genome (mitogenome) sequence of Belzebub intermedius (Hansen, 1919). To the best of our knowledge, this is the first complete mitogenome in the family Luciferidae. The complete mitogenome of B. intermedius is 16,001 bp in length, with 13 protein-coding genes (PCGs), 22 transfer RNAs (tRNAs), two ribosomal RNAs (rRNAs), and a control region (CR). The gene arrangement of B. intermedius is almost identical to that of the same sergestoid species, Acetes chinensis Hansen, 1919, except that there is no additional trnS1. A maximum-likelihood tree, constructed using 18 decapod mitogenomes, confirmed that B. intermedius occupied the most basal position within the suborder Dendrobranchiata. ARTICLE HISTORY

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Phylogeny and classification of the shrimp generaAcetes,Peisos, andSicyonella(Sergestidae: Crustacea: Decapoda)

Cited by 14 publications

References 15 publications

A phylogenetic study of krill (Crustacea: Euphausiacea) reveals new taxa and co‐evolution of morphological characters

A phylogenetic study of krill (Crustacea: Euphausiacea) reveals new taxa and co‐evolution of morphological characters

The shrimp superfamily Sergestoidea: a global phylogeny with definition of new families and an assessment of the pathways into principal biotopes

The complete mitochondrial genome of Belzebub intermedius (Decapoda, Dendrobranchiata, Luciferidae)

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