Arthropod phylogeny revisited, with a focus on crustacean relationships

Koenemann, Stefan; Jenner, Ronald A.; Hoenemann, Mario; Stemme, Torben; Reumont, Björn M. von

doi:10.1016/j.asd.2009.10.003

Cited by 75 publications

(63 citation statements)

References 76 publications

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“…Shared molecular and neuronal elements can be expected because of the close phylogenetic relationships between insects and crustaceans, which was recently revealed by several phylogenetic studies by use of numerous clearly detectable homologies in neuronal structures and development (reviews: 93, 310). Analyses of morphological, molecular, and neuronal characters supported a novel taxon including insects and crustaceans, the Pancrustacea or Tetraconata (91,(311)(312)(313)(314)(315).…”

Section: Evolution Of Circadian Pacemakers In Arthropodsmentioning

confidence: 99%

Circadian clocks in crustaceans: identified neuronal and cellular systems

Strauß

Dircksen²

2010

Front Biosci

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Circadian rhythms are known for locomotory and reproductive behaviours, and the functioning of sensory organs, nervous structures, metabolism and developmental processes. The mechanisms and cellular bases of control are mainly inferred from circadian phenomenologies, ablation experiments and pharmacological approaches. Cellular systems for regulation summarised here comprise the retina, the eyestalk neuroendocrine X-organ-sinus gland system, several neuropeptides such as red pigment concentrating, hyperglycaemic and pigment-dispersing hormones, and factors such as serotonin and melatonin. No master clock has been identified, but a model of distributed clockwork involves oscillators such as the retinular cells, neurosecretory systems in the optic lobes, putative brain pacemakers, and the caudal photoreceptor. Extraretinal brain photoreceptors mediate entrainment. Comparative analyses of clock neurons and proteins known from insects may allow the identification of candidate clock neurons in crustaceans as putative homologues in the two taxa. Evidence for the existence of "insect-like" intracellular clock proteins and (light sensitive) transcription factors is scarce, but clock-, period-, and cryptochrome-gene products have been localised in the CNS and other organs rendering further investigations into crustacean clockwork very promising.

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Section: Evolution Of Circadian Pacemakers In Arthropodsmentioning

confidence: 99%

Circadian clocks in crustaceans: identified neuronal and cellular systems

Strauß

Dircksen²

2010

Front Biosci

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“…Primary sequence and secondary structure have been worked out for several crustaceans including the isopod Armadillidium vulgare (Choe et al 1999), the mysid Boremysis megalops (Meland 2007), and used in higher-level arthropod phylogeny by Koenemann et al (2009). In addition to consideration of secondary structure further sampling is required to address the composition of Sphaeromatidea as proposed by Brandt & Poore (2003).…”

Section: Phylogenetic Analysesmentioning

confidence: 99%

Phylogenetic relationships of the family Sphaeromatidae Latreille, 1825 (Crustacea: Peracarida: Isopoda) within Sphaeromatidea based on 18S-rDNA molecular data

Wetzer¹,

Pérez‐Losada²,

Bruce³

2013

Zootaxa

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Based on 18S-rDNA sequences of 97 isopods including 18 Sphaeromatidea, we show Sphaeromatidae, Valvifera, Serolidae, and Ancinidae is a well supported clade. The within clade relationships of these taxa are not as definitively demonstrated because taxon sampling for some groups is still limited. In our analyses the Sphaeromatidae are shown to be unequivocally monophyletic. This is contrary to the morphology-based analysis by A. Brandt and G. Poore in 2003, which included only five Sphaeromatidae and found the family to be paraphyletic. The Ancinidae are also upheld, and the Valvifera is the sister taxon to Serolidae. Surprisingly Plakarthrium (Plakarthiidae) is nested within the Sphaeromatidae in most analyses. We point out short-comings in our sampling and suggest areas which would benefit from better sampling. We also review the long and convoluted nomenclatural history of the Sphaeromatidea, Sphaeromatoidea, and Sphaeromatidae.

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“…More molecular sequence data probably will not resolve the incongruity of sequence versus morphology and development. A better understanding of sequence evolution and secondary molecular structure might help solve problems of alignment resulting in noisy data or signals that track phylogeny poorly (Koenemann et al, 2010). However, a methodological problem also may affect the conclusions of Regier et al (2010).…”

Section: Discussionmentioning

confidence: 99%

Morphology, Development, and Sequence

Ferrari

2010

Journal of Crustacean Biology

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An arthropod phylogeny derived from nucleotide sequences (Regier et al., 2010) did not consider either the morphology or the development of crustaceans. Examples of a morphological transformation and developmental data appear to provide only limited support for the cladogram because similar morphology and development are found among distantly related crustaceans, while differing morphology and development are found among closely related crustaceans. One reason for the incongruity may be a method of sequence analysis that results in statistical support values. This method samples a population of purposefully-generated cladograms, although there has been only one history of life on earth; in effect the purposefully-generated cladograms are instrumental artifacts.

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Arthropod phylogeny revisited, with a focus on crustacean relationships

Cited by 75 publications

References 76 publications

Circadian clocks in crustaceans: identified neuronal and cellular systems

Circadian clocks in crustaceans: identified neuronal and cellular systems

Phylogenetic relationships of the family Sphaeromatidae Latreille, 1825 (Crustacea: Peracarida: Isopoda) within Sphaeromatidea based on 18S-rDNA molecular data

Morphology, Development, and Sequence

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