Origin of origami cockroach reveals long-lasting (11 Ma) phenotype instability following viviparity

Vršanský, Peter; Šmídová, Lucia; Valaška, Daniel; Barna, Peter; Vidlička, Ľubomír; Takáč, Peter; Pavlik, Lubomir; Kúdelová, Tatiana; Karim, Talia S.; Zelagin, David; Smith, Dena M.

doi:10.1007/s00114-016-1398-4

Cited by 19 publications

(3 citation statements)

References 71 publications

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“…Nearly all the characters given for its position in Ectobiidae (cubitus (CuA) reduced, plical furrow (CuP) ½ tegminal length, tegmina wide; Vršanský, 2004) are distributed polyphyletically throughout Blattodea (Appendix 1; Rehn, 1951). Vršanský et al (2016) described three species of Diploptera from the Green River, Colorado fossil deposits. However, the phylogenetic placement of these fossils in this genus is not justified.…”

Section: Calibrations For Crown Blaberoideamentioning

confidence: 99%

Fossil calibrations for the cockroach phylogeny (Insecta, Dictyoptera, Blattodea), comments on the use of wings for their identification, and a redescription of the oldest Bla

Evangelista

Djernæs

Kohli

2017

Palaeontologia Electronica

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Section: Calibrations For Crown Blaberoideamentioning

confidence: 99%

Fossil calibrations for the cockroach phylogeny (Insecta, Dictyoptera, Blattodea), comments on the use of wings for their identification, and a redescription of the oldest Bla

Evangelista

Djernæs

Kohli

2017

Palaeontologia Electronica

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“…Two basic reproductive strategies, i.e. the oviparity and viviparity can be found in various vertebrate and invertebrate lineages 1–4 . Oviparous species deposit eggs comprising spheres/platelets of proteinaceous yolk, lipid droplets and glycogen particles (i.e.…”

Section: Introductionmentioning

confidence: 99%

Evolutionary origin and functioning of pregenital abdominal outgrowths in a viviparous insect, Arixenia esau

Tworzydło

Jaglarz

Pardyak

et al. 2019

Sci Rep

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Although pregenital abdominal outgrowths occur only rarely in pterygote insects, they are interesting from the evolutionary viewpoint because of their potential homology to wings. Our previous studies of early development of an epizoic dermapteran, Arixenia esau revealed that abdominal segments of the advanced embryos and larvae, growing inside a mother’s uterus, are equipped with paired serial outgrowths. Here, we focus on the origin and functioning of these outgrowths. We demonstrate that they bud from the lateral parts of the abdominal nota, persist till the end of intrauterine development, and remain in contact with the uterus wall. We also show that the bundles of muscle fibers associated with the abdominal outgrowths may facilitate flow of the haemolymph from the outgrowths’ lumen to the larval body cavity. Following completion of the intrauterine development, abdominal outgrowths are shed together with the larval cuticle during the first molt after the larva birth. Using immunohistochemical and biochemical approaches, we demonstrate that the Arixenia abdominal outgrowths represent an evolutionary novelty, presumably related to intrauterine development, and suggest that they are not related to serial wing homologs.

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“…Two main reproductive patterns: oviparity and viviparity have been recognized among insects [ 1 – 4 ]. The most common is oviparity.…”

Section: Introductionmentioning

confidence: 99%

Unusual morphological adaptations and processes associated with viviparity in an epizoic dermapteran

et al. 2018

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Matrotrophic viviparity is a reproductive pattern in which offspring develop inside a female’s body which provides gas exchange and nutrients necessary for development. Besides placental mammals, structural and physiological aspects of matrotrophic viviparity are poorly characterized. In insects, the majority of species is oviparous, i.e. lay eggs, and viviparous reproduction has been reported only in 11 out of 44 orders, including earwigs (Dermaptera). Among dermapterans, matrotrophic viviparity has been reported in two epizoic subgroups: Arixeniidae and Hemimeridae. Here, we provide morphological evidence for distinct adaptations for this mode of viviparity in embryonic and maternal tissues in a representative of the latter subgroup, Hemimerus talpoides. Our study reveals a novel mechanism of maternal contribution to embryonic development which operates during oogenesis and involves characteristic modification of endoplasmic reticulum cisternae. Conspicuous and apparently inactive para-crystalline stacks of the endoplasmic reticulum are deposited in the oocyte cytoplasm and become activated during early embryonic development. Our analyses indicate additionally that in Hemimerus, transformed follicular/ovarian cells (on the mother’s side) and an evagination of the dorsal vessel (on the embryo’s side) converge to form a cephalic vesicle, structure analogous to a placenta. The cellular architecture of this unusual “cephalic placenta” points to its participation in an exchange of low molecular weight substances between a mother and developing embryo.

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Origin of origami cockroach reveals long-lasting (11 Ma) phenotype instability following viviparity

Cited by 19 publications

References 71 publications

Fossil calibrations for the cockroach phylogeny (Insecta, Dictyoptera, Blattodea), comments on the use of wings for their identification, and a redescription of the oldest Bla

Fossil calibrations for the cockroach phylogeny (Insecta, Dictyoptera, Blattodea), comments on the use of wings for their identification, and a redescription of the oldest Bla

Evolutionary origin and functioning of pregenital abdominal outgrowths in a viviparous insect, Arixenia esau

Unusual morphological adaptations and processes associated with viviparity in an epizoic dermapteran

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