2018
DOI: 10.1186/s12898-018-0169-9
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The ctenophore Mnemiopsis leidyi regulates egg production via conspecific communication

Abstract: BackgroundCommunication between individuals of the same species is an important aspect of mating and reproduction in most animals. In simultaneously hermaphroditic species with the ability to self-fertilize, communication with conspecifics can be essential to avoid inbreeding depression. One such behavioral adaptation observed in some simultaneous hermaphrodites is gamete trading. This behavior involves individual hermaphrodites in pairs alternating between reproducing as the male and female, and, as such, nec… Show more

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Cited by 10 publications
(5 citation statements)
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“…Alternatively, the use of agar-coated petri dish has been described as an effective measure [23,43]. Note 21: Some studies have pointed out that egg viability is more reduced when a single individual self-fertilized the eggs [44,46]. Our results do not concur in this regard, showing high viability also when spawned individually (Fig.…”
Section: Discussionmentioning
confidence: 54%
“…Alternatively, the use of agar-coated petri dish has been described as an effective measure [23,43]. Note 21: Some studies have pointed out that egg viability is more reduced when a single individual self-fertilized the eggs [44,46]. Our results do not concur in this regard, showing high viability also when spawned individually (Fig.…”
Section: Discussionmentioning
confidence: 54%
“…The phylogenetic divergence between Parasitodiplogaster , Ficophagus , and Mermithid nematodes suggest that some form of conspecific-influenced ESD mechanism evolved independently and with unique genetic/molecular pathways. Analogous density-dependent ESD scenarios to produce adaptive sex ratios have been described for other nematodes (46, 4849), malarial Plasmodium (50), Ctenophores (51), and in Daphnia (52), but are typically associated with life histories characterized by self-fertility. We suggest that this or similar ESD mechanisms allow for precise sex ratio allocation exist in numerous organisms sharing similar life histories, but this prediction awaits future testing.…”
Section: Discussionmentioning
confidence: 77%
“…Here, we will stick to the tradition and will refer to the early cydippid life stage as larva. Nearly, all the studied ctenophore species are hermaphrodites, and while self‐fertilization is possible (Ford et al, 2020), ctenophores have strategies to increase chances of cross‐fertilization through communication by chemical factors released in water (Sasson et al, 2018) that they probably detect with multiple sensory cells on their body surface (see below). Interestingly, some benthic ctenophores brood their larvae and are able to reproduce asexually by fragmentation (Glynn et al, 2019).…”
Section: Introductionmentioning
confidence: 99%