Photoperiodism of Male Offspring Production in the Water Flea Daphnia pulex

2017 ◽  
Vol 34 (4) ◽  
pp. 312 ◽  
Author(s):  
Kenji Toyota ◽  
Tomomi Sato ◽  
Norihisa Tatarazako ◽  
Taisen Iguchi
Keyword(s):  
Daphnia Pulex ◽  
Male Offspring ◽  
Water Flea ◽  
Offspring Production

The water flea Daphnia pulex (Cladocera, Daphniidae), a possible model organism to evaluate aspects of freshwater ecosystems

Crustaceana ◽  
2019 ◽  
Vol 92 (11-12) ◽  
pp. 1415-1426
Author(s):  
Juan-Alejandro Norambuena ◽  
Jorge Farías ◽  
Patricio De los Ríos
Keyword(s):  
Phylogenetic Trees ◽  
Daphnia Pulex ◽  
Model Organism ◽  
Freshwater Ecosystems ◽  
Intraspecific Diversity ◽  
Molecular Tools ◽  
Water Flea ◽  
Future Studies ◽  
Molecular Studies

Abstract Daphnia pulex is a freshwater planktonic crustacean, allegedly a cosmopolitan species, which is found in lentic ecosystems. The aim of this study was to conduct a literature review of D. pulex related to its life history and genetic variability, in order to mark a route for future studies. We noted that D. pulex is a model species on which ecological studies have been carried out, as well as molecular studies, in which its molecular diversity has been characterized and such in specimens from different environments: both pristine and under human influence. In particular those studies are highlighted, in which molecular tools have been used to construct phylogenetic trees for study intraspecific differences. Also, in some of these molecular studies, analyses of genetic, inter- and intraspecific diversity have been performed. In addition, analyses of protein expression in D. pulex and related species seem promising in evaluating the detailed role of this species.

scholarly journals Development of a microinjection system for RNA interference in the water flea Daphnia pulex

2013 ◽  
Vol 13 (1) ◽  
pp. 96 ◽  
Author(s):  
Chizue Hiruta ◽  
Kenji Toyota ◽  
Hitoshi Miyakawa ◽  
Yukiko Ogino ◽  
Shinichi Miyagawa ◽  
...  
Keyword(s):  
Rna Interference ◽  
Daphnia Pulex ◽  
Water Flea

Diofenolan induces male offspring production through binding to the juvenile hormone receptor in Daphnia magna

2015 ◽  
Vol 159 ◽  
pp. 44-51 ◽  
Author(s):  
Ryoko Abe ◽  
Kenji Toyota ◽  
Hitoshi Miyakawa ◽  
Haruna Watanabe ◽  
Tomohiro Oka ◽  
...  
Keyword(s):  
Juvenile Hormone ◽  
Daphnia Magna ◽  
Hormone Receptor ◽  
Male Offspring ◽  
Offspring Production

scholarly journals Gene up-regulation in response to predator kairomones in the water flea, Daphnia pulex

2010 ◽  
Vol 10 (1) ◽  
pp. 45 ◽  
Author(s):  
Hitoshi Miyakawa ◽  
Maki Imai ◽  
Naoki Sugimoto ◽  
Yuki Ishikawa ◽  
Asano Ishikawa ◽  
...  
Keyword(s):  
Daphnia Pulex ◽  
Water Flea

scholarly journals Inverse Lansing effect: maternal age and provisioning affecting daughters' longevity and male offspring production

2021 ◽  
Author(s):  
Cora E Anderson ◽  
Camille Homa ◽  
Rachael A Jonas-Closs ◽  
Leonid M Peshkin ◽  
Marc W Kirschner ◽  
...  
Keyword(s):  
Life History ◽  
Membrane Potential ◽  
Mitochondrial Membrane Potential ◽  
Mitochondrial Membrane ◽  
Maternal Age ◽  
Life Histories ◽  
Male Offspring ◽  
Male Production ◽  
Older Mothers ◽  
Offspring Production

Maternal age effects on life history of offspring has been demonstrated in a variety of organisms, more often than not offspring of older mothers having lower life expectancy (Lansing effect). However, there is no consensus on how general this phenomenon is and what are the genetic and epigenetic mechanisms behind it. We tested the predictions of Lansing effect in several Daphnia magna clones in and observed a significant genotype-by-maternal age interaction, indicating clone-specific magnitude and direction of the effect of maternal age on daughters' longevity. We then repeated this experiment with more detailed life-history and offspring provisioning data focusing on 2 clones with contrasting life-histories. One of these clones demonstrating the inverse Lansing effect, with daughters of older mothers living longer than those of young mothers. Individuals from a single-generation maternal age reversal treatment showed intermediate lifespan. We also report genotype-specific, ambidirectional, and largely fecundity-independent effects of maternal age on daughters' propensity to produce male offspring, with daughters of older mothers showing higher male production than daughters of younger mothers in the least male-producing clone and vise versa. We tested whether both effects can be explained by either lipid provisioning of embryos by mothers of different age, or by properties of mitochondria transmitted by mothers of different age to their offspring, using rhodamine-123 assay of mitochondrial membrane potential as a measure of mitochondria quality. We show that once lipid provisioning is accounted for, the effects of maternal age on lifespan and male production disappear and that the effect of lipid provisioning itself is clone-dependent, confirming that maternal provisioning sets daughters life history parameters. In the clone showing the inverse Lansing effect we demonstrated that, contrary to the predictions, neonates produced by older mothers were characterized by higher mitochondrial membrane potential in neural tissues than their counterparts born to younger mothers. We conclude that, in at least some genotypes, a reverse Lansing effect is possible, and hypothesize that it may be a result of lower lipid provisioning creating calorically restricted environment during embryonic development.

scholarly journals Male offspring production by asexual Potamopyrgus antipodarum, a New Zealand snail

Heredity ◽  
2012 ◽  
Vol 109 (1) ◽  
pp. 57-62 ◽  
Author(s):  
M Neiman ◽  
K Larkin ◽  
A R Thompson ◽  
P Wilton
Keyword(s):  
New Zealand ◽  
Potamopyrgus Antipodarum ◽  
Male Offspring ◽  
Offspring Production

scholarly journals Metabolomics reveals an involvement of pantothenate for male production responding to the short-day stimulus in the water flea, Daphnia pulex

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Kenji Toyota ◽  
Alex Gavin ◽  
Shinichi Miyagawa ◽  
Mark R. Viant ◽  
Taisen Iguchi
Keyword(s):  
Daphnia Pulex ◽  
Male Production ◽  
Water Flea ◽  
Short Day

Effect of Juvenoids on Predator-Induced Polyphenism in the Water Flea,Daphnia pulex

2013 ◽  
Vol 319 (8) ◽  
pp. 440-450 ◽  
Author(s):  
Hitoshi Miyakawa ◽  
Hiroki Gotoh ◽  
Naoki Sugimoto ◽  
Toru Miura
Keyword(s):  
Daphnia Pulex ◽  
Water Flea
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