Reproductive biology of the viviparous scorpion,<i>Liocheles australasiae</i>(Fabricius) (Arachnida, Scorpiones, Ischnuridae) IV. Pregnancy in females isolated from infancy, with notes on juvenile stage duration

Makioka, Toshiki

doi:10.1080/07924259.1993.9672353

Cited by 14 publications

(16 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the final stage of egg maturation and the processes of recovery of diploidy and early cleavages, which progress from the 17th to the 20th day after the last parturition, are sometimes observed in the same ovary. In the present study, neither spermatozoa nor any stages of male germ cells were observed in tissues and spaces of young and adult ovaries, as in the previous studies Koike, 1984, 1985;Makioka, 1992aMakioka, , 1993.…”

Section: Resultssupporting

confidence: 67%

“…In scorpions, thelytokous parthenogenesis was reported in two buthid species (Matthiesen, 1962;San Martin and De Gambardella, 1966;Zolessi, 1985) and an ischnurid species (Makioka, 1993), but the processes and mechanisms of egg maturation and parthenogenetic recovery of diploidy have not been studied. In the present study, three different methods were used to solve the problem in the ischnurid scorpion Liocheles australasiae.…”

Section: Discussionmentioning

confidence: 99%

“…Thelytokous parthenogenesis has also been reported in scorpions. It was confirmed by the separate rearing through successive generations in two scorpion families, in the Buthidae Tityus serrulatus (Matthiesen, 1962;San Martín and De Gambardella, 1966) and T. bolivianus uruguayensis (Zolessi, 1985) and, in the Ischnuridae, Liocheles australasiae (Makioka, 1993). In some other Tityus species, also, it was presumed on the basis of the absence of males in the populations (Zolessi, 1985;Lourenço, 1991;Lourenço and Cuellar, 1994) and pregnancies in isolated females (Lourenço and Cuellar, 1994); in another buthid, Ananteris coineaui, it was also presumed on the basis of the all-female neonates (Lourenço and Cuellar, 1999).…”

mentioning

confidence: 84%

See 2 more Smart Citations

Egg maturation and parthenogenetic recovery of diploidy in the scorpionLiocheles australasiae (Fabricius) (Scorpions, Ischnuridae)

et al. 2000

Self Cite

View full text Add to dashboard Cite

Section: Resultssupporting

confidence: 67%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 84%

See 1 more Smart Citation

Egg maturation and parthenogenetic recovery of diploidy in the scorpionLiocheles australasiae (Fabricius) (Scorpions, Ischnuridae)

et al. 2000

Self Cite

View full text Add to dashboard Cite

“…This has not yet been explored. Makioka & Koike (1984) and Makioka (1992Makioka ( , 1993) demonstrated that female Liocheles australasiae (Fabricius, 1775) reared in isolation in the laboratory, produced five successive generations in seven years. No spermatozoa were found in any region of the female reproductive system, males do not occur in these populations, and populations reproduce by thelytokous parthenogenesis (Makioka & Koike, 1985;Yamazaki & Makioka, 2005).…”

Section: Parthenogenesismentioning

confidence: 99%

“…Only when females are raised in captivity as in Liocheles (Makioka, 1992(Makioka, , 1993 is it possible to obtain this information In addition, in order to calculate RP an estimate of longevity is needed. However, longevity can only be estimated (in prep.…”

Section: Reproductive Potential (Rp)mentioning

confidence: 99%

Scorpion reproductive strategies, allocation and potential; a partial review

Warburg¹

2011

Eur. J. Entomol.

View full text Add to dashboard Cite

Abstract. Most scorpion species are iteroparous, breeding more than once during their life. Some of these species are parthenogenetic. The other reproductive strategy (RS) semelparity, when scorpions breed only a single time during their life, is rare and has been documented only once. The mass allocated by the female to produce either a litter or a single offspring is the reproductive allocation (RA). It is difficult to calculate RA since the difference in female mass before and after parturition is difficult to obtain. In addition, the litter size is hardly ever accurate because of maternal cannibalism. An attempt was made to calculate RA in Nebo hierichonticus (E. Simon, 1872). Based on litter size, on breeding frequency and on longevity of the female, it is possible to estimate the reproductive potential (RP). These aspects of scorpion reproduction are reviewed and the difficulties involved in this study are discussed.

show abstract

LC/MS/MS identification of 20-hydroxyecdysone in a scorpion (Liocheles australasiae) and its binding affinity to in vitro-translated molting hormone receptors

Miyashita

Matsushita

Nakamura

et al. 2011

Insect Biochemistry and Molecular Biology

View full text Add to dashboard Cite

Recent advances in mass spectrometry (MS) technology have facilitated the detection and quantification of minor components in organisms and the environment. In this study, we successfully identified 20-hydroxyecdysone (20E) in first instar nymphs (7 days after hatching) of the scorpion Liocheles australasiae, using tandem mass spectrometry combined with high-performance liquid chromatography (LC/MS/MS). This substance was not found in adults after the fifth stage. Other possible molting hormone candidates such as makisterone A (MaA) and ponasterone A (PoA), both of which are reported to be the molting hormones of a few arthropod species, were not detected in this scorpion. The ligand-receptor binding of 20E and its analogs was quantitatively evaluated against the in vitro-translated molting hormone receptor, the heterodimer of ecdysone receptor (EcR) and the retinoid X receptor (RXR) of L. australasiae (LaEcR/LaRXR). The concentrations of ecdysone (E), MaA, 20E, and PoA that are required to inhibit 50% of [(3)H]PoA binding to the LaEcR/LaRXR complex were determined to be 1.9, 0.69, 0.05, and 0.017 μM, respectively. The activity profiles of these 4 ecdysteroids are consistent with those obtained for the molting hormone receptors of several insects. The binding of a non-steroidal E agonist, tebufenozide, to EcR was not observed even at high concentrations, indicating that the structure of the ligand-binding pocket of LaEcR is not favorable for interaction with tebufenozide.

show abstract

Reproductive biology of the viviparous scorpion,Liocheles australasiae(Fabricius) (Arachnida, Scorpiones, Ischnuridae) IV. Pregnancy in females isolated from infancy, with notes on juvenile stage duration

Cited by 14 publications

References 4 publications

Egg maturation and parthenogenetic recovery of diploidy in the scorpionLiocheles australasiae (Fabricius) (Scorpions, Ischnuridae)

Egg maturation and parthenogenetic recovery of diploidy in the scorpionLiocheles australasiae (Fabricius) (Scorpions, Ischnuridae)

Scorpion reproductive strategies, allocation and potential; a partial review

LC/MS/MS identification of 20-hydroxyecdysone in a scorpion (Liocheles australasiae) and its binding affinity to in vitro-translated molting hormone receptors

Contact Info

Product

Resources

About