Diapause termination, post-diapause development and reproduction in the beet webworm, Loxostege sticticalis (Lepidoptera: Pyralidae)

Jiang, Xingfu; Huang, Shao Hong; Luo, Li; Liu, Yueqiu; Zhang, Lei

doi:10.1016/j.jinsphys.2010.04.016

Cited by 51 publications

(24 citation statements)

References 36 publications

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“…In contrast to our results, Jiang et al (2010b) found that diapause did incur a cost in this species, in the form of prolonged preoviposition and oviposition periods, and reduced fecundity. Postdiapause conditions in their study were not different than ours, except that adults were provided with a 5% glucose solution, whereas adults in the current study were provided with a 10% glucose solution.…”

Section: Discussioncontrasting

confidence: 99%

“…In spring, the beet webworm migrates long distances from overwintering areas on the wind. The increased longevity of female adults originating from a diapause population (Jiang et al 2010b, Fig. 1E this study) helps ensure that they have enough time for both migration and reproduction.…”

Section: Discussionmentioning

confidence: 93%

“…The reason for enhanced migratory capacity in postdiapause adults is unclear, although it may reßect a predictable lack of suitable habitat in overwintering areas in the early spring. Although factors controlling diapause have been explored for this species (Jiang et al 2010b), further research is needed to elucidate the factors inßuencing the decision to migrate, as well as the expression of migratory behavior in individuals. Finally, to close the circle and obtain a more complete picture, it will be important to determine the effects of migratory ßight on fecundity and longevity.…”

Section: Discussionmentioning

confidence: 99%

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Comparison of Reproductive and Flight Capacity ofLoxostege sticticalis(Lepidoptera: Pyralidae), Developing From Diapause and Non-Diapause Larvae

et al. 2012

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The beet webworm, Loxostege sticticalis (L.) (Lepidoptera: Pyralidae), uses both diapause and migration as life history strategies. To determine the role of diapause plays in the population dynamics of L. sticticalis, the reproductive and flight potentials of adults originating from diapause and nondiapause larvae were investigated under controlled laboratory conditions. Preoviposition period, lifetime fecundity, and daily egg production of females originating from diapause larvae were not significantly different from those originating from nondiapause larvae, showing that diapause has no significant effect on reproductive capacity when adults are provided with an adequate carbohydrate source. However, females that developed from diapause larvae lived significantly longer than those from nondiapause larvae. Flight capacity, including flight duration, distance and velocity of 3-d-old adults were all significantly greater in adults originating from diapause larvae than those from nondiapause larvae. L. sticticalis adults developing from diapause larvae tended to have more extreme values of longest flight duration and furthest flight distance than those from nondiapause larvae. Together, these results suggest that long-distance flight potential of L. sticticalis is greater after larval diapause than after direct development to adulthood. However, there were no significant differences between sexes within the two categories of moths in terms of total flight duration, total flight distance, flight velocity, and longest flight duration.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

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Comparison of Reproductive and Flight Capacity ofLoxostege sticticalis(Lepidoptera: Pyralidae), Developing From Diapause and Non-Diapause Larvae

et al. 2012

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“…Chilling is often effective in the termination of diapause under laboratory conditions [17, 18, 26, 27, 28] and this was demonstrated again in the present study for diapause termination of A . lucorum (Fig 3, Fig 6).…”

Section: Discussionsupporting

confidence: 81%

Effect of Water on Survival and Development of Diapausing Eggs of Apolygus lucorum (Hemiptera: Miridae)

Jin

Chen²,

Zhang³

et al. 2016

PLoS ONE

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The green mirid bug Apolygus lucorum is a regional pest of multiple crops in northern China, and the survival and development of diapausing eggs during winter plays an important role in the population dynamics of this species. The effect of water on the survival and development of A. lucorum eggs was investigated using laboratory-induced diapause. Diapausing eggs were exposed to various humidity regimes under three conditions: (1) termination of diapause with exposure to warm long-day (WLD) conditions (i.e., 26 ± 1°C and 75 ± 5% relative humidity (RH) under a photoperiod of 16 hours light and 8 hours dark), (2) termination of diapause by chilling at 4°C, or (3) during the post-diapause stage, i.e., from transfer to WLD conditions after chilling, until the hatching of nymphs. The results indicate that water availability is crucial for the post-diapause resumption of development of A. lucorum. However, exposure to excessive moisture was detrimental, as indicated by a decrease in diapause termination rate and a prolonged pre-hatching period of diapausing eggs, compared to limited moisture conditions. This implies that both too dry and too humid environmental conditions would suppress survival and postpone hatching of overwintered A. lucorum eggs, and might explain why this pest has not caused severe damage in either southern or western China where the respective climates are very humid or dry.

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“…The larvae of L. sticticalis were maintained at 22±1 °C, 70-80% RH and L:D 16:8 photoperiod on LB Agar 21. Tissues for analysis were isolated from fifth instar larval and were stored at -70°C until use.…”

Section: Methodsmentioning

confidence: 99%

Identification and Molecular Characterization of a New Member of the Peritrophic Membrane Proteins from the Meadow Moth, Loxostege Sticticalis

Yin¹,

Wei²,

Li³

et al. 2010

Int. J. Biol. Sci.

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The peritrophic membrane (PM) plays an important role in protecting insects. The PM proteins are important to determinate the formation and function of the PM. A new PM protein, named Lsti99, was identified from the PM of Loxostege sticticalis larvae by cDNA library screening. The full cDNA of Lsti99 is 1392 bp in length, contains an open reading frame (ORF) of 1245 bp that encodes a preprotein of 415 amino acid residues with a 17-amino acid signal peptide. The sequence of Lsti99 showed no homology to other known PM proteins. The recombinant Lsti99 was successfully expressed in insect cells (Sf9) using recombinant baculoviruses and was used to isolate the antibodies to Lsti99 from the polyclonal antiserum. Lsti99 was expressed mainly in the PM, but weaker bands could be detected in the head and integument as well. The Lsti99 protein could be separated from the PM complex by chitinase in vitro, but M2R did not show effect in vitro confirming the chitin-binding activity of Lsti99. The biochemical and physiological functions of Lsti99 in L. sticticalis require further investigation.

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Diapause termination, post-diapause development and reproduction in the beet webworm, Loxostege sticticalis (Lepidoptera: Pyralidae)

Cited by 51 publications

References 36 publications

Comparison of Reproductive and Flight Capacity ofLoxostege sticticalis(Lepidoptera: Pyralidae), Developing From Diapause and Non-Diapause Larvae

Comparison of Reproductive and Flight Capacity ofLoxostege sticticalis(Lepidoptera: Pyralidae), Developing From Diapause and Non-Diapause Larvae

Effect of Water on Survival and Development of Diapausing Eggs of Apolygus lucorum (Hemiptera: Miridae)

Identification and Molecular Characterization of a New Member of the Peritrophic Membrane Proteins from the Meadow Moth, Loxostege Sticticalis

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