Population dependent effects of photoperiod on diapause related physiological traits in an invasive beetle (Leptinotarsa decemlineata)
36
TL;DR: The invasive beetle Leptinotarsa decemlineata does not increase diapause related cold tolerance via homeoviscous adaptation, and might have developed other means to cope with suboptimal temperatures, such as behavioral adaptations.
read more
About: This article is published in Journal of Insect Physiology. The article was published on 01 Aug 2012. and is currently open access. The article focuses on the topics: Diapause & Leptinotarsa.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Figures
FIGURE 1 A model of the main endocrinological drivers of pre-diapause development in adult female L. decemlineata reared under diapause inducing conditions. Pre-diapause development is fairly similar in most insects overwintering as adults studied so far. Boxes surrounded by broken lines contain functions which were investigated in this thesis. Days are approximations based on averages reported in several studies. JH titer variation is large, and only the general direction reported. It should be stressed that many parts of the regulatory machinery are still very vaguely known, and inter-species variation is large. For instance, the cellular JH receptor still remains unknown and the link between JH titer and Insulin signaling has only been investigated in a handful of studies (Tatar et al. 2001, Williams et al. 2006, Sim and Denlinger 2008). Therefore many steps are to be taken as hypothetical. JH: Juvenile Hormone III, JHE: Juvenile Hormone Esterase, JHEH: Juvenile Hormone Epoxide Hydrolase, CA: Corpora Allata. The figure is based on references: Tauber et al. 1986, Khan et al. 1988, de Kort 1990, Nijhout 1994, Vermunt et al. 1999, Gilbert et al. 2012 and work cited therein. 
FIGURE 2 Summary of temperature and photoperiodic differences between the environments of the most northern and southern population studied in this thesis. Figure (a) and (b) show monthly mean temperatures and average minimum and maximum temperatures (over a 50 year period) of the northern (Petroskoi) and southern (Padua) locations (www.weatherbase.com, accessed 29.5.2013). Note that y-axis scales are the same. Figure (c) shows annual photoperiodic fluctuations at the two locations. Figure (d) shows natural photoperiods in Petroskoi and Padua. The critical photoperiod (CPP) for Colorado potato beetles from central Europe (the Netherlands) is shown as the lower dotted line (based on de Wilde 1959). The rectangle shows the approximate emergence time for the first new generation of beetles at both locations. In Padua this means that adults emerging from midsummer to the end of July face long days (solid part) after which new adults face a short photoperiod and should prepare for overwintering (open part). For beetles in Petroskoi, the critical photoperiod of 15 h is reached very late. The upper dashed line shows the long day photoperiod used in the experiment and the solid arrow the seasonal shift in Petroskoi which would result of photoperiodic synchronization. Figure (d) is reprinted from Lehmann et al. 2012 (study II), with permission from Elsevier. 
TABLE 1 Coordinates and average growing conditions at the locations where beetles were collected for this study. 
TABLE 2 Wilxocon rank sum test of lipid content difference (%) in beetle abdomen when analyzed with two extraction methods ( is the difference in lipid content between Folchs reagent and Diethyl:Ether). 
FIGURE 5 Burrowing depths (cm ± SEM) of adult female and male L. decemlineata from Padua (open columns) and Petroskoi (filled columns) and reared under a diapause inducing short photoperiod. 
FIGURE 3 (a) Adult L. decemlineata females (15 days after eclosion), (b) fat body lobe (white circle) of pre-diapause and (c) reproductively active Italian female, (d) overwintering tube used in the burrowing depth experiment.
Citations
Latitudinal differences in diapause related photoperiodic responses of European Colorado potato beetles (Leptinotarsa decemlineata)
Philipp Lehmann,Philipp Lehmann,Anne Lyytinen,Saija Piiroinen,Saija Piiroinen,Leena Lindström +5 more
TL;DR: Whether beetles from six European populations along a latitudinal axis are synchronized with their local photoperiodic environmental conditions is studied, which could explain the success of L. decemlineata in expanding to higher latitudes, but further northward range expansion could be constrained by inherent difficulties to initiate overwintering under very longPhotoperiods.
71
Sublethal Pyrethroid Insecticide Exposure Carries Positive Fitness Effects Over Generations in a Pest Insect.
Aigi Margus,Saija Piiroinen,Philipp Lehmann,Philipp Lehmann,Santtu Tikka,Juha Karvanen,Leena Lindström +6 more
TL;DR: Stressful insecticide exposure has positive transgenerational fitness effects in the offspring, and unsuccessful insecticide control of invasive pest species may lead to undesired side effects since survival and higher body mass are known to facilitate population growth and invasion success.
Weak photoperiodic response facilitates the biological invasion of the harlequin ladybird Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae)
TL;DR: Instead of a rapid micro‐evolutionary adaptation of the critical day length to a new climate, the invasive populations of the harlequin ladybird decrease their dependence onPhotoperiod and thus the weak photoperiodic response of SE Asian population of H. axyridis can be considered as a pre‐adaptation further developed during the invasion.
49
The Diapause Lipidomes of Three Closely Related Beetle Species Reveal Mechanisms for Tolerating Energetic and Cold Stress in High-Latitude Seasonal Environments.
Philipp Lehmann,Philipp Lehmann,Melissa Westberg,Patrik Tang,Patrik Tang,Leena Lindström,Reijo Käkelä +6 more
TL;DR: All three species show adaptations that improve energy saving and storage and membrane lipid fluidity during overwintering diapause, and the two native beetle species showed a more canalized lipidomic response, than the recent invader.
Effects of seasonal acclimation on cold tolerance and biochemical status of the carob moth, Ectomyelois ceratoniae Zeller, last instar larvae.
M. Heydari,Hamzeh Izadi +1 more
TL;DR: Most probably, lipids play a role as energy reserve, and low-molecular weight carbohydrates and polyols provide cryoprotection for overwintering larvae of the carob moth.
45
References
A simple method for the isolation and purification of total lipides from animal tissues.
TL;DR: In this paper, the authors described a simplified version of the method and reported the results of a study of its application to different tissues, including the efficiency of the washing procedure in terms of the removal from tissue lipides of some non-lipide substances of special biochemical interest.
64.5K
A rapid method of total lipid extraction and purification.
E. G. Bligh,W. J. Dyer +1 more
TL;DR: The lipid decomposition studies in frozen fish have led to the development of a simple and rapid method for the extraction and purification of lipids from biological materials that has been applied to fish muscle and may easily be adapted to use with other tissues.
51.6K
Rapid method of total lipid extraction and purification
E G Bligh,Dyer W.J.A. +1 more
- 01 Jan 1959
48.8K
Biometery: The principles and practice of statistics in biological research
Robert R. Sokal,F. James Rohlf,Freeman,Co. +3 more
- 01 Jan 1995
TL;DR: In this paper, the authors present a model for the analysis of variance in a single-classification and two-way and multiway analysis of Variance with the assumption of correlation.
23.4K
•Book
Biometry: The Principles and Practice of Statistics in Biological Research
Robert R. Sokal,F. James Rohlf +1 more
- 01 Jan 1969
TL;DR: In this paper, the authors present a model for the analysis of variance in a single-classification and two-way and multiway analysis of Variance with the assumption of correlation.
21.3K