Diapause incidence and critical day length of Asian corn borer (Ostrinia furnacalis) populations exhibit a latitudinal cline in both pure and hybrid strains

Huang, Li‐Li; Tang, Jianjun; Chen, Chao; He, Hong‐Ping; Gao, Yulin; Xue, Fang‐Sen

doi:10.1007/s10340-019-01179-5

Cited by 14 publications

(17 citation statements)

References 29 publications

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“…pipiens dynamics ( Figure 4B ). This coincides with similar effects of latitude and photoperiod on diapause induction in other insects (35, 36) and mosquito species (37, 38). Moreover, in both Virginia and California, evidence suggests that these regions are within hybridization zones between Cx.…”

Section: Resultssupporting

confidence: 85%

Semi-field and surveillance data define the natural diapause timeline forCulex pipiensacross the United States

Field

Shepard

Clifton

et al. 2022

Preprint

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Culex pipiens is a globally-distributed mosquito of medical and veterinary importance, serving as a primary vector of West Nile virus (WNV). To survive winter, female Cx. pipiens mosquitoes undergo adult reproductive diapause initiated by photoperiod and temperature cues. While well-studied under laboratory conditions, the environmental signals that promote Cx. pipiens diapause induction in natural settings are less understood. Here, we evaluate Cx. pipiens in laboratory and semi-field studies to examine diapause induction, defining an approximate timeline beginning in late-August where mosquitoes become receptive to diapause. Using gravid (reproductive) mosquito surveillance data as a proxy for adult diapause incidence for locations across the United States (California, Colorado, Connecticut, Illinois, Iowa, Minnesota, Pennsylvania, and Virginia), we demonstrate consistent population declines coinciding with periods of diapause receptivity except in hybridization zones where Cx. quinquefasciatus is present, suggesting that Culex population genetics can significantly impact end-season population trends. Together, this study defines a window for diapause induction across the United States, shaped by temperature, latitude, elevation, and mosquito population genetics. Coinciding with the cessation of WNV activity, these data can have important implications for mosquito control, where targeted efforts prior to diapause induction can decrease mosquito populations and WNV overwintering to reduce mosquito-borne disease incidence the following season.

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Section: Resultssupporting

confidence: 85%

Semi-field and surveillance data define the natural diapause timeline forCulex pipiensacross the United States

Field

Shepard

Clifton

et al. 2022

Preprint

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“…A recent study reported that the ACB’s geographical populations fit a latitudinal cline [ 16 ]. Hybrid offspring from crossing with northern geographic strains, such as Harbin, and with southern strains, such as Ledong (Hainan Province), normally showed an intermediate critical daylength [ 39 , 42 , 43 ].…”

Section: Discussionmentioning

confidence: 99%

“…As a result of climate warming, multivoltine insects are able to gradually increase as a proportion of the total population, rather than experience a complete switch in voltinism [ 44 ]. The influence of a short day length induced diapause in ACB, which could be modified by temperature [ 16 , 20 ]. Results of the present study indicate that higher temperatures could inhibit diapause induction of individuals whose neonates hatched during 7 to 17 July 2018 and 2019.…”

Section: Discussionmentioning

confidence: 99%

“…The unusually lower temperatures during this period resulted in a diminishing effect of higher temperatures facilitated by climate warming, such that there was no significant difference in larval diapause incidence among simulated climate warming and ambient conditions in the field during 2017. Of critical importance, given the primary outcome of increasing multivoltinism in the ACB for several climate-warming scenarios, the risk of feeding damage and maize yield loss in China is likely to increase [ 16 , 24 ]. Going forward, Integrated Pest Management (IPM) strategies may also need to change for the ACB, as has been the case for O. nubilalis in North America [ 45 , 46 ].…”

Section: Discussionmentioning

confidence: 99%

“…In China, the pest’s distribution extends from the far northern cool temperate region to the southern tropical region, where the population displays phenotypic plasticity in voltinism. It can reproduce throughout the year with continuous overlapping generations in subtropical and tropical regions, where it can complete seven or more generations per year [ 15 , 16 ]. ACB egg masses can be found on sweet corn throughout the year with a single peak from early to mid-June in those regions [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

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Voltine Ecotypes of the Asian Corn Borer and Their Response to Climate Warming

Liu

Wang

Zhang

et al. 2021

Insects

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In the Asian corn borer (ACB), Ostrinia furnacalis (Guenée), diapause is governed by a multigenetic constitution that responds to daylength and temperature with seasonality. The ACB displays uni- or multivoltinism, depending on its geographic specificity. Hence, warmer temperatures may result in alternation of voltinism in the ACB, which will help in understanding the ecological consequences of climate warming on insects. In the present study, we investigated the voltinism in two natural populations from Harbin (H) and Gongzhuling (G) as well as a laboratory (L) population (established from the H population in 2017) of the ACB, at ambient and elevated atmospheric CO2 (aCO2 390 μL/L and eCO2 750 μL/L) and temperature (aT and Et = At + 2 °C). From the diapause response, both the uni- and multivoltine ecotypes were coexisting in the H population. The neonate occurrence date of 50% individuals that induced diapause was ca. 10 days later in the G population than in the H population, but it was about 10 days earlier than in the L population. Comparing to the dates of onset and the peak of diapause induction, the G and L populations were less variable than the H population in response to a short and/or shortening daylength in the field. The univoltine individuals could not be eliminated completely after 19 generations of selection. Diapause incidence decreased with a climate-warming scenario, which was temporally specific and could be overridden by significantly low daily average temperatures. The eCO2 did not directly impact the voltinism. On the basis of voltinism, the H population was sympatric for uni- and multivoltine ecotypes, with multivoltinism being dominant. The univoltinism trait was recessive. Climate warming could significantly override the effect of photoperiod, which was yearly dependent. Warmer temperatures and a decreased latitude (shortened daylength), and their interaction, would drive ACB evolution toward diapause homogeneity for multivoltinism.

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Forecasting habitat suitability and niche shifts of two global maize pests: Ostrinia furnacalis and Ostrinia nubilalis (Lepidoptera: Crambidae)

Li,

Dopman,

Dong

et al. 2024

Pest Management Science

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BACKGROUNDOstrinia furnacalis (ACB) and Ostrinia nubilalis (ECB) are devastating pests of the agricultural crop maize worldwide. However, little is known about their potential distribution and niche shifts during their global invasion. Since long‐term selection to past climate variability has shaped their historical niche breadth, such niche shifts may provide an alternative basis for understanding their responses to present and future climate change. By integrating the niche unfilling, stability, and expansion situations into a single framework, our study quantifies the patterns of niche shift in the spatial distribution of these two pests during the different periods.RESULTSOur results show that the overall suitable habitats of ACB and ECB in the future decrease but highly and extremely suitable habitat will become more widespread, suggesting these two insects may occur more frequently in specific regions. Compared with Southeast Asia and Australia, the ACB niche in China exhibited expansion rather than unfilling. For ECB, initial niches have a tendency to be retained in Eurasia despite there also being potential for expansion in North America. The niche equivalency and similarity test results further indicate that niche shifts were common for both ACB and ECB in different survival regions during their colonization of new habitat and their suitable habitat changes during the paleoclimate were associated with climatic changes.CONCLUSIONSThese findings improve our understanding of the ecological characteristics of ACB and ECB worldwide, and will be useful in the development of prevention and control strategies for two insect pests worldwide. © 2024 Society of Chemical Industry.

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Diapause incidence and critical day length of Asian corn borer (Ostrinia furnacalis) populations exhibit a latitudinal cline in both pure and hybrid strains

Cited by 14 publications

References 29 publications

Semi-field and surveillance data define the natural diapause timeline forCulex pipiensacross the United States

Semi-field and surveillance data define the natural diapause timeline forCulex pipiensacross the United States

Voltine Ecotypes of the Asian Corn Borer and Their Response to Climate Warming

Forecasting habitat suitability and niche shifts of two global maize pests: Ostrinia furnacalis and Ostrinia nubilalis (Lepidoptera: Crambidae)

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