Reproductive performance among color morphs of Diaphorina citri Kuwayama, vector of citrus greening pathogens

Ibáñez, Freddy; Racine, Kristin; Hoyte, Angelique; Stelinski, Lukasz L.

doi:10.1016/j.jinsphys.2019.103904

Cited by 13 publications

(14 citation statements)

References 29 publications

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“…Physiological plasticity in insects can increase survival in the face of diverse environmental challenges (Chown 2001). In ACP, color polyphenism among genetically similar individuals has been linked to physiological states that differ in important life traits such as reproductive capacity, reproductive behavior, dispersal, resistance to insecticides, cold resistance, immunity, and interactions with microbes (e.g., CLas) (Tiwari et al 2013;Martini et al 2014;Stockton et al 2017;Hosseinzadeh et al 2019;Ibanez et al 2019;Chen et al 2019;Hosseinzadeh et al 2021;Martini et al 2021). However, associations between color morphology and feeding behavior have not been explored for all three ACP color types (blue-green, grey-brown, and yellow-orange), and investigations thus far have been limited to a single population of ACP collected in Florida (Ebert and Rogers 2020).…”

Section: Discussionmentioning

confidence: 99%

“…Even though the mechanisms behind color type shifts are not clear, ACP color morphs exhibit significant differences in reproductive potential (Ibanez et al 2019), reproductive behavior (Stockton et al 2017), dispersal capacity (Martini et al 2014), resistance to insecticides (Tiwari et al 2013;Chen et al 2019), cold resistance (Martini et al 2021), immunity (Hosseinzadeh et al 2021) and CLas acquisition and inoculation (Hosseinzadeh et al, 2019). Many of these metrics (e.g., reproduction, dispersal or immunity) are energetically demanding processes that may drive foraging and feeding behaviors required to obtain sufficient nutrients.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Variation in Feeding Behavior by Color Morph in the Asian citrus Psyllid (Diaphorina citri)

et al. 2021

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The Asian citrus psyllid (ACP) Diaphorina citri (Hemiptera:Liviidae), vector of huanglongbing disease, displays a high degree of color polyphenism. In the adult stage, ACP exhibits abdominal colors that can be separated into three color groupings: blue-green, grey-brown and orange-yellow. Color morphology has been shown to influence important and energetically costly psyllid life traits including reproduction, dispersion, immune defense and resistance to insecticides. Despite this, it remains unclear how color morphology is correlated with feeding behavior. Understanding variation in feeding behavior of the ACP color morphs is critical to better understanding how ACP populations utilize host-plants and to assess potential risk for transmission of the causal agent of huanglongbing disease. We compared the feeding behavior of the three ACP color morphs by using electropenetrography (EPG). We did not detect differences in the feeding behavior activities at phloem or xylem tissues when comparing the three-color morphs. Furthermore, there were no differences in feeding behavioral parameters before reaching phloem or xylem tissues. Our results suggest energy requirements are similar between color morphs and feeding behavior parameters associated with CLas transmission are potentially similar between color morphs.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of Variation in Feeding Behavior by Color Morph in the Asian citrus Psyllid (Diaphorina citri)

et al. 2021

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“…Fecundity measurement and ovarian morphology observation of ACP feeding on M. paniculata flush shoots and mature leaves Newly emerged virgin ACP adults (less than 24 h old) with blue/ green colour morphotype were identified and paired by a sex ratio of 1:2 (1 female to 2 males) (Wenninger and Hall, 2008;Wenninger et al, 2009;Ibanez et al, 2019). They were then introduced onto the mature leaves of M. paniculata for 7 days to ensure adequate mating.…”

Section: Plants and Insectsmentioning

confidence: 99%

Transcriptome analysis reveals TOR signalling‐mediated plant flush shoots governing Diaphorina citri Kuwayama oviposition

Guo

Liu

Wang

et al. 2021

Insect Molecular Biology

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Asian Citrus Psyllid (ACP), Diaphorina citri, is a key vector transmitting the causative agent of Huanglongbing (HLB) disease. Population growth of ACP is evident after feeding on plant flush shoots, as they only oviposit here. However, the underlying mechanism as to why flush shoots govern oviposition is unclear. This study compares the fecundity and ovarian morphology of ACP between young flush and mature leaves. Furthermore, the transcriptome of mated females infesting Murraya paniculata was analysed. Finally, the gene of the key Target of Rapamycin (TOR) signalling pathway was silenced by RNAi. Results indicated that flush shoot feeding activated the development of the psyllids ovary and therefore induced oviposition. A total of 126 and 2794 differentially expressed genes were detected at 1 and 5 days, respectively, after pest infestation of flush shoots compared to mature leaves. Many genes are involved in protein metabolism, Mitogen‐Activated Protein Kinase (MAPK) signalling pathway, hormone synthesis, and TOR signalling pathway: all thought to activate reproduction. Silencing of the positive regulator gene DcRheb in the TOR pathway resulted in lower levels of ecdysone and juvenile hormone and decreased vitellogenin synthesis, further disrupting reproductive ability. This study enhances understanding of the molecular mechanism underlying ACP's reproductive strategy.

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“…Color of male abdomens has been linked to the amount of fat body in the abdomen [45]. Recently, Ibanez et al [51] demonstrated that higher reproductive output of blue/green than gray/brown female D. citri is specifically associated with expression of the genes VgA1-like and Kr-h1 , which occurs during oocyte development. Furthermore, VgA1-like exhibited female-specific expression [51].…”

Section: Dispersalmentioning

confidence: 99%

Ecological Aspects of the Vector-Borne Bacterial Disease, Citrus Greening (Huanglongbing): Dispersal and Host Use by Asian Citrus Psyllid, Diaphorina Citri Kuwayama

Stelinski

2019

Insects

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Determining the influence of abiotic and biotic factors on pest dispersal behavior is a critical component of integrated pest management. The behavioral and physiological traits of movement of the Asian Citrus Psyllid (ACP), Diaphorina citri Kuwayama, has received significant attention. Field and laboratory experiments have explored the physiological capabilities of ACP dispersal, as well as, the abiotic and biotic drivers that initiate movement behavior. Abiotic factors such as temperature, barometric pressure, humidity, landscape, and orchard architecture, as well as, biotic factors including mating status, pathogen infection, and morphotype have been investigated in great detail. The current review focuses on dispersal of ACP with the goal of synthesizing current knowledge to suggest management tactics. Overall, vision serves as the primary modality for host finding in ACP. Current data suggest that ACP populations increase more within uniform landscapes of seedling trees, as compared to mature orchards with randomly interspersed young seedlings. The data also suggest that establishment and conservation of visual and physical barriers might be beneficial to protect orchards from ACP. Management of ACP must take into account large-area cooperation, orchard border surveillance and treatment, removal of non-crop habitat, and an understanding that immigration can occur from distances of several kilometers.

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Reproductive performance among color morphs of Diaphorina citri Kuwayama, vector of citrus greening pathogens

Cited by 13 publications

References 29 publications

Assessment of Variation in Feeding Behavior by Color Morph in the Asian citrus Psyllid (Diaphorina citri)

Assessment of Variation in Feeding Behavior by Color Morph in the Asian citrus Psyllid (Diaphorina citri)

Transcriptome analysis reveals TOR signalling‐mediated plant flush shoots governing Diaphorina citri Kuwayama oviposition

Ecological Aspects of the Vector-Borne Bacterial Disease, Citrus Greening (Huanglongbing): Dispersal and Host Use by Asian Citrus Psyllid, Diaphorina Citri Kuwayama

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