Effect of age, diet, diapause and juvenile hormone on oogenesis and the amount of vitellogenin and vitellin in the twospotted stink bug, Perillus bioculatus (Heteroptera: pentatomidae)

Adams, T.S.; Filipi, Petra; Yi, Shu Xia

doi:10.1016/s0022-1910(02)00069-0

Cited by 23 publications

(16 citation statements)

References 30 publications

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“…It is conceivable that in O. rufa females the fat body synthesizes vitellogenic proteins during the over-wintering period, even in diapauses, but at a very low level only. A similar situation has been found in other insects with adult diapause (Adams et al 2002;Denlinger 2002).…”

Section: Discussionsupporting

confidence: 86%

“…The progressive depletion of fat body may indicate a gradual consumption of metabolic energy substrates accumulated before entry into diapause (Denlinger 2002;Hahn and Denlinger 2007;Bosch et al 2010). In insects with reproductive diapauses, fat body protein synthesis generally declines significantly (Adams et al 2002;Tatar and Yin 2001). Furthermore, patterns of fat body protein synthesis change during insect diapause.…”

Section: Discussionmentioning

confidence: 99%

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Ovary growth and protein levels in ovary and fat body during adult-wintering period in the red mason bee, Osmia rufa

Wasielewski¹,

Giejdasz²,

Wojciechowicz³

et al. 2011

Apidologie

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Winter months are supposed to be a crucial period for the development of the reproductive system, especially ovaries, in Osmia rufa females. During 7 months of the wintering period (from September till March), the length and width of terminal oocytes and protein concentrations in ovary and fat body tissue extracts of red mason bee females, O. rufa, were studied. Our observations indicate statistically significant differences in the size of terminal oocytes for three different periods of over-wintering

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Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 99%

Ovary growth and protein levels in ovary and fat body during adult-wintering period in the red mason bee, Osmia rufa

Wasielewski¹,

Giejdasz²,

Wojciechowicz³

et al. 2011

Apidologie

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“…There is evidence that JH is responsible for oocyte maturation in N. lugens (Iwanaga & Tojo, 1986; Ayoade et al ., 1999). Oogenesis also requires JH in other hemipteran species such as Oncopeltus fasciatus (Johansson, 1954), Dysdercus intermedius (Dittmann et al ., 1985), Spilostethus pandurus (Ibanez et al ., 1987), R. clavatus (Shinoda et al ., 1996) and Perillus bioculatus (Adams et al ., 2002). Moreover, the JH III was identified as the only type of JH in both nymphal and adult stages of N. lugens (Bertuso & Tojo, 2002).…”

Section: Resultsmentioning

confidence: 99%

Molecular cloning, transcriptional regulation, and differential expression profiling of vitellogenin in two wing‐morphs of the brown planthopper, Nilaparvata lugens Stål (Hemiptera: Delphacidae)

Tufail

Naeemullah

Elmogy

et al. 2010

Insect Molecular Biology

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The brown planthopper, Nilaparvata lugens, is a serious pest of rice crops throughout Asia and exhibits wing dimorphism, with brachypterous adults having reduced wings and macropterous adults possessing fully developed wings. To understand the reproductive strategies in two wing-morphs of this insect, the transcript encoding the major yolk protein precursor, vitellogenin (Vg), was cloned. The complete mRNA transcript was 6314 bp, which encodes a protein of 2063 residues including an 18-residue putative signal peptide. Analysis of the mature protein revealed two vitellogenin-N (or lipoprotein amino-terminal) domains near the N-terminus and a von Willebrand factor type D domain near the C-terminus. In addition, a highly conserved motif GL/ICG, and a number of cysteine residues were identified near the C-terminus. Northern blot analysis identified a ∼6.8 kb Vg gene transcript that was expressed exclusively in the adult female fat body cells. The expression profile revealed that the Vg gene starts to be expressed earlier (on day 3) in brachypters as compared to macropters where the mRNA transcript was observed on day 4. However, in both morphs, the amount of Vg mRNA increased to reach high levels during vitellogenic periods [from day 4 (in brachypters) and day 5 (in macropters) and onwards]. Reflecting the RNA transcription pattern, the Vg signal was detected by immunoblotting on day 3 and day 4 in haemolymph of brachypterous and macropterous females, respectively, and that was increased every day and remained high during the vitellogenic periods. Furthermore, the topical application of juvenile hormone (JH) III had up-regulated the Vg gene expression suggesting that the Vg gene is regulated by JH in N. lugens. In addition, it was demonstrated by Southern blot analysis that there exists a single copy of the gene in the N. lugens genome. A delayed trend in expression (of both the transcript and the protein) demonstrated by macropterous females in the present studies supports the hypothesis of prereproductive long distance migration in this wing-dimorphic species.

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“…This is in contrast in the two‐spotted stinkbug Perillus bioculatus (F.), where JH III is involved in ovarian maturation and Vg synthesis (Adams et al . ).…”

Section: Hormonal Regulation Of Vg Gene Transcription In Different Inmentioning

confidence: 97%

Regulation of vitellogenin genes in insects

Tufail

Nagaba

Elgendy

et al. 2014

Entomological Science

124

127

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Vitellogenins (Vg) genes code for the major egg yolk protein precursor in insects and many other oviparous species. In insects, the Vg gene is expressed extra-ovarially in the fat body in sex-, tissue-and stage-specific manners. During the reproductive phase, the Vg mRNA is expressed in large quantities, which is then translated, secreted into hemolymph and ultimately taken up by the developing oocytes through receptormediated endocytosis. Once sequestered, the Vgs are stored as vitellin (Vn), the main nutritional reserve for the developing embryo. The regulation of Vg genes is directly under the control of hormones at the transcriptional level. Hormones involved in Vg gene transcription are juvenile hormone (JH), ecdysteroids and some neuropeptides. The overall understanding that has emerged is that the insects can be classified, based on the system of hormonal regulation of Vg gene transcription, into three groups: (i) insects (like most of hemipterans) that use only JH for Vg gene transcription; (ii) insects (like dipterans) that need both JH and ecdysteroids for Vg regulation; and (iii) insects like lepidopterans that require JH, ecdysteroids and additional hormones to regulate their reproductive biology. However, why insect species diverge in using different hormones to govern their reproductive physiology remains unclear. The present contribution focuses on the current status of knowledge regarding the regulation of Vg genes in insects. Besides a brief information on biochemical and molecular features, the role of Vg genes as a target of endocrine disruptors will be addressed. Also, the molecular mechanism of Vg gene regulation will be discussed.

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Effect of age, diet, diapause and juvenile hormone on oogenesis and the amount of vitellogenin and vitellin in the twospotted stink bug, Perillus bioculatus (Heteroptera: pentatomidae)

Cited by 23 publications

References 30 publications

Ovary growth and protein levels in ovary and fat body during adult-wintering period in the red mason bee, Osmia rufa

Ovary growth and protein levels in ovary and fat body during adult-wintering period in the red mason bee, Osmia rufa

Molecular cloning, transcriptional regulation, and differential expression profiling of vitellogenin in two wing‐morphs of the brown planthopper, Nilaparvata lugens Stål (Hemiptera: Delphacidae)

Regulation of vitellogenin genes in insects

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