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Age at r.pr.ductive matur.ty and effect of age and time of day on sex attr.ction in the potato psyllid Bacter.cer. cocker.lli

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Insect Science 2012年第5期19卷 585-594页

作者： christelle guedot david r. horton peter j. landolt U.S. Depar.ment of Agr.cultur. Agricultural Research Service 5230 Konnowac Pass Road Wapato WA 98951 USA

The potato psyllid, Baeter.cer. （= Par.tr.oza） cocker.lli （gulc）（Hemipter.： Tr.ozidae）, is a maj.r.pest of potato. Studies wer. conducted to deter.ine the age at which both males and females r.ach r.pr.ductive matur.ty and the effect of age and time of day on sex attr.ction. Adult B. cocker.lli r.ach r.pr.ductive matur.ty within 48 h post-eclosion, with females being matur. on the day of eclosion and males at 1 day post-eclosion. Oviposition gener.lly began 2 days after.mating but was delayed when females mated within 2 days post-eclosion. In labor.tor. olfactometer.assays, the age of females used as odor.sour.es and the age of males assayed to these odor. did not affect sex attr.ction, with both younger.（1-4-day-old） and older.（8-10-day-old） males being attr.cted to females, r.gar.less of female age （1-4-day-old or.8-10-day-old）. Males assayed to live females at differ.nt times dur.ng the photophase （between 8：00 and 20：00 hour.） wer. attr.cted to females between 11：00 and 17：00 hour., showing a tempor.l per.odicity in sex attr.ction with B. cocker.lli at least dur.ng the photophase.

关键词： mate attr.ction olfactometer oviposition per.odicity potato pr.fer.nce,Tr.ozidae

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Char.cter.zation of thr.e tr.nscr.pts encoding small heat shock pr.teins expr.ssed in the codling moth, Cydia pomonella （Lepidopter.： Tor.r.cidae）

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Insect Science 2011年第5期18卷 473-483页

作者： Stephen F. Gar.zynski Thomas r. Unr.h christelle guedot Lisa G. Neven USDA-Ar. Yakima Agricultural Research Laboratory Wapato Washington USA

Codling moth is a maj.r.pest of apples and pear. wor.dwide. Incr.asing knowledge of how this insect r.sponds to envir.nmental str.ss will impr.ve field and posthar.est contr.l measur.s used against it. The small heat shock pr.teins （sHsps） play a maj.or.r.le in cellular.r.sponses to envir.nmental str.ssor.. A degener.te oligonucleotide pr.mer. designed against the conser.ed α-cr.stallin domain, was used in 3＇ r.pid amplification of complementar. DNA （cDNA） ends r.actions to amplify tr.nscr.pts encoding sHsps expr.ssed in the codling moth cell line, Cp169, subj.cted to heat shock. Thr.e full-length cDNAs wer. cloned fr.m Cp169 cells that contained open r.ading fr.mes encoding sHsps. The cDNA for.CpHsp 19.8 was 795 bp encoding 177 amino acids. The cDNA for.CpHsp 19.9 was 749 bp encoding 175 amino acids. The cDNA for.CpHsp22.2 was 737 bp encoding 192 amino acids. Analysis of the pr.tein sequences of the thr.e CpHsps indicated the pr.sence of 83 amino acids with homology to the α-cr.stallin domain. For.each of the CpHsps, the α-cr.stallin domain was sur.ounded by diver.ent N- and C-ter.inal r.gions, consistent with the conser.ed str.ctur.l featur.s of sHsps. r.al-time polymer.se chain r.action, used to deter.ine the expr.ssion patter.s of each of the sHsps in differ.nt developmental stages of codling moth r.vealed the pr.sence of tr.nscr.pts in all stages tested. Consistent with char.cter.stics of other.sHsps, expr.ssion of CpHsp tr.nscr.pts wer. gr.atly enhanced when insects wer. subj.cted to heat shock. The r.sults of this r.sear.h can be used as a guide to study the r.les of sHsps in codling moth contr.l using var.ous post-har.est tr.atments.

关键词： α-cr.stallin domain heat shock r.sponse qPCr

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