title: Cloning and expression analysis of four heat shock protein genes in Ericerus pela (Homoptera: Coccidae).
abstract: To explore the function of small heat shock protein genes (shsps) and hsp70 in Ericerus pela, we cloned the full-length cDNA sequences of hsp21.5, hsp21.7, hsp70, and hsc70 and the genomic sequence of hsc70. Open reading frames of the four hsps were 570, 564, 1,908, and 1,962 base pairs (bp), respectively, which encode proteins with calculated molecular mass of 21.5, 21.7, 69.8, and 71.6 kDa. Amino acid sequence analysis revealed the presence of the conserved Hsp motifs in all four proteins. The genomic DNA of hsc70 had four introns. ep-hsp21.5 was orthologous and ep-hsp21.7 was species specific. Expression of all four transcripts during heat or cold stress and development was examined by quantitative real-time polymerase chain reaction. All four hsps were upregulated during heat or cold stress in female adults, indicating a correlation between the four hsps and heat or cold-stress tolerance in female adults. ep-hsp21.7 and ep-hsp70 were upregulated during heat stress in male larvae, implying a correlation between the two hsps and heat-stress tolerance in male larvae. The four ep-hsps were also upregulated during the developmental process in males, and ep-hsp21.5, ep-hsp70, and ep-hsc70 were upregulated in females, which indicates their possible role in the developmental regulation of E. pela.
authors.affiliation: *These authors contributed equally to this work.
authors.forename: Wei-Wei
authors.initials: WW
authors.lastname: Liu
authors.affiliation: *These authors contributed equally to this work.
authors.forename: Pu
authors.initials: P
authors.lastname: Yang
authors.affiliation: Research Institute of Resources Insects, Chinese Academy of Forestry, Key laboratory of Cultivating and Utilization of Resources Insects of State Forestry Administration, Kunming 650224, China*These authors contributed equally to this work cafcxm@139.com.
authors.forename: Xiao-Ming
authors.initials: XM
authors.lastname: Chen
authors.affiliation: Research Institute of Resources Insects, Chinese Academy of Forestry, Key laboratory of Cultivating and Utilization of Resources Insects of State Forestry Administration, Kunming 650224, China*These authors contributed equally to this work.
authors.forename: Dong-Li
authors.initials: DL
authors.lastname: Xu
authors.affiliation: Research Institute of Resources Insects, Chinese Academy of Forestry, Key laboratory of Cultivating and Utilization of Resources Insects of State Forestry Administration, Kunming 650224, China*These authors contributed equally to this work.
authors.forename: Yan-Hong
authors.initials: YH
authors.lastname: Hu
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D005260:Female; D020869:Gene Expression Profiling; D050883:HSC70 Heat-Shock Proteins / Q000235:genetics / Q000378:metabolism; D018840:HSP70 Heat-Shock Proteins / Q000235:genetics / Q000378:metabolism; D006360:Heat-Shock Proteins / Q000235:genetics* / Q000378:metabolism; D006430:Hemiptera / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism; D019476:Insect Proteins / Q000235:genetics* / Q000378:metabolism; D007438:Introns; D007814:Larva; D008297:Male; D008969:Molecular Sequence Data; D060888:Real-Time Polymerase Chain Reaction; D016415:Sequence Alignment; D013312:Stress, Physiological; D013696:Temperature
chemical_list: D050883:HSC70 Heat-Shock Proteins; D018840:HSP70 Heat-Shock Proteins; D006360:Heat-Shock Proteins; D019476:Insect Proteins
keywords: Ericerus pela; cold stress; development; heat shock protein; heat stress
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