Proteomic investigation of Peristenus spretus ovary and characterization of an ovary-enriched heat shock protein

文献类型： 外文期刊

第一作者： Tian, Miaomiao

作者： Tian, Miaomiao;Xia, Yayun;Mao, Jianjun;Luo, Shuping;Tian, Miaomiao;Xia, Yayun;Cai, Ducheng

作者机构：

关键词： Heat shock protein; hsp83; longevity; Ovary proteome; Peristenus spretus

期刊名称：BULLETIN OF ENTOMOLOGICAL RESEARCH （ 影响因子：1.814； 五年影响因子：2.0 ）

ISSN： 0007-4853

年卷期： 2021 年 111 卷 3 期

页码：

收录情况： SCI

摘要： Peristenus spretus (Hymenoptera: Braconidae) is one of the most important endoparasitoids used for biological control of the green mirid bug, Apolygus lucorum Meyer-Dur (Heteroptera: Miridae). However, what we know about its reproductive genetics is very limited. Here, the composition of ovarian proteins in P. spretus was analyzed. Mass spectrum data searched against the non-redundant NCBI protein and UniProt protein database identified 1382 proteins and revealed an enrichment of the heat shock protein 83 (HSP83) in P. spretus ovary. The Pshsp83 complete cDNA is 2175 bp in length and encodes a protein of 724 amino acids with a calculated molecular mass of 83.4 kDa and a theoretical isoelectric point of 4.87. Transcription of Pshsp83 appeared from days 1 to 13 post-emergence and peaked at 13th day. Immuno-localization showed that the HSP83 protein was present in cytoplasm of germarium and in egg chambers of the whole ovariole. The transcript abundance of Pshsp83 fluctuated drastically after heat shocks at different temperatures and the maximum emerged at 35 degrees C. The exposure to 35 degrees C caused no dramatic effects on reproductive parameters of adult females such as pupation rate, cocoon weight, emergence rate, sex ratio and developmental duration, but did on longevity. These results suggested that the HSP83 protein is involved in life-span regulation in the P. spretus.

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