Molecular Characterization of the Krüppel-homolog 1 and Its Role in Ovarian Development in Sogatella Furcifera (Hemiptera: Delphacidae)

Overview

Journal Mol Biol Rep

Specialty Molecular Biology

Date 2019 Dec 1

PMID 31784857

Citations 6

Authors

Kui Hu

Ping Tian

Lu Yang

Yan Tang

Lin Qiu

Hualiang He

Wenbing Ding

Youzhi Li

Affiliations

Soon will be listed here.

Abstract

Juvenile hormone (JH) plays a pivotal role in insect reproduction. The Krüppel-homolog 1 (Kr-h1) is a JH-inducible zinc finger transcription factor that has also been found to play a role in insect reproduction, however, its function varies across species. In this study, we cloned SfKr-h1 from Sogatella furcifera and investigated its role in ovarian development. The open reading frame of SfKr-h1 is 1 800 bp encoding 599 amino acids. The putative amino acid sequence of SfKr-h1 contains eight putative CH-type zinc finger domains and is highly homologous with the Kr-h1s of other hemipteran species. Expression of SfKr-h1 peaked 96 h after adult emergence and was highest in the ovary. RNA interference (RNAi) knockdown of SfKr-h1 substantially reduced the transcription of SfVg, and arrested ovarian development. These results suggest that SfKr-h1 is critical for normal ovarian development in S. furcifera.

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