Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 20, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/ijms20040855
Keywords
transcriptome; Chinese chestnut; Dryocosmus kuriphilus; infestation; gall formation
Funding
- National Natural Science Foundation of China [31500514]
- Key Research and Development Program (Modern Agriculture) Project of Jiangsu Province Science and Technology Department [BE2016385]
- Central finance forestry promotion project of State Administration of Forestry and Grassland [[2018] TG01]
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Chinese chestnut (Castanea mollissima Blume) can be infested by Dryocosmus kuriphilus Yasumatsu, resulting in gall formation and yield losses. Research on the control of gall wasps using genomics approaches is rarely reported. We used RNA-seq to investigate the dynamic changes in the genes of a chestnut species (C. mollissima B.) during four gall-formation stages caused by D. kuriphilus. A total of 21,306 genes were annotated by BLAST in databases. Transcriptome comparison between different gall-formation stages revealed many genes that were differentially expressed compared to the control. Among these, 2410, 7373, 6294, and 9412 genes were differentially expressed in four gall-formation stages: initiation stage (A), early growth stage (B), late growth stage (C), and maturation stage (D), respectively. Annotation analysis indicated that many metabolic processes (e.g., phenylpropanoid biosynthesis, secondary metabolism, plant-pathogen interaction) were affected. Interesting genes encoding putative components of signal transduction, stress response, and transcription factors were also differentially regulated. These genes might play important roles in response to D. kuriphilus gall formation. These new data on the mechanism by which D. kuriphilus infests chestnuts could help improve chestnut resistance.
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