Acta Veterinaria et Zootechnica Sinica ›› 2024, Vol. 55 ›› Issue (12): 5549-5566.doi: 10.11843/j.issn.0366-6964.2024.12.020

• Animal Genetics and Breeding • Previous Articles     Next Articles

Full-length Transcriptome Sequencing of Sika Deer Antler and Mining of Antler Yield-related Genes

MIN Xiangyu(), WEI Jiali, XU Biao, LIU Huitao, ZHENG Junjun*(), WANG Guiwu*()   

  1. Institute of Special Animal and Plant Sciences of Chinese Academy of Agricultural Sciences, Changchun 130112, China
  • Received:2024-03-14 Online:2024-12-23 Published:2024-12-27
  • Contact: ZHENG Junjun, WANG Guiwu E-mail:mxy10504@163.com;zhengjunjun@caas.cn;wangguiwu2005@163.com

Abstract:

The study aimed to obtain the full-length transcript and structure information of the antler tissue of Sika deer, and to further mine the functional genes that affect the antler production of Sika deer. In this study, six two-sained healthy male Dongda Sika deer with the same feeding and management conditions were used to collect antler tissues from the same parts of the deer. According to the antler weight, the antler was divided into 2 groups of high and low production with 3 replicates per group. The whole length transcriptome of antler with high and low production were sequenced using PacBio Sequel platform and Illumina platform, respectively. Combined with the next generation sequencing technology of high and low yield groups, the alternative splicing, functional enrichment and Hub genes were predicted and analyzed by SUPPA, KOBOS-I and Cytoscape tools. The effective insertion fragments of 36 074 385 bp and 32 413 962 bp were obtained in the high and low yield groups, respectively. Transcription factor annotation showed that the number of bHLH family transcripts in the high yield group was higher than that of TF_bZIP family, but the opposite was observed in the low yield group. There were 6 644 alternative splicing events in the high production group and 7 626 alternative splicing events in the low production group. COL1A1 played a major role in multiple fusion genes. A total of 207 differentially expressed genes were screened out from the two groups of samples. KEGG enrichment showed that the differentially expressed genes were mainly concentrated in the synthesis and secretion of parathyroid hormone and cholesterol metabolism pathways. Eleven Hub genes were identified, including APOB, SH3GL2, SYT1, ANGPTL4, FGF21, CACNA1E, SERPINF2, CACNB4, KLK4, LRP2, KCNA1. This study provides a new theoretical basis and research path for further functional gene identification and the development of molecular breeding strategies.

Key words: sika deer antler, full-length transcriptome sequencing, anlter producing characters, functional gene, difference analysis

CLC Number: