Degang Zhao

Author    Correspondence author
Genomics and Applied Biology, 2024, Vol. 15, No.   
Received: 01 Jan., 1970    Accepted: 01 Jan., 1970    Published: 25 Oct., 2024

This involved constructing high-density genetic maps, analyzing quantitative trait loci (QTL) for growth traits, and identifying key genes involved in various biological processes. The study successfully constructed a high-density genetic map using single-nucleotide polymorphism (SNP) markers, covering 90% of the E. ulmoides genome with a total genetic distance of 4051.11 cM and an average marker distance of 0.45 cM. A total of 44 QTLs associated with growth traits were identified, along with 33 candidate genes related to energy storage, signal transmission, hormones, and metabolic pathways. Additionally, the genome of E. ulmoides was sequenced, revealing insights into sex differentiation and α-linolenic acid biosynthesis. The study also identified 71 NAC transcription factors and their potential role in rubber biosynthesis, and 119 MYB transcription factors involved in growth and development. The integration of functional genomics with breeding in Eucommia ulmoides has provided a solid foundation for future genetic improvement and breeding programs. The identification of key QTLs and candidate genes will facilitate targeted breeding strategies to enhance desirable traits, thereby improving the economic and ecological value of this important species.