Skip to content
Log in

Author

Xin Huang

View on Semantic Scholar

2 papers indexed here

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

Aug 2026

Genome-Wide Analysis of the GGPS Gene Family in Phoebe zhennan and Analysis of the Role of PzGGPS12 in Terpenoid Biosynthesis.

Geranylgeranyl diphosphate synthase (GGPS) is a key enzyme in terpenoid biosynthesis, but its role in Phoebe zhennan remains largely unknown. Here, 14 PzGGPS genes were identified and classified into three groups with conserved gene structures and motifs. Among them, PzGGPS12 was identified as a key gene for terpenoid biosynthesis, wood fragrance formation, and drought tolerance. Functional analyses showed that PzGGPS12 catalyzes the production of terpene precursors and promotes the accumulation of mono-, sesqui-, di-, and triterpenoids, thereby enhancing drought resistance through metabolic flux regulation. Furthermore, PzNAC6, PzWRKY12, and PzC3H8 were identified as major upstream transcription factors controlling the PzGGPS12 expression. These results reveal the regulatory network of PzGGPS12 and highlight its dual roles in wood fragrance formation and drought adaptation, providing new insights into terpenoid metabolism and molecular breeding of P. zhennan.

Jianghong Qian, Xin Huang, Yun-Jie Gu et al. · 0 citations
Open access Jul 2026

Comparative analysis of the chloroplast genomes of three Populus species: Insights into genetic relationships, evolution and classification

Background: Natural hybridisation is prevalent among Populus species in the Hengduan Mountains. Clarifying their interrelationships and hybrid formation mechanisms is critical for taxonomic classification and breeding of the genus. Methods: This study sequenced the complete chloroplast genomes of three Populus species – P. lasiocarpa Oliv. (Sect. Leucoides Spach), P. gonggaensis N. Chao & J.R. He (Sect. Leucoides Spach), and P. cathayana Rehd. (Sect. Tacamahaca Spach) - to investigate their genetic relationships and evolutionary patterns. Results: The chloroplast genome lengths were 156,554 bp (P. lasiocarpa), 156,494 bp (P. gonggaensis), and 156,812 bp (P. cathayana), with all sharing a 37% GC content and conserved quadripartite structure (large/small single-copy regions plus two inverted repeats). They contained 130 or 131 genes (85 or 86 protein-coding, 37 tRNA, 8 rRNA) and 129-142 simple sequence repeat (SSR) loci (primarily adenine/thymine-dominated mononucleotide repeats). Phylogenetic analysis revealed the three species form a monophyletic clade, with P. gonggaensis and P. cathayana showing close affinity. Conclusions: Chloroplast evidence indicated that P. gonggaensis is maternally closely related to P. cathayana, supporting its maternal lineage from P. cathayana. Further nuclear genome evidence is needed to confirm the hybrid origin of this species.

Liangxing Zhang, Jia Mi, Xue-Qin Wan et al. · 0 citations