Article
Biotechnology & Applied Microbiology
Yuan Ji, Liming Zhu, Zhaodong Hao, Shunde Su, Xueyan Zheng, Jisen Shi, Renhua Zheng, Jinhui Chen
Summary: In this study, a bacterial artificial chromosome (BAC) library of Chinese fir was constructed and sequenced, providing insights into the genome structure of Chinese fir and generating gene data that will facilitate molecular investigations on tree growth mechanisms.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Plant Sciences
Sen Cao, Houyin Deng, Ye Zhao, Zijie Zhang, Yanting Tian, Yuhan Sun, Yun Li, Huiquan Zheng
Summary: This study investigated the cytological and molecular levels of the xylem in red-heart Chinese fir, and discovered the regulatory mechanism of color-related secondary metabolites. The transition zone of red-heart Chinese fir was found to be a critical region for color production, and the phenylpropanoid and flavonoid pathways were closely related to color.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Yonglian Jing, Liming Bian, Xuefeng Zhang, Benwen Zhao, Renhua Zheng, Shunde Su, Daiquan Ye, Xueyan Zheng, Yousry A. El-Kassaby, Jisen Shi
Summary: Using RAD-seq technology, we developed 343,644 high-quality SNP markers to analyze the genetic diversity and population structure of 233 Chinese fir individuals from a breeding program. The breeding population showed high genetic diversity and low differentiation between different breeding generations and provenances. The population structure analysis revealed four subgroups with mixed branches, indicating a weak population structure possibly associated with breeding rather than provenance.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Forestry
Yuan Ji, Hua Wu, Xueyan Zheng, Liming Zhu, Zeli Zhu, Ya Chen, Jisen Shi, Renhua Zheng, Jinhui Chen
Summary: Improving the heat and drought resistance of Chinese fir through molecular biology technology is a good option, but the lack of comprehensive genetic information resources for C. lanceolata hinders more comprehensive molecular studies.
Article
Forestry
Jiahuan Guo, Huili Feng, Pierce McNie, Weifeng Wang, Changhui Peng, Lei Feng, Jiejie Sun, Chang Pan, Yuanchun Yu
Summary: Forest conversion has long-term negative effects on soil microbial communities, reducing diversity and richness, thereby impacting soil nitrogen cycling.
Article
Agricultural Engineering
Xiaoqin Yang, Xiaorui Yu, Yun Liu, Zhengjun Shi, Liping Li, Sida Xie, Guolei Zhu, Ping Zhao
Summary: Metabolomics analysis revealed that older Chinese fir trees accumulate a greater diversity of secondary metabolites, particularly phenolic compounds and flavonoids, in their heartwood and sapwood compared to younger trees. Changes in the flavonoid biosynthesis pathway were identified as a potential driver of wood color difference between heartwood and sapwood in Chinese fir.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Forestry
Bohan Chen, Jiao Wang, Xuan Duan, Fengxia Zhao, Weidong Zhang, Xin Guan, Longchi Chen, Qingkui Wang, Silong Wang, Qingpeng Yang
Summary: Nitrogen deposition affects the distribution of rhizodeposition-derived carbon in Chinese fir, leading to a decrease in its overall amount and distribution into different aggregate classes.
Article
Forestry
Weishan Zeng, Yan Su, Rong Huang, Dehuo Hu, Shaowei Huang, Huiquan Zheng
Summary: Accurate estimation of genetic relationships and diversity is crucial for breeding programs. This study used a combination of pedigree map and marker-derived information to assess the genetic relatedness of a complex parent tree population in Chinese fir. The results showed that SSRs and SNPs can effectively clarify genetic relationships in the absence of complete pedigree records. The study also revealed a wide genetic variation in the selected parent trees, providing important input for Chinese fir breeding.
Article
Forestry
Ruping Wei, Dehuo Hu, Jinhui Chen, Huiquan Zheng, Jisen Shi
Summary: In this study, the morphological characteristics were used to evaluate the Pi-efficiency stress in Chinese fir clones. RNA sequencing was performed on a Pi-tolerant clone and a Pi-sensitive clone, and gene function annotation and weighted correlation network analysis (WGCNA) were conducted. A total of 60 hub genes related to phosphate accumulation under Pi-deficiency stress were identified. Furthermore, the differences in response to Pi-deficiency stress between Pi-sensitive and Pi-tolerant clones were analyzed using RNA-seq data, and the validity of the transcriptome data was confirmed through real-time quantitative polymerase chain reaction (RT-PCR) analyses. This study provides new insights into the molecular mechanisms of Pi-efficient utilization in Chinese fir clones.
Article
Forestry
Benwen Zhao, Liming Bian, Qihang Feng, Jinzhang Wu, Xuefeng Zhang, Renhua Zheng, Xueyan Zheng, Zhiyuan Yang, Zhiqiang Chen, Harry X. Wu, Jisen Shi
Summary: In this study, RAD-seq technology was used to assess the genetic diversity of breeding populations of Chinese fir and estimate the genetic gain of important traits. The fourth cycle breeding population was constructed using a combination of multiple populations and core-main populations methods to achieve a balance between genetic gain and genetic diversity. This structured breeding population has the potential to support the preservation of germplasm resources for future climate change.
Article
Forestry
Hanbin Wu, Jie Lei, Xiaoyan Li, Hong Wang, Aiguo Duan, Jianguo Zhang
Summary: The study highlights the importance of provenance selection for Chinese fir in the face of potential adverse effects of climate change. The genetic effects of different forest stages were analyzed, showing that genotype played a significant role in growth variability. Provenances with excellent productivity tended to aggregate in mature forests, while those with poorer growth were located in the northern marginal production area.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Forestry
Na Lin, Ninglong Deng, Dehao Lu, Huiyan Xie, Mingchun Feng, Shiqing Chen
Summary: This study analyzed the impact of traditional thinning on tree growth and soil nutrients in Chinese fir plantations. The results showed that thinning promoted tree growth and accumulation of soil nutrients, and also enhanced drought tolerance during extreme drought conditions.
Article
Forestry
Shubin Li, Xinyang Yan, Xiaoyan Huang, Shalom Daniel Addo-Danso, Sizu Lin, Lili Zhou
Summary: Chinese fir, the most cultivated timber species in China, is limited in survival and productivity due to drought stress caused by the heterogeneity of precipitation. This study screened two drought-tolerant clones and compared their physiological and molecular responses to drought. The high-drought-tolerant clone showed higher antioxidant enzyme abilities and exhibited significant up-regulation of genes related to drought stress responses and key pathways. These findings contribute to the understanding of drought tolerance mechanisms and provide guidance for screening drought-tolerant genes and breeding drought-tolerant Chinese fir clones.
Article
Agronomy
Jiao He, De-Wei Li, Ya-Nan Zhu, Yuan-Zhi Si, Jin-Hua Huang, Li-Hua Zhu, Jian-Ren Ye, Lin Huang
Summary: Chinese fir, a valuable fast-growing tree species, is threatened by anthracnose caused by Colletotrichum species. In this study, researchers conducted a survey and identified five Colletotrichum species associated with anthracnose on Chinese fir. Pathogenicity tests revealed significant differences in the pathogenicity of these species on the host plants.
Article
Forestry
Guangqiu Cao, Lihua Wu, Xiaoyu Qu, Linli Dai, Yiquan Ye, Shanshan Xu, Chao Wu, Yu Chen
Summary: This study investigated the impact of different successive planting models on the soil microbial community and soil properties in Chinese fir plantations. The results showed that M1 and M3 planting models had better soil properties and microbial diversity, suggesting the benefits of prolonging the rotation period and establishing mixed plantations for maintaining diversity.