Assembly and Comparative Analysis of the Complete Mitochondrial Genome of Ilex rotunda Thunb.

Forests, Journal Year: 2024, Volume and Issue: 15(7), P. 1117 - 1117

Published: June 27, 2024

Ilex rotunda Thunb. stands as a representative tree species in subtropical evergreen broad-leaved forests, widely distributed across southeast Asia. This holds significant value forestry due to its ecological resilience and adaptability. Although researchers have conducted in-depth research on the plastid genome (plastome) of I. rotunda, mitochondrial (mitogenome) this has remained undocumented. In present study, we successfully sequenced assembled mitogenome. The mitogenome circular structure is 567,552 bp total length, with GC content 45.47%. composition encompasses 40 protein-coding genes, along 3 rRNA genes 19 tRNA genes. Notably, exhibits universal distribution repetitive sequences, but length repeats contributes relatively small proportion (4%) whole mitogenome, suggesting that do not serve primary cause amplification mitogenomes. Collinear analysis indicates very conservative within Aquifoliales species. Additionally, our identified 51 fragments genomic DNA, which migrated from plastome into five remaining intact. Eventually, phylogenetic analyses based plastomes mitogenomes 36 angiosperms determine be basal group campanulids. study establishes bedrock for prospective investigations molecular breeding research.

Language: Английский

Whether the Natural Forest Logging Ban Promotes the Improvement and Realization of the Ecosystem Service Value in Northeast China: A Regression Discontinuity Design

Forests, Journal Year: 2024, Volume and Issue: 15(7), P. 1203 - 1203

Published: July 11, 2024

To protect forest land from loss and mitigate the global climate crisis, China has proposed a stringent natural protection plan, known as China’s logging ban (NFLB). This policy aims to halt over-exploitation of forests, restore ecosystem functions, promote regional green economic development. study uses regression discontinuity design (RDD) model quantitatively comprehensively assess effectiveness this in key state-owned regions Northeast China. Additionally, it analyzes heterogeneity structural characteristics policy’s effects on internal composition ecological systems. The empirical results are follows: (1) Ecological impacts: successfully achieved its objectives by significantly enhancing quality value services. However, also had notable adverse impact development, particularly timber supply sector, reducing conversion efficiency service values into benefits. (2) Structural analysis: effectively promoted various services, regulatory support with LATE estimate approximately 8.47 units. implementation caused negative growth output supply-oriented products, significance level was lower than 0.1. Conversely, estimates for different types GDP indicate supply-type due policy, p < (3) Heterogeneity: On one hand, simplistic singular approach prohibition may constrain values. other although disrupted majority traditional enterprise operations, business models focusing technology improvements were able impact.

Language: Английский