Analysis of the molecular mechanism endogenous hormone regulating axillary bud development in Pinus yunnanensis.

Background: P. yunnanensis, a distinctive economic tree species native to Yunnan Province in China, possesses axillary buds that serve as superior material for asexual propagation. However, under natural growth conditions, the differentiation of these axillary buds is notably scarce.

Identification and Evaluation of Diploid and Tetraploid Sims.

Sims (2n = 18) is a perennial plant with high utilization values, but its spontaneous polyploidy in nature has yet to be seen. Thus, this study aims to enhance our understanding of polyploidy and provide rudimentary knowledge for breeding new cultivars. In this study, colchicine-induced tetraploid (2n = 36) was used as experimental material (T1, T2, and T3) to explore the variances between it and its diploid counterpart in morphology, physiology, and biochemical characteristics, and a comparison of their performance under cold stress was conducted.

Effects of Combined Nitrogen-Phosphorus on Biomass Accumulation, Allocation, and Allometric Growth Relationships in Seedlings after Top Pruning.

(Franch), a species endemic to southwestern China, provides significant ecological and economic benefits. The quality of afforestation can be enhanced by promoting high-quality sprout growth. This study analyzed the effects of six fertilization treatments following top pruning: T1 (N: 0 g/plant; P: 0 g/plant), T2 (N: 0 g/plant; P: 2 g/plant), T3 (N: 0 g/plant; P: 4 g/plant), T4 (N: 0.

The Response and Evaluation of Morphology, Physiology, and Biochemistry Traits in Triploid Sims 'Mantianxing' to Drought Stress.

As one of the most influential environmental factors, drought stress greatly impacts the development and production of plants. Triploid-induced Sims 'Mantianxing' is an important new cultivar for multi-resistance variety selective breeding, which is one of the breeding essential targets. However, the performance of triploid 'Mantianxing' under drought stress is unknown.

Physiological Characteristics and Transcriptomic Responses of Lateral Branching to Different Shading Environments.

is an important component of China's economic development and forest ecosystems. The growth of seedlings experienced a slow growth phase, which led to a long seedling cultivation period. However, asexual reproduction can ensure the stable inheritance of the superior traits of the mother tree and also shorten the breeding cycle.

In vitro regeneration of triploid from mature endosperm culture of Passiflora edulis "Mantianxing".

The regeneration of shoots from endosperm tissue is a highly effective method to obtain triploid plants. In this study, we elucidated the establishment of an in vitro regeneration system from endosperm culture for the production of Passiflora edulis "Mantianxing." The highest callus induction rate (83.

QTL mapping for growth-related traits by constructing the first genetic linkage map in Simao pine.

Background: Simao pine is one of the primary economic tree species for resin and timber production in southwest China. The exploitation and utilization of Simao pine are constrained by the relatively lacking of genetic information. Construction a fine genetic linkage map and detecting quantitative trait locis (QTLs) for growth-related traits is a prerequisite section of Simao Pine's molecular breeding program.

The complete chloroplast genome of .

Here, we report the complete chloroplast (cp) genome of . The complete chloroplast genome is 119,617 bp in length. There were 112 genes in the genome, including 73 protein-coding genes, 35 tRNA genes, and 4 rRNA genes.

The complete chloroplast genome of .

Here, we report the complete chloroplast genome of . The genome is 116,940 bp in size, which is comprised of a large single-copy (LSC) region of 74,075 bp, a small single-copy (SSC) region of 40,425 bp, and two short inverted repeat (IR) regions of 1,220 bp. The overall GC content of the plastome was 38.

The complete chloroplast genome of a X.W.Li et G.S.

X.W.Li et G.

The complete chloroplast genome of .

In this study, we reported and characterized the complete chloroplast genome sequence of . The chloroplast genome was determined to be 158,250 bp in length. It contained large single-copy (LSC) and small single-copy (SSC) regions of 84,929 bp and 12,663 bp, respectively, which were separated by a pair of 30,329 bp inverted repeat (IR) regions.

The complete chloroplast genome of Gaertn. F.

Gaertn. F., naturally distributes in Southern China, which is an elite natural tree with high economic and medicinal value.

Identification and characterization of microsatellite markers in var. (Pinaceae).

Premise Of The Study: Microsatellite primers were developed in var. (Pinaceae), a species native to southwestern China, to investigate its genetic diversity and population structure in order to provide information for the conservation and management of this species.

Methods And Results: Using next-generation sequencing, a total of 2349 putative simple sequence repeat primer pairs were designed.

Growth promotion of Yunnan Pine early seedlings in response to foliar application of IAA and IBA.

A field experiment was conducted using a 3 × 3 orthogonal regression design to explore the growth promotion of one-year-old Yunnan pine seedlings (Pinus yunnanensis Franch.) in response to foliar application of IAA (indole-3-acetic acid) at rates of 0, 200 and 400 mg·L(-1) and IBA (indole-3-butyric acid) at rates of 0, 200 and 400 mg·L(-1) in order to promote the growth during the seedlings' early stage. The experiment was conducted at the Lufeng Village Forest Farm of Yiliang County in Kunming, Yunnan, China.