Effects of enclosure period on population structure of Caragana microphylla and interspecific associations in the Inner Mongolia shrub-encroached grasslands

2021 ◽  
Vol 41 (14) ◽  
Author(s):  
董轲，丁新峰，郝广，王金龙，赵念席，高玉葆 DONG Ke
Keyword(s):  
Population Structure ◽  
Inner Mongolia ◽  
Interspecific Associations ◽  
Caragana Microphylla

scholarly journals Snow resisting capacity of Caragana microphylla and Achnatherum splendens in a typical steppe region of Inner Mongolia, China

2019 ◽  
Vol 12 (2) ◽  
pp. 294-302
Author(s):  
Min Yan ◽  
Hejun Zuo ◽  
Haibing Wang ◽  
Zhi Dong ◽  
Gangtie Li
Keyword(s):  
Inner Mongolia ◽  
Typical Steppe ◽  
Steppe Region ◽  
Caragana Microphylla

Genetic diversity and genetic relationship of Caragana microphylla, Caragana davazamcii and Caragana korshinskii on the Inner Mongolia Plateau, China

2008 ◽  
Vol 28 (8) ◽  
pp. 3729-3736 ◽  
Author(s):  
Guo Hongyu ◽  
Gao Yubao ◽  
Ma Chengcang ◽  
Ren Anzhi ◽  
Wu Jianbo ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Relationship ◽  
Inner Mongolia ◽  
Caragana Korshinskii ◽  
Caragana Microphylla ◽  
Relationship Of ◽  
Inner Mongolia Plateau

An investigation on the population structure of mixed infections of Mycobacterium tuberculosis in Inner Mongolia, China

Tuberculosis ◽  
2015 ◽  
Vol 95 (6) ◽  
pp. 695-700 ◽  
Author(s):  
Xiaoying Wang ◽  
Haican Liu ◽  
Jianhao Wei ◽  
Xiaocui Wu ◽  
Qin Yu ◽  
...  
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Population Structure ◽  
Inner Mongolia ◽  
Mixed Infections

scholarly journals Assessing Genetic Diversity and Estimating the Inbreeding Effect on Economic Traits of Inner Mongolia White Cashmere Goats Through Pedigree Analysis

2021 ◽  
Vol 8 ◽  
Author(s):  
Zhiying Wang ◽  
Bohan Zhou ◽  
Tao Zhang ◽  
Xiaochun Yan ◽  
Yongsheng Yu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Inbreeding Depression ◽  
Inner Mongolia ◽  
Inbreeding Coefficient ◽  
Production Performance ◽  
Pedigree Information ◽  
Economic Traits ◽  
Inbreeding Coefficients ◽  
Cashmere Goats

Objective: The purpose of this study was to discover the population structure and genetic diversity of Inner Mongolia White Cashmere goats (IMCGs) and demonstrate the effect of inbreeding on the live body weight (LBW), cashmere yield (CY), fiber length (FL), and fiber diameter (FD) of IMCGs.Materials and Methods: All data were collected from pedigree information and production performance records of IMCGs from 1983 to 2019. The population structure and genetic diversity were analyzed by Endog 4.8 software. Inbreeding coefficients were obtained by the pedigree package in R. Then, a linear regression model was used to analyze how inbreeding influences economic traits in IMCGs. Four levels of inbreeding coefficients (Fi) were classified in this study, including Fi = 0, 0< Fi ≤ 6.25, 6.25< Fi ≤ 12.5 and Fi≥12.5. Variance analysis was performed to determine whether inbreeding levels had a significant effect on economic traits in IMCGs.Results: The proportions of rams and dams in IMCGs for breeding were relatively small, with values of 0.8 and 20.5%, respectively. The proportion of inbred animals in the entire population was high, with values up to 68.6%; however, the average inbreeding coefficient and relatedness coefficient were 4.50 and 8.48%, respectively. To date, the population has experienced 12 generations. The average generation interval obtained in the present study was 4.11 ± 0.01 years. The ram-to-son pathway was lowest (3.97 years), and the ewe-to-daughter pathway was highest (4.24 years). It was discovered that the LBW, CY, and FL increased by 3.88 kg, 208.7 g, and 1.151 cm, respectively, with every 1% increase in the inbreeding coefficient, and the FD decreased by 0.819 μm with every 1% increase in the inbreeding coefficient. Additionally, multiple comparison analysis indicated that when the inbreeding coefficient was higher than 6.25%, the LBW showed an obvious decreasing trend. The threshold value of inbreeding depression in the CY is 12.5%. However, inbreeding depression has not been observed in the FL and FD.Conclusion: Pedigree completeness needs to be further strengthened. The degree of inbreeding in this flock should be properly controlled when designing breeding programs.

Evaluation of water use of Caragana microphylla with the stem heat-balance method in Horqin Sandy Land, Inner Mongolia, China

2008 ◽  
Vol 148 (11) ◽  
pp. 1668-1678 ◽  
Author(s):  
Guangyang Yue ◽  
Halin Zhao ◽  
Tonghui Zhang ◽  
Xueyong Zhao ◽  
Li Niu ◽  
...  
Keyword(s):  
Water Use ◽  
Heat Balance ◽  
Inner Mongolia ◽  
Balance Method ◽  
Horqin Sandy Land ◽  
Sandy Land ◽  
Caragana Microphylla

An AFLP analysis of genetic diversity and structure of Caragana microphylla populations in Inner Mongolia steppe, China

2009 ◽  
Vol 37 (4) ◽  
pp. 395-401 ◽  
Author(s):  
Xu-hui Chen ◽  
Yu-bao Gao ◽  
Nian-xi Zhao ◽  
Ting-ting Zhao ◽  
Min-jie Zhu
Keyword(s):  
Genetic Diversity ◽  
Inner Mongolia ◽  
Aflp Analysis ◽  
Caragana Microphylla ◽  
Genetic Diversity And Structure

Response of Photosynthetic Characteristics of Caragana microphylla in Different Soil Phosphorus Supplies

2013 ◽  
Vol 726-731 ◽  
pp. 184-187
Author(s):  
Hui Gao ◽  
Ting Ting Zhao ◽  
Nian Xi Zhao ◽  
Yu Bao Gao
Keyword(s):  
Inner Mongolia ◽  
Soil Phosphorus ◽  
Light Response ◽  
Response Curves ◽  
Chlorophyll Fluorescence Parameters ◽  
P Deficiency ◽  
Soil P ◽  
Caragana Microphylla ◽  
Degraded Grassland ◽  
P Supply

Over the past several decades, grassland degradation has become severe in Inner Mongolia, leading to decreased grass coverage and increased distribution of Caragana microphylla. In order to find out new explanation for the expansion of C. microphylla in degraded grassland, we grew two-year seedlings in phosphorus (P) deficient soil supplemented with P supply ranging from 0 to 60 mg kg-1. The simulation parameters of light response curves and chlorophyll fluorescence parameters were all generally similar among different soil P supplies. Only maximum total photosynthetic rate (Pmax) and PSII potential activity (Fv/Fo) were reduced at 0 mg kg-1 soil supply, and high P supply caused P toxicity. C. microphylla was non-limited by P-deficiency and adapted well to the low-P Inner Mongolia steppe. The advantage of C. microphylla in P-limited natural grassland provided new explanation for the expanding of C. microphylla in degraded Inner Mongolia steppe.

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