Gene Diversity In Seed Crop Of Taurus Cedar (Cedrus Libani A. Rich.) Over An Altitudinal Range

Q2 Agricultural and Biological Sciences Geography, Environment, Sustainability Pub Date : 2024-01-12 DOI:10.24057/2071-9388-2023-2922
N. Yazici, T. P. Novikova, A. I. Novikov, N. Bilir
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Abstract

There could be many environmental and biological impacts such as edaphic, geographic, climatic, age, tree structure and population on morphological, physiological and genetically seed quality in plant species. Gene diversity is an important mirror of genetically seed quality. Gene diversity in seed crops were estimated based on female and male strobili productions of fifty trees (N) randomly chosen from each population sampled over an altitudinal range as low (1200-400 meters ≤ altitude), middle (1400 m < altitude ≤ 1600 m), high (1600 m < altitude ≤ 1800 m), and very high (1800 m < altitude) in Taurus cedar also known as cedar of Lebanon (Cedrus libani A. Rich.) for two consecutive years (2021&2022). The variation in strobilus production was subjected to estimation of female and male fertility variation. The total fertility variation (Ψ) was estimated from the female and male fertility variation. Impacts of some growth characteristics (tree height and diameter at breast height) on strobili productions were also investigated. Strobili productions varied among the populations and individuals within population, and between years. The differences for populations and years were also found for coefficient of variations which were mirror of fertility variation of the strobili productions. Tree height and diameter at breast height seemed more reasonable predictor than age for number of strobili. Fertility variations of female parents were generally higher than that of male in both years. First year showed generally higher parental variations in individual populations. Gene diversity (GD=1-0.5Ψ/N) ranged from 0.967 to 0.974 for the populations and years. The loss of highest gene diversity was 0.004 in low population (0.967 & 0.971) between years. Results of the study indicated that altitudinal gene diversity of seed crop could be used to produce genetically quality seed and their grading. Moreover, data sets can be used to fill the Forest Landscape Restoration library (FLR-Library).
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金牛星雪松(Cedrus Libani A. Rich.)
植物物种的形态、生理和种子遗传质量可能会受到许多环境和生物因素的影响,如土壤、地理、气候、树龄、树木结构和种群等。基因多样性是种子遗传质量的一面重要镜子。根据连续两年(2021 年和 2022 年)在低海拔(海拔 1200-400 米)、中海拔(海拔 1400 米≤海拔 1600 米)、高海拔(海拔 1600 米≤海拔 1800 米)和极高海拔(海拔 1800 米≤海拔)范围内采样的金牛雪松(又称黎巴嫩雪松)每个种群中随机抽取的 50 棵树(N)的雌性和雄性匍匐茎产量,估算了种子作物的基因多样性。对雌性和雄性生育力的变化进行了估计。根据雌性和雄性生育力变化估算出总生育力变化(Ψ)。还研究了一些生长特征(树高和胸径)对石蕊产量的影响。不同种群、种群内不同个体以及不同年份的石蕊产量各不相同。不同种群和不同年份的变异系数也存在差异,而变异系数是石蕊产量生育率变化的一面镜子。与树龄相比,树高和胸径似乎更能预测核果数。在这两年中,雌性亲本的生育力变异普遍高于雄性亲本。第一年个别种群的亲本变异普遍较高。不同种群和年份的基因多样性(GD=1-0.5Ψ/N)从 0.967 到 0.974 不等。不同年份之间,低种群最高基因多样性的损失为 0.004(0.967 和 0.971)。研究结果表明,种子作物的高度基因多样性可用于生产优质种子及其分级。此外,数据集还可用于填充森林景观恢复图书馆(FLR-Library)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Geography, Environment, Sustainability
Geography, Environment, Sustainability Social Sciences-Geography, Planning and Development
CiteScore
2.50
自引率
0.00%
发文量
37
审稿时长
12 weeks
期刊介绍: Journal “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” is founded by the Faculty of Geography of Lomonosov Moscow State University, The Russian Geographical Society and by the Institute of Geography of RAS. It is the official journal of Russian Geographical Society, and a fully open access journal. Journal “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” publishes original, innovative, interdisciplinary and timely research letter articles and concise reviews on studies of the Earth and its environment scientific field. This goal covers a broad spectrum of scientific research areas (physical-, social-, economic-, cultural geography, environmental sciences and sustainable development) and also considers contemporary and widely used research methods, such as geoinformatics, cartography, remote sensing (including from space), geophysics, geochemistry, etc. “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” is the only original English-language journal in the field of geography and environmental sciences published in Russia. It is supposed to be an outlet from the Russian-speaking countries to Europe and an inlet from Europe to the Russian-speaking countries regarding environmental and Earth sciences, geography and sustainability. The main sections of the journal are the theory of geography and ecology, the theory of sustainable development, use of natural resources, natural resources assessment, global and regional changes of environment and climate, social-economical geography, ecological regional planning, sustainable regional development, applied aspects of geography and ecology, geoinformatics and ecological cartography, ecological problems of oil and gas sector, nature conservations, health and environment, and education for sustainable development. Articles are freely available to both subscribers and the wider public with permitted reuse.
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