Geographical variation and the role of climate and soil on phenotypic traits of Calamus rhabdocladus across provenances in China.

IF 4.3 2区 生物学 Q1 PLANT SCIENCES
Junqing Nong, Ruijing Xu, Songpo Wei, Shaohui Fan, Quan Qiu, Yiju Li, Guanglu Liu
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Abstract

Background: Phenotypic traits are indicative of a plant's resource utilization and survival strategies. Understanding the geographical differentiation of Calamus rhabdocladus phenotypes holds significant theoretical and practical value for genetic breeding and the selection of superior geographical provenances. This study analyzed the geographic variation in 15 phenotypic traits of leaves, stems, roots, flagellums, and other parts from 10 provenances of C. rhabdocladus in China. The phenotypic characters of C. rhabdocladus were measured in the field, while soil factors were collected in the field and analyzed in the laboratory. Climatic data were obtained through online sources. Pearson's correlation was used to analyze the relationships between the 15 phenotypic traits. Redundancy analysis and variance decomposition analysis were used to quantify the effects of climatic and soil factors on the geographical variation in phenotypic traits of C. rhabdocladus, and the key influencing factors were obtained by comparing the explanatory rates of soil and climatic factors on phenotypic traits of C. rhabdocladus.

Results: The results showed that the Coefficient of variation (CV) of phenotypic traits among provenances ranges from 7.48 to 182.16%, with root dry weight exhibiting the largest variation. The plasticity indices varied between 0.16 and 0.82, with the flagellum volume showing the highest value. Significant correlations were observed among leaf, stem, flagellum, and root traits. Average air temperature was identified as the crucial climatic factor influencing the phenotypic traits of C. rhabdocladus, while effective nitrogen and organic matter content were the key soil factors influencing these traits. Within the scope of this study, climatic factors provided a better explanation of phenotype variation than soil factors.

Conclusions: These results highlight the importance of climatic adaptation in shaping phenotypic diversity and suggest that future research should explore the genetic mechanisms underlying these traits and their interactions with environmental factors at finer spatial scales.

中国菖蒲不同产地的地理差异以及气候和土壤对其表型特征的影响。
背景:表型特征表明了植物的资源利用和生存策略。了解菖蒲表型的地理分布差异对遗传育种和选择优良地理产地具有重要的理论和实践价值。本研究分析了中国石菖蒲10个产地的叶、茎、根、鞭毛等15个表型性状的地理差异。表型特征在田间测量,土壤因子在田间采集并在实验室分析。气候数据从网上获取。采用皮尔逊相关分析 15 个表型特征之间的关系。利用冗余分析和方差分解分析量化气候和土壤因子对鼠李表型性状地理变异的影响,并通过比较土壤和气候因子对鼠李表型性状的解释率得出关键影响因子:结果表明,不同产地表型性状的变异系数(CV)在 7.48% 到 182.16% 之间,其中根干重的变异最大。可塑性指数介于 0.16 和 0.82 之间,其中鞭毛体积的可塑性指数最高。叶、茎、鞭毛和根的性状之间存在显著的相关性。平均气温被认为是影响 C. rhabdocladus 表型特征的关键气候因子,而有效氮和有机质含量则是影响这些特征的关键土壤因子。在本研究范围内,气候因素比土壤因素更能解释表型的变化:这些结果凸显了气候适应在形成表型多样性方面的重要性,并建议未来的研究应探索这些性状的遗传机制及其与环境因素在更精细的空间尺度上的相互作用。
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来源期刊
BMC Plant Biology
BMC Plant Biology 生物-植物科学
CiteScore
8.40
自引率
3.80%
发文量
539
审稿时长
3.8 months
期刊介绍: BMC Plant Biology is an open access, peer-reviewed journal that considers articles on all aspects of plant biology, including molecular, cellular, tissue, organ and whole organism research.
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