文献类型：期刊文献

中文题名：华北地区不同地理种源栓皮栎果实性状多样性

英文题名：Diversity of fruit traits of Quercus variabilis from different geographic provenances in north China

作者：丁欢欢[1] 朱景乐[2,3] 崔兴勇[4] 尚策[1] 曲红[1] 张志翔[1]

第一作者：丁欢欢

机构：[1]北京林业大学,北京100083;[2]中国林业科学研究院经济林研究所,河南郑州450003;[3]经济林种质创新与利用国家林业局重点实验室,河南郑州450003;[4]中国科学院华南植物园,广东广州510650

年份：2026

卷号：46

期号：2

起止页码：42-53

中文期刊名：中南林业科技大学学报

外文期刊名：Journal of Central South University of Forestry & Technology

收录：;北大核心:【北大核心2023】；

基金：河南省重点研发专项(241111113300);国家自然科学基金项目(42071065);河南省科技兴林项目(YLLK202508)。

语种：中文

中文关键词：栓皮栎;表型性状;营养成分;变异系数;地理气候因子

外文关键词：Quercus variabilis;phenotypic traits;nutritional components;coefficient of variation;geographical and climatic factors

分类号：S722.5

摘要：【目的】通过分析不同种源栓皮栎果实表型性状差异,探究其地理变异规律及其地理气候驱动因子。【方法】以华北地区27个栓皮栎种源的果实为对象,采用方差分析、聚类分析、相关性分析和主成分分析等方法进行研究。【结果】栓皮栎果实表型性状的变异集中表现在果实质量和大小、果实皮层厚度、果实形状、淀粉和直链淀粉含量等方面。果实形态性状中,鲜质量变异系数均值最大(29.62%),纵径最小(9.79%);营养成分中,可溶性糖含量变异系数均值最高(22.13%),淀粉含量最小(3.88%)。聚类分析将栓皮栎27个种源分为5个类群,类群I的直链淀粉含量最高,而果实质量和淀粉含量仅次于类群V,其中,采自类群V的山东新泰市的果实最重。河南淅川县的果壳最厚、直链淀粉含量低。淀粉含量和直链淀粉含量与果实质量和大小呈显著正相关。果实外壳厚度与直链淀粉和可溶性糖含量呈显著负相关。果实质量和大小与降水量、经度和海拔呈显著负相关。果实形状和皮壳厚度与高温潮湿季的温度呈显著正相关,与等效纬度呈显著负相关。淀粉含量和直链淀粉含量与等效纬度呈显著正相关,而与可溶性糖含量呈显著负相关;淀粉含量和直链淀粉含量与2021年最冷季度的降水量呈显著负相关,而与可溶性糖含量呈显著正相关。淀粉含量还与2022年降水季节性呈显著正相关,与季度降水量和均温呈显著负相关。【结论】栓皮栎果实性状变异在种源间差异显著,类群I表现出突出的果用优势;类群V在饲料用途方面具有明显优势;可溶性糖含量和直链淀粉含量均与果实外壳厚度呈显著负相关,可溶性糖还与果实内皮厚度呈显著负相关;果实质量和大小主要受与经度、降水量和海拔影响,果实皮壳厚度主要受温度和纬度影响,这两类性状的地理气候驱动存在差异。
【Objective】This study investigated the geographical variation patterns and climatic drivers of fruit phenotypic traits in Quercus variabilis across different provenances.【Method】The fruits of 27 Q.variabilis provenances distributed in north China were systematically analyzed by means of variance analysis,cluster analysis,correlation analysis and principal component analysis.【Result】The variation in fruit phenotypic traits of Quercus variabilis was predominantly manifested in fruit weight and size,nutshell thickness,fruit shape,as well as starch content and amylose content.Among the morphological traits,the fresh weight exhibited the highest mean coefficient of variation(CV)of 29.62%,while the fruit length showed the smallest CV of 9.79%.Regarding nutritional components,soluble sugar content had the highest mean CV of 22.13%,whereas starch content had the lowest CV of 3.88%.Cluster analysis classified 27 provenances of Q.variabilis into five clusters.The amylose content in group I was the highest,while the fruit weight and starch content were second only to those in group V.Among these,the heaviest fruits were found in group V from Xintai City,Shandong Province.The thickest fruit nutshells were from Xichuan County,Henan Province,while their amylose content was low.Starch and amylose content showed a significant positive correlation with fruit weight and size.Nutshell thickness was significant negatively correlated with amylose and soluble sugar content.Precipitation,longitude,and altitude were significant negatively correlated with fruit weight and size.Fruit shape and nutshell thickness were significant positively correlated with temperature during hot and humid season while negatively correlated with equivalent latitude.Starch and amylose content was significant positively correlated with equivalent latitude,while soluble sugar content showed a negative correlation with it.Interestingly,starch content and amylose content exhibited significant negative correlations with precipitation during the coldest quarter of 2021,while showing significant positive correlations with soluble sugar content.Additionally,starch content was significant positively correlated with precipitation seasonality of 2022 but negatively correlated with quarterly precipitation and mean temperature.【Conclusion】The variation in fruit traits of Q.variabilis showed significant differences among provenances.Group I exhibited prominent advantages for fruit utilization,while Group V demonstrated distinct superiority for forage purposes.Both soluble sugar content and amylose content showed significant negative correlations with fruit shell thickness.Soluble sugar content also exhibited a significant negative correlation with endocarp thickness.Fruit weight and size were predominantly influenced by longitude,precipitation,and altitude,whereas nutshell thickness was mainly governed by temperature and latitude,indicating distinct geoclimatic drivers between these two trait categories.