广西林业科学2018，Vol.47Issue(2)：159-164,6.
闽楠不同种源叶片解剖性状的遗传多样性
Genetic Diversity of Anatomical Traits of Leaves in Different Provenances of Phoebe bournei
摘要
Abstract
The anatomical characteristics of annual seedling leaves of 15 Phoebe bournei provenances were observed by optical microscopy with the purpose to understand the genetic diversity and variation of leaves among different provenances. Results showed that there were significant differences among 12 traits of prove-nances, and there were no significant differences within provenances. The variation coefficients of leaf traits among different provenances were significantly different. The average variation coefficient of the lower epider-mis was the largest,and the average variation coefficient of stomatal density was the smallest. The average vari-ation coefficient of Fuzhou population in Fujian was the largest,and the average variation coefficient of Yongs-hun population in Hunan was the smallest. The variance components of leaf traits among provenances account-ed for 26.82%,and the variance components of leaf traits within the provenances accounted for 7.07%,and the average phenotypic differentiation coefficient among the provenances was 71.86%, which indicated that the variation among provenances of leaf traits of P. bournei was greater than that within provenances. The corre-lation analysis showed that longitude was the main environmental factor affecting the stomatal structure of P. bournei leaves,and elevation was the main environmental factor affecting the structure of mesophyll cells. The anatomical characteristics of P. bournei leaves showed abundant variation, and there was a broad prospect of genetic improvement.关键词
闽楠/种源/叶片解剖性状/遗传多样性Key words
Phoebe bournei/provenance/leaf anatomical characteristics/genetic diversity分类
农业科技引用本文复制引用
陈风帆,刘雄盛,蒋燚,王勇,梁瑞龙..闽楠不同种源叶片解剖性状的遗传多样性[J].广西林业科学,2018,47(2):159-164,6.基金项目
广西重点研发计划(桂科AB16380092) （桂科AB16380092）
广西林业科技项目(桂林科字[2015]第02号) （桂林科字[2015]第02号）
