黑龙江省山杨倍性调查分析  

Survey and Analysis of Populus davidiana Ploidy in Heilongjiang Province

作　　者：王宇函 王鑫宇 徐祥宇 路美琪 梁雪莹 陈肃[1] 陈安琪 WANG Yuhan;WANG Xinyu;XU Xiangyu;LU Meiqi;LIANG Xueying;CHEN Su;CHEN Anqi(State Key Laboratory of Tree Genetics and Breeding,Northeast Forestry University,Harbin 150000,Heilongjiang;Science and Technology Cooperation Garden of China-Russia Forestry in Heihe,Heihe 164300,Heilongjiang)

机构地区：[1]东北林业大学林木遗传育种全国重点实验室,黑龙江哈尔滨150000 [2]黑河市中俄林业科技合作园区,黑龙江黑河164300

出　　处：《温带林业研究》2024年第3期17-21,共5页Journal of Temperate Forestry Research

基　　金：东北林业大学大学生创新项目(DC-2024224)。

摘　　要：【目的】多倍体具有器官巨大性和抗逆性强等特点,筛选多倍体一直是获得林木优良品种的方法之一。山杨生长速度快,是土壤改良、防风固沙工程上的重要树种。因此,调查不同分布区的山杨倍性,对筛选优良杨树多倍体具有指导意义。【方法】使用倍性分析仪和荧光原位杂交技术(FISH)对大兴安岭、伊春和牡丹江地区的山杨进行倍性分析。【结果】大兴安岭地区的31个山杨样品中存在6个三倍体植株。而伊春和牡丹江地区14和44个山杨样品均为二倍体植株。【结论】在大兴安岭地区存在天然的三倍体山杨。【Objective】Polyploidy is characterized by organ gigantism and strong resistance,and screening polyploidy has been one of the methods to obtain excellent varieties of forest trees.Populus davidiana has a fast growth rate and is an important species on soil improvement and windbreak and sand fixation control projects.Therefore,investigating the ploidy of Populus davidiana in different distribution areas is the guiding significance for screening excellent poplar polyploids.【Method】Ploidy analysis of poplars from Daxing’an Mountains,Yichun city and Mudanjiang city were carried out using the PA and fluorescence in situ hybridization(FISH).【Result】Six triploid plants were present in 31 poplar samples from Daxing’an Mountains.In contrast,14 and 44 poplar samples from Yichun city and Mudanjiang city were diploid plants.【Conclusion】Natural triploid Populus davidiana exists in Daxing’an Mountains.

关 键 词：山杨 三倍体 荧光原位杂交 倍性分析 

分 类 号：S792.11[农业科学—林木遗传育种]