萱草属种质资源多样性研究进展  

Research Progress on Diversity of Germplasm Resource in Hemerocallis

作　　者：任毅[1] 高亦珂[1] 朱琳[1] 张启翔[1] 

机构地区：[1]北京林业大学园林学院,北京100083

出　　处：《北方园艺》2016年第16期188-193,共6页Northern Horticulture

基　　金：北京市教育委员会科学研究与研究生培养共建资助项目(BLCXY201530);国家林业局948资助项目(2013-4-46)

摘　　要：世界14种萱草属植物有11种原产于中国,自然分布范围集中于东亚。萱草属资源分类学及群体分析,在形态学、细胞学、分子学、同工酶、孢粉学等方面体现了萱草属种质资源的多样性。结果表明:萱草属的遗传变异与地理位置、环境及居群间的遗传变化相关,萱草属可能起源于不同的家系,并且夜间开花的黄花菜被认为是进化类群。目前萱草属存在命名和分类混乱,种与变种区别不清,同一种在不同地域群体存在变异,存在天然杂交群体等分类和居群演化关系的问题,因此应在起源地中国进行全面而系统的种群调查研究。11 of 14 species in Hemerocallis native to China. Its natural range are concentrated in East Asia. Studies on resource classification and group analysis,reflect the diversity of germplasm resources in the genus HemerocaZlis in terms of morphology,cytology, molecular, isozyme, palynology. The results showed that genetic variation was associated with the location, environment and genetic variation among populations. Plants in Hemerocallis genus might have originated in different pedigrees and Citrina which bloom at night was considered to be evolutionary group. There are problems of classification and evolutionary relationships among populations, such as naming and classification confusion, unclear distinction between species and varieties, variation exists with different geographical groups ,natural hybrid populations in Hemerocallis. Therefore comprehensive and systematic investigation of the population should be studied in origin China.

关 键 词：萱草属 种质资源 多样性 系统进化 

分 类 号：S682.19[农业科学—观赏园艺]