典型文献
Ceratopteris chunii and Ceratopteris chingii(Pteridaceae),two new diploid species from China,based on morphological,cytological,and molecular data
文献摘要：
Understanding how natural hybridization and polyploidizations originate in plants requires identi-fying potential diploid ancestors.However,cryptic plant species are widespread,particularly in Ceratopteris(Pteridaceae).Identifying Ceratopteris cryptic species with different polyploidy levels is a challenge because Ceratopteris spp.exhibit high degrees of phenotypic plasticity.Here,two new cryptic species of Ceratopteris,Ceratopteris chunii and Ceratopteris chingii,are described and illus-trated.Phylogenetic analyses reveal that each of the new species form a well-supported clade.C.chunii and C.chingii are similar to Ceratopteris gaudichaudii var.vulgaris and C.pteridoides,respectively,but distinct from their relatives in the stipe,basal pinna of the sterile leaf or subelliptic shape of the fertile leaf,as well as the spore surface.In addition,chromosome studies indicate that C.chunii and C.chingii are both diploid.These findings will help us further understand the origin of Ceratopteris polyploids in Asia.
文献关键词：
中图分类号：
作者姓名：
Jun-Hao Yu;Rui Zhang;Qiao-Ling Liu;Fa-Guo Wang;Xun-Lin Yu;Xi-Ling Dai;Yong-Bo Liu;Yue-Hong Yan
作者机构：
Eastern China Conservation Centre for Wild Endangered Plant Resources,Shanghai Chenshan Botanical Garden,Shanghai 201602,China;College of Life Science,Shanghai Normal University,Shanghai,200234,China;Guangdong Provincial Key Laboratory of Applied Botany,South China Botanical Garden,Chinese Academy of Sciences,Guangzhou,510650,China;College of Forestry,Central South University of Forestry&Technology,Changsha,Hunan,410004,China;State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment,Chinese Research Academy of Environmental Sciences,Beijing,100012,China;Shenzhen Key Laboratory for Orchid Conservation and Utilization,National Orchid Conservation Center of China and the Orchid Conservation&Research Center of Shenzhen,Shenzhen,518114,China
文献出处：
引用格式：
[1]Jun-Hao Yu;Rui Zhang;Qiao-Ling Liu;Fa-Guo Wang;Xun-Lin Yu;Xi-Ling Dai;Yong-Bo Liu;Yue-Hong Yan-.Ceratopteris chunii and Ceratopteris chingii(Pteridaceae),two new diploid species from China,based on morphological,cytological,and molecular data)[J].植物多样性（英文）,2022(03):300-307
A类：
polyploidizations,fying,gaudichaudii,pteridoides,stipe,pinna,subelliptic,polyploids
B类：
Ceratopteris,chunii,chingii,Pteridaceae,two,new,diploid,species,from,China,morphological,cytological,molecular,data,Understanding,how,natural,hybridization,originate,plants,requires,identi,potential,ancestors,However,cryptic,are,widespread,particularly,Identifying,different,polyploidy,levels,challenge,because,spp,exhibit,high,degrees,phenotypic,plasticity,Here,described,illus,trated,Phylogenetic,analyses,reveal,that,each,form,well,supported,clade,similar,var,vulgaris,respectively,but,distinct,their,relatives,basal,sterile,leaf,shape,fertile,spore,surface,In,addition,chromosome,studies,indicate,both,These,findings,will,help,further,understand,Asia
AB值：
0.521515
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