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中国科学院昆明植物研究所知识管理系统
Knowledge Management System of Kunming Institute of Botany,CAS
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李德铢 [67]
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0.05) between wild (AR = 4.651), semi-cultivated (AR = 5.091) and cultivated (AR = 5.132) populations of C. taliensis, which suggested that the genetic background of long-lived woody plant was not easy to be changed, and there were moderate high gene flow between populations. However, there was a significant difference (P < 0.05) between wild (AR = 5.9) and cultivated (AR = 7.1) populations distributed in the same place in Yun county, Yunnan province, which may result from the hybridization and introgression of species in the tea garden and anthropogenic damages to the wild population. The hypothesis of hybrid origin of C. grandibracteata was tested by morphological and microsatellites analyses. Compared with other species, the locules in ovary of C. grandibracteata are variable, which showed a morphological intermediate and mosaic. Except one private allele, Ninety-nine percent alleles of C. grandibracteata were shared with these of C. taliensis and C. sinensis var. assamica. And C. grandibracteata was nested in the cluster of C. taliensis in the UPGMA tree. Conclusively, our results supported the hypothesis of hybrid origin of C. grandibracteata partly. The speciation of C. grandibracteata was derived from hybridization and asymmetrical introgression potentially. It is possible that C. taliensis was one of its parents, but it still needs more evidences to prove that C. sinensis var. assamica was another 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Scholarship Council","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&sort_by=2&isNonaffiliated=false&search_type=-1&query1=Structure%2BRevision&order=desc&&fq=dc.project.title_filter%3AChina%5C+Scholarship%5C+Council"},{"jsname":"Chinese Academy of Sciences Youth Innovation Promotion Association[2017435]","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&sort_by=2&isNonaffiliated=false&search_type=-1&query1=Structure%2BRevision&order=desc&&fq=dc.project.title_filter%3AChinese%5C+Academy%5C+of%5C+Sciences%5C+Youth%5C+Innovation%5C+Promotion%5C+Association%5C%5B2017435%5C%5D"},{"jsname":"Chinese Academy of Sciences[2013T2S003]","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&sort_by=2&isNonaffiliated=false&search_type=-1&query1=Structure%2BRevision&order=desc&&fq=dc.project.title_filter%3AChinese%5C+Academy%5C+of%5C+Sciences%5C%5B2013T2S003%5C%5D"},{"jsname":"Construction Program of Biology First-class Discipline in Guizhou[CINYL [2017] 009]","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&sort_by=2&isNonaffiliated=false&search_type=-1&query1=Structure%2BRevision&order=desc&&fq=dc.project.title_filter%3AConstruction%5C+Program%5C+of%5C+Biology%5C+First%5C-class%5C+Discipline%5C+in%5C+Guizhou%5C%5BCINYL%5C+%5C%5B2017%5C%5D%5C+009%5C%5D"},{"jsname":"Cycas micholitzii complex is composed of 5 species: C. micholitzii Dyer, C. bifida (Dyer) K. D. Hill,C. longipetiolula D. Y. Wang, C. debaoensis Y. C. Zhong et C J. Chen, C. multipinnata C J. Chen et S. Y. Yang，and distributed from southwest China to central Vietnam and eastern Laos. Based on sequence data from two maternally inherited cpDNA and one biparentally nuclear DNA fragments, our study revealed the population genetic structure of C. micholitzii complex and explored the potential causes. The evolutionary and demographic histories were investigated. The genetic relationship among species in the complex was also clarified.The results were summarized as follows: 1. Phylogeographic analysis based on chloroplast sequences，We examined chloroplast sequence variation of the atpB-rbcLand psbA-trnHintergenic spacers in 27 populations of C. micholitzii complex, recovering 26 haplotypes. The average within-population diversity (HS = 0.140) was low while total diversity (HT = 0.911) was high. Population differentiation was also high(GST = 0.846, NST = 0.919), indicating significant phylogeographical structure (NST > GST,p < 0.001) and low levels of seed-based gene flow. C. debaoensis (Cycadaceae) is an endangered species restricted to the border of Guangxi and Yunnan province in southwest China. This species has been classified into two types: sand and karst, according to the soil matrix they grow on. We examined chloroplast sequence variation of the cpDNA sequences from 11 populations of this species. Significant population genetic differentiation was detected (GST= 0.684 and FST = 0.74160). There was marked genetic differentiation between populations in the sand and karst regions and no expansion was detected. Climate changes during glacial periods have had significant effects on the current distribution of cycads. The molecular phylogenetic data, together with the geographic distribution of the haplotypes, suggest that C. debaoensis experienced range contraction during glacial periods, and that the current populations are still confined to the original refugia in southwest China which have favorable habitats in glacial period. These results imply that small refugia were maintained in both sand and karst regions during the LGM (last glacial maximum). This species had no postglacial recolonization and only stayed in these refugia up to now. The low within-population diversity of C. debaoensis suggests that there were strong bottleneck events or founder effects within each separate region during the Quaternary climatic oscillations. Relatively high genetic and haplotype diversities were detected in the newly discovered populations, which located at intermediate locality of sand regions and had morphological variation; this is probably the consequence of the admixture of different haplotypes colonizing the area from separate sources. C. micholitzii occurs in the Annan Highlands in central Vietnam near the Laos border. C. bifida occurs in North Vietnam; its distribution extends across the border into adjacent localities in Guangxi and Yunnan in China. For the comparability between them,theywere considered as the same species C. micholitzii by many academicians. The cpDNA sequences from 11 populations showed that these very controversial species, C. micholitzii and C. bifida, is paraphyletic and should belong to the same species C. micholitzii. AMOVA analysis showed that the component of among-population within region/species (76.46%) was unexpectedly larger than the among-species/region component (14.97%), which also indicates that there is no justification for recognizing two species as C. micholitzii and C. bifida. This hypothesis was also supported by the geological data, especially the neotectonic history of the indo-china block, which started to move south since Oligocene and cause the geographic isolation of these two groups. Therefore, the most likely explanation to the phenotypic similarities between these two groups may be the retention of ancestral polymorphisms in the paraphyletic group due to incomplete lineage sorting. Furthermore, the similarities may also be ascribed to pollen-mediated gene flow among geographically proximate populations and/or phenotypic convergence under similar selection schemes in the same region. C.micholitzi had the higest genetic diversity (HT = 0.980,) and genetic differentiation (GST = 0.830, NST = 0.915) among the C. micholitzii complex. The high genetic diversity might be attributed to its long evolutionary history, highly diverse habitats. The ineffective mode of seed dispersal and dramatic neotectonic movement in the distribution range of this species could result in the high genetic differentiation. 2. Phylogeographic analysis based on nuclear ribosomal sequences, We sequenced the nrDNA ITS in all 27 populations sampled, 7 haplotypes were identified, among which C. micholitzii had 6, while C. multipinnata, C. longipetiolula and C. debaoensis shared the remaining one. Compared to chloroplast genes, nuclear genes had higher correlation between genetic and geographical distance, but lower interspecies differentiation (54.42% vs 25.24%). Phylogeographical structure of C. micholitzii and C.bifida based on ITS Variation was consistent with the morphology differentiation. This similar in nuclear gene should be ascribed to pollen-mediated gene flow among geographically proximate populations.Long-distance gene flow over the two groups was clearly interrupted, which brought on the nrDNA genetic differenciation between the geographically isolated groups, to a certain extent affected the morphological variation. 3. Interspecies relationships among Cycas micholitzii complex, We analysed chloroplast sequence variation of the atpB-rbcL and psbA-trnH intergenic spacers in 27 populations sampled of C. micholitzii complex, AMOVA analysis showed that the component of among-species/region component (59.21%). However, phylogenic analysis showed that the haplotypes of C. micholitzii complex couldn`t grouped into four clusters closely corresponding to the narrowly defined C. micholitzi, C. multipinnata, C. debaoensis and C. longipetiolula. We concluded that the conflict may result from several factors: firstly incomplete lineage sorting of C. micholitzii; secondly hybridization/introgression of sympatrically cycads, which would be supported by evidence base on nrDNA ITS sequences; thirdly intramolecular recombination in cpDNA of cycads; eventually the neotectonic movement in the distribution range of this 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Systematics and Biogeography of Aralia L. (Araliaceae):Revision of Aralia Sects. Aralia, Humiles, Nanae, andSciadodendron
期刊论文
出版物, 3111, 卷号: 57, 期号: 0, 页码: 1-172
Authors:
Jun Wen
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Submit date：2017/07/24
Aralia
Aralia Sect. Aralia
Aralia Sect. Dimorphanthus
Aralia Sect. Humiles
Aralia Sect. Nanae
Aralia Sect. pentapanax
Aralia Sect. Sciadodendron
Biogeography
Araliaceae
Systematics
How to Prepare a Manuscript for International Journal
期刊论文
出版物, 3111, 页码: 1-46
Authors:
Zuo Z(作者)
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Submit date：2017/07/19
Elaborate Petals in Australian Spermacoce (Rubiaceae) Species:Morphology, Ontogeny and Function
期刊论文
Annals of Botany, 3111, 页码: 1—12
Authors:
Antonello Mai
;
Marino Artico
;
Gianluca Sbardella
;
Silvio Massa
;
Ettore Novellino
;
Giovanni Greco
;
Anna Giulia Loi
;
Enzo Tramontano
;
Maria Elena Marongiu
;
Paolo La Colla
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Submit date：2017/07/19
POLYMORPHISM OF MICROSATELLITESEQUENCE WITHIN PROTEIN KINASE ORFSIN PHYTOPATHOGENIC FUNGUS,MAGNAPORTHE GRISEA
期刊论文
出版物, 3111, 期号: 0, 页码: 559-563
Authors:
Chengyun Li
;
Lin Liu
;
Jing Yang
;
Jinbin Li
;
Zhang Yue
;
Yunyue Wang
;
Yong Xie
;
Youyong Zhu
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Submit date：2017/07/21
Data Analysisin Vegetation Ecology
期刊论文
出版物, 3111, 期号: 0, 页码: 1-297
Authors:
Otto Wildi
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Submit date：2017/07/24
Alkaloids from flowers of Erythrina corallodendron
期刊论文
NATURAL PRODUCT RESEARCH, 2019, 卷号: 33, 期号: 9, 页码: 1298-1303
Authors:
Zhao, Hao-En
;
Wu, Jing
;
Xu, Feng-Qing
;
Bao, Mei-Fen
;
Jin, Chuan-Shan
;
Cai, Xiang-Hai
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Submit date：2019/03/25
Erythrina corallodendron
10-oxo-erythrinine
erythrinine N-oxide
Erythrina alkaloid
Structural Revision of Macropodumine A and Structure of 2-Deoxymacropodumine A, Daphniphyllum Alkaloids with 11-Membered Macrolactone Rings
期刊论文
JOURNAL OF NATURAL PRODUCTS, 2019, 卷号: 82, 期号: 3, 页码: 427-430
Authors:
Zhang, Jiahui
;
Cao, Pei
;
Ma, Yuanliang
;
Fang, Xin
;
Yang, Jing
;
Zhang, Yu
;
Chen, Duozhi
;
Gu, Yucheng
;
Di, Yingtong
;
Hao, Xiaojiang
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Submit date：2019/07/29
Prevalence of isomeric plastomes and effectiveness of plastome super-barcodes in yews (Taxus) worldwide
期刊论文
SCIENTIFIC REPORTS, 2019, 卷号: 9, 页码: 11
Authors:
Fu, Chao-Nan
;
Wu, Chung-Shien
;
Ye, Lin-Jiang
;
Mo, Zhi-Qiong
;
Liu, Jie
;
Chang, Yu-Wen
;
Li, De-Zhu
;
Chaw, Shu-Miaw
;
Gao, Lian-Ming
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Submit date：2019/03/25
A neglected alliance in battles against parasitic plants: arbuscular mycorrhizal and rhizobial symbioses alleviate damage to a legume host by root hemiparasitic Pedicularis species
期刊论文
NEW PHYTOLOGIST, 2019, 卷号: 221, 期号: 1, 页码: 470-481
Authors:
Sui, Xiao-Lin
;
Zhang, Ting
;
Tian, Yu-Qing
;
Xue, Rui-Juan
;
Li, Ai-Rong
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Submit date：2019/01/22
Arbuscular Mycorrhizal (Am) Fungi
Dual Inoculation
Legume Host
Multi-species Interaction
Nutritional Symbioses
Pedicularis
Rhizobia
Root Hemiparasitic Plant
Miscellaneous notes on Begonia medogensis (Begoniaceae)
期刊论文
PHYTOTAXA, 2018, 卷号: 381, 期号: 1, 页码: 100-106
Authors:
Chen, Wen-Hong
;
Tian, Dai-Ke
;
Radbouchoom, Sirilak
;
Xiao, Yan
;
Cong, Yi-Yan
;
Guo, Shi-Wei
;
Shui, Yu-Min
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Submit date：2018/12/27
Begonia sect. Platycentrum
China
Medog county
Misidentification
Supplementary description
Tibet
