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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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共享文献 [134]
中国科学院东亚植... [105]
昆明植物所硕博研究... [74]
资源植物与生物技术... [40]
中国西南野生生物种质... [9]
管理部门 [8]
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许建初 [25]
Sun Hang [23]
李德铢 [19]
周浙昆 [15]
杨祝良 [10]
伊廷双 [6]
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PLOS ONE [11]
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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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Frontier Sciences of the Chinese Academy of Sciences[QYZDY-SSW-SMC014]","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&sort_by=2&isNonaffiliated=false&search_type=-1&query1=African%2BClimate&order=desc&&fq=dc.project.title_filter%3AKey%5C+Research%5C+Program%5C+of%5C+Frontier%5C+Sciences%5C+of%5C+the%5C+Chinese%5C+Academy%5C+of%5C+Sciences%5C%5BQYZDY%5C-SSW%5C-SMC014%5C%5D"},{"jsname":"Keynote Projects of the National Natural Science Foundation of China[40830209]","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&sort_by=2&isNonaffiliated=false&search_type=-1&query1=African%2BClimate&order=desc&&fq=dc.project.title_filter%3AKeynote%5C+Projects%5C+of%5C+the%5C+National%5C+Natural%5C+Science%5C+Foundation%5C+of%5C+China%5C%5B40830209%5C%5D"},{"jsname":"lastIndexed","jscount":"2020-01-25"}],"Funding Project","dc.project.title_filter")'>
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JATROPHA CURCAS L.AN INTERNATIONAL BOTANICAL ANSWER TOBIODIESEL PRODUCTION & RENEWABLE ENERGY
期刊论文
出版物, 3111, 期号: 0, 页码: 1—65
Authors:
Zuo Z(作者)
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Submit date：2017/07/24
Phylogeny, biogeography and taxonomic re-assessment of Multifurca (Russulaceae, Russulales) using three-locus data
期刊论文
PLOS ONE, 2018, 卷号: 13, 期号: 11, 页码: 33
Authors:
Wang, Xiang-Hua
;
Hailing, Roy E.
;
Hofstetter, Valerie
;
Lebel, Teresa
;
Buyck, Bart
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View/Download：192/5
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Submit date：2018/12/18
EVOLUTION OF ANGIOSPERM POLLEN. 6. THE CELASTRALES, OXALIDALES, AND MALPIGHIALES (COM) GLADE AND ZYGOPHYLLALES
期刊论文
ANNALS OF THE MISSOURI BOTANICAL GARDEN, 2018, 卷号: 103, 期号: 3, 页码: 393-442
Authors:
Tao, Zhi-Bin
;
Wortley, Alexandra H.
;
Lu, Lu
;
Li, De-Zhu
;
Wang, Hong
;
Blackmore, Stephen
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View/Download：120/13
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Submit date：2019/03/18
Celastrales
Character State Distribution
Correlated Evolution
Fabids
Malpighiales
Oxalidales
Pollen Morphology
Pollination Syndrome
Systematic Significance
Zygophyllales
Isotopic evidence for oligotrophication of terrestrial ecosystems
期刊论文
NATURE ECOLOGY & EVOLUTION, 2018, 卷号: 2, 期号: 11, 页码: 1735-1744
Authors:
Craine, Joseph M.
;
Elmore, Andrew J.
;
Wang, Lixin
;
Aranibar, Julieta
;
Bauters, Marijn
;
Boeckx, Pascal
;
Crowley, Brooke E.
;
Dawes, Melissa A.
;
Delzon, Sylvain
;
Fajardo, Alex
;
Fang, Yunting
;
Fujiyoshi, Lei
;
Gray, Alan
;
Guerrieri, Rossella
;
Gundale, Michael J.
;
Hawke, David J.
;
Hietz, Peter
;
Jonard, Mathieu
;
Kearsley, Elizabeth
;
Kenzo, Tanaka
;
Makarov, Mikhail
;
Maranon-Jimenez, Sara
;
McGlynn, Terrence P.
;
McNeil, Brenden E.
;
Mosher, Stella G.
;
Nelson, David M.
;
Peri, Pablo L.
;
Roggy, Jean Christophe
;
Sanders-DeMott, Rebecca
;
Song, Minghua
;
Szpak, Paul
;
Templer, Pamela H.
;
Van der Colff, Dewidine
;
Werner, Christiane
;
Xu, Xingliang
;
Yang, Yang
;
Yu, Guirui
;
Zmudczynska-Skarbek, Katarzyna
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Submit date：2018/12/03
The cover uncovered: Bark control over wood decomposition
期刊论文
JOURNAL OF ECOLOGY, 2018, 卷号: 106, 期号: 6, 页码: 2147-2160
Authors:
Dossa, Gbadamassi G. O.
;
Schaefer, Douglas
;
Zhang, Jiao-Lin
;
Tao, Jian-Ping
;
Cao, Kun-Fang
;
Corlett, Richard T.
;
Cunningham, Anthony B.
;
Xu, Jian-Chu
;
Cornelissen, Johannes H. C.
;
Harrison, Rhett D.
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View/Download：317/6
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Submit date：2018/11/12
Arthropod
Bark Traits
Carbon Cycling
Coarse Woody Debris
Decomposition
Ecosystem Function
Fungi
Species Identity Effect
中国植物学会八十五周年学术年会论文集摘要汇编
会议录
Editors:
植物学会
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Submit date：2018/10/24
Integrating a comprehensive DNA barcode reference library with a global map of yews (Taxus L.) for forensic identification
期刊论文
MOLECULAR ECOLOGY RESOURCES, 2018, 卷号: 18, 期号: 5, 页码: 1115-1131
Authors:
Liu, Jie
;
Milne, Richard I.
;
Moller, Michael
;
Zhu, Guang-Fu
;
Ye, Lin-Jiang
;
Luo, Ya-Huang
;
Yang, Jun-Bo
;
Wambulwa, Moses C.
;
Wang, Chun-Neng
;
Li, De-Zhu
;
Gao, Lian-Ming
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Submit date：2018/09/27
Comprehensive Sampling
Dna Barcoding
Forensic Identification
Geographical Origin
Sampling Strategy
Species Distribution Modelling
First fossils of Zygogynum from the Middle Miocene of Central Yunnan, Southwest China, and their palaeobiogeographic significance
期刊论文
PALAEOWORLD, 2018, 卷号: 27, 期号: 3, 页码: 399-409
Authors:
Liang, Xiao-Qing
;
Lu, Ping
;
Zhang, Jian-Wei
;
Su, Tao
;
Zhou, Zhe-Kun
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View/Download：41/2
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Submit date：2018/10/04
Gondwana
Leaf Fossil
Middle Miocene
Palaeobiogeography
Southwest China
Zygogynum
Effectiveness of protected areas in preventing rubber expansion and deforestation in Xishuangbanna, Southwest China
期刊论文
LAND DEGRADATION & DEVELOPMENT, 2018, 卷号: 29, 期号: 8, 页码: 2417-2427
Authors:
Sarathchandra, Chaya
;
Dossa, Gbadamassi G. O.
;
Ranjitkar, Niranjan Bhakta
;
Chen, Huafang
;
Deli, Zhai
;
Ranjitkar, Sailesh
;
de Silva, Kaluwa Handi Wasana Lalanthi
;
Wickramasinghe, Sriyani
;
Xu, Jianchu
;
Harrison, Rhett D.
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View/Download：390/63
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Submit date：2018/10/07
Deforestation
Land Use Land Cover
Low Land Rainforest
Protected Areas
Rubber Monoculture
Xishuangbanna
无权访问的条目
演示报告
Authors:
DAVID KIMUTAI MELLY
Microsoft Powerpoint(11698Kb)
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Submit date：2019/05/24
