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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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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
作者:
Jun Wen
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浏览/下载：276/7
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提交时间：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
A Global Indicator for Biological Invasion
期刊论文
Conservation Biology, 3111, 卷号: 20, 页码: 1635–1646
作者:
Eugene M McCarthy
;
Jingdong Liu
;
Gao Lizhi
;
John F McDonald
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浏览/下载：181/4
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提交时间：2017/07/19
Patterns of species richness and turnover in endemic amphibians of the Guineo-Congolian rain forest
期刊论文
DIVERSITY AND DISTRIBUTIONS, 2023
作者:
Nneji,Lotanna M.
;
Azevedo,Josue A. R.
;
Oyebanji,Oyetola O.
;
Ma,Liang
;
Elsen,Paul R.
;
Oladipo,Segun O.
;
Salako,Gabriel
;
Puschendorf,Robert
;
Pringle,Robert M.
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浏览/下载：3/1
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提交时间：2024/07/10
Africa
amphibians
endemic species richness
generalized dissimilarity modelling
species distribution models
beta-diversity
BETA-DIVERSITY
GLOBAL PATTERNS
ENVIRONMENTAL DETERMINANTS
BIOGEOGRAPHICAL REGIONS
LATITUDINAL GRADIENT
GEOGRAPHIC PATTERNS
OCCURRENCE RECORDS
HABITAT SELECTION
SPATIAL TURNOVER
CLIMATE-CHANGE
Splitting one species into 22: an unusual tripling of molecular, morphological, and geographical differentiation in the fern family Didymochlaenaceae (Polypodiales)
期刊论文
CLADISTICS, 2023, 卷号: 39, 期号: 4, 页码: 273-292
作者:
Shang,Hui
;
Xue,Zhi-Qing
;
Liang,Zhen-Long
;
Kessler,Michael
;
Pollawatn,Rossarin
;
Lu,Ngan Thi
;
Gu,Yu-Feng
;
Fan,Xue-Ping
;
Tan,Yun-Hong
;
Zhang,Liang
;
Zhou,Xin-Mao
;
Wan,Xia
;
Zhang,Li-Bing
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浏览/下载：1/1
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提交时间：2024/07/22
PHYLOGENETIC ANALYSIS
DEEP RELATIONSHIPS
RAPID RADIATION
EVOLUTION
GENUS
CLASSIFICATION
BIOGEOGRAPHY
HISTORY
DIVERSIFICATION
PARSIMONY
East Asian-North American disjunctions and phylogenetic relationships within subtribe Nepetinae (Lamiaceae)
期刊论文
MOLECULAR PHYLOGENETICS AND EVOLUTION, 2023, 卷号: 187, 页码: 107873
作者:
Rose,Jeffrey P.
;
Wiese,Joshua
;
Pauley,Nicole
;
Dirmenci,Tuncay
;
Celep,Ferhat
;
Xiang,Chun-Lei
;
Drew,Bryan T.
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提交时间：2024/07/25
Acrto-Teritary Flora
Disjunction
Lamiaceae
Nepetinae
Vicariance
BERING LAND-BRIDGE
TRIBE MENTHEAE
MOLECULAR PHYLOGENETICS
LEPECHINIA LAMIACEAE
STAMINAL EVOLUTION
NONCODING REGIONS
VASCULAR PLANTS
CLASSIFICATION
GENUS
BIOGEOGRAPHY
A global phylogeny of Lycopodiaceae (Lycopodiales; lycophytes) with the description of a new genus, Brownseya, from Oceania
期刊论文
TAXON, 2022, 卷号: 71, 期号: 1, 页码: 25-51
作者:
Chen,De-Kui
;
Zhou,Xin-Mao
;
Rothfels,Carl J.
;
Shepherd,Lara D.
;
Knapp,Ralf
;
Zhang,Liang
;
Lu,Ngan Thi
;
Fan,Xue-Ping
;
Wan,Xia
;
Gao,Xin-Fen
;
He,Hai
;
Zhang,Li-Bing
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浏览/下载：200/9
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提交时间：2022/04/02
Huperzia
Lycophyte Phylogeny
Lycopodiella Serpentina
Phlegmariurus
Phylloglossum
Vascular Plant Evolution
Complete Chloroplast Genome
Lycopodiopsida Lycopodiaceae
Generic Classification
Spore Morphology
Early Evolution
Land Plants
Rbcl Gene
Huperzia
Sequence
Likelihood
A Dated Phylogeny of the Pantropical Genus Dalbergia L.f. (Leguminosae: Papilionoideae) and Its Implications for Historical Biogeography
期刊论文
AGRONOMY-BASEL, 2022, 卷号: 12, 期号: 7, 页码: 1612
作者:
Rahaingoson, Fabien Robert
;
Oyebanji, Oyetola
;
Stull, Gregory W.
;
Zhang, Rong
;
Yi, Ting-Shuang
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浏览/下载：36/4
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提交时间：2024/04/30
Dalbergia
Early Miocene
ITS
long-distance dispersal
matK
monophyletic
rbcL
MOLECULAR PHYLOGENY
TROPICAL FLORAS
DISPERSAL
EVOLUTION
FABACEAE
MADAGASCAR
NUCLEAR
ORIGIN
DIVERSIFICATION
VICARIANCE
Phylogenetic relationship, biogeography, and conservation genetics of endangered Fraxinus chiisanensis (Oleaceae), endemic to South Korea
期刊论文
PLANT DIVERSITY, 2022, 卷号: 44, 期号: 2, 页码: 170-180
作者:
Kim, Changkyun
;
Kim, Dong-Kap
;
Sun, Hang
;
Kim, Joo-Hwan
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浏览/下载：19/8
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提交时间：2024/04/30
East China Sea land bridge
Endemic species
Fraxinus chiisanensis
Korean Peninsula
Genetic diversity
Biogeography
CHLOROPLAST DNA
MOLECULAR PHYLOGEOGRAPHY
GLACIAL REFUGIUM
POPULATION-SIZE
NORTH-AMERICA
HYDRANGEACEAE
DIVERSITY
EVOLUTION
HISTORY
NUCLEAR
Biogeographical divides delineated by the three-step landforms of China and the East China Sea: Insights from the phylogeography of Kerria japonica
期刊论文
JOURNAL OF BIOGEOGRAPHY, 2021, 卷号: 48, 期号: 2, 页码: 372-385
作者:
Luo,Dong
;
Xu,Bo
;
Li,Zhi-Min
;
Sun,Hang
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浏览/下载：74/0
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提交时间：2022/04/02
biogeographical divides
East Asia
East China Sea
floristic regionalization
Kerria japonica
three‐
step landforms of China
TIBETAN PLATEAU
MOLECULAR PHYLOGEOGRAPHY
QUATERNARY CLIMATE
ASIA
DNA
CHLOROPLAST
ENDEMISM
HISTORY
PLANTS
DIVERSIFICATION
Reviewing the world's edible mushroom species: A new evidence-based classification system
期刊论文
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY, 2021
作者:
Li,Huili
;
Tian,Yang
;
Menolli Jr,Nelson
;
Ye,Lei
;
Karunarathna,Samantha C.
;
Perez-Moreno,Jesus
;
Rahman,Mohammad Mahmudur
;
Rashid,Md Harunur
;
Phengsintham,Pheng
;
Rizal,Leela
;
Kasuya,Taiga
;
Lim,Young Woon
;
Dutta,Arun Kumar
;
Khalid,Abdul Nasir
;
Le Thanh Huyen
;
Balolong,Marilen Parungao
;
Baruah,Gautam
;
Madawala,Sumedha
;
Thongklang,Naritsada
;
Hyde,Kevin D.
;
Kirk,Paul M.
;
Xu,Jianchu
;
Sheng,Jun
;
Boa,Eric
;
Mortimer,Peter E.
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浏览/下载：174/63
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提交时间：2023/09/08
