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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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中国科学院东亚植物... [28]
昆明植物所硕博研究... [22]
中国西南野生生物种... [22]
资源植物与生物技术... [16]
植物化学与西部植物资... [4]
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Yang Yong... [16]
高立志 [12]
Sun Hang [10]
李德铢 [8]
En-Hua Xia [6]
伊廷双 [5]
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植物分类与资源学报 [7]
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GST, P < 0.05) were exhibited by this species. The SAMOVA revealed seven diverging groups of related chlorotypes, six of them had distinct nonoverlapping geographical ranges: one in the northeast comprising 10 populations, a second with a southeast distribution comprising 22 populations, and the remaning four groups comprising 15 populations located in the west part of the species’ range along different river valleys. The genetic clustering of populations into three regions was also supported by analysis of molecular variance, which showed that most genetic variation (82.43%) was found among these three regions. Two clusters were distinguished by both phylogenetic analysis and genealogical analysis of chlorotypes, one consisting of chlorotypes from the western region and the second consisting of those from the eastern region. Significant genetic differences between the two regions might be attributed to vicariance and restricted gene flow, and this vicariance could be explained by the physical environmental heterogeneity on each side of the Tanaka-Kaiyong Line. Following the uplift of the Tibetan Plateau, the reorganization of the major river drainages was primarily caused by river separation and capture events. These historical events could change the distribution of S. davidii from fragmented to continuous (Upper/Lower Jinshajiang and Yalongjiang/Daduhe), and from continuous to fragmented (Nujiang and Jinshajiang/Honghe). However, spatial and temporal patterns of phylogeographic divergence are strongly associated with historical disjunction rather than modern drainage connections. Moreover, the following north-south split in the eastern region and effective isolation with their genetic diversity were essentially modelled by genetic drift. The higher chlorotype richness and genetic divergence for populations in western region compared with other two regions suggests that there were multipe refugia or in situ survival of S. davidii in the Himalayan-Hengduan Mountain region. Fixation of chlorotypes in the northeastern region and near fixation in the southeastern region suggest a recent colonization of these areas. We further found that this species underwent past range expansion around 37-303 thousand years ago (kya). The southeastern populations likely experienced a demographic expansion via unidirectional gene flow along rivers, while northeastern populations underwent a more northward expansion, both from initial populations (s) (21, 22, 23) preserved on eastern refugia (Jinshajiang). This process might have been accompanied with a series of founder effects or bottlenecks making populations genetically impoverished. 3. Phylogeographic analysisbased on nuclear sequence，We sequenced the nuclear (ncpGS) region in all populations sampled, recovering 23 nuclear haplotypes. Compared to cpDNA, both NST (0.470) and GST (0.338) were relatively lower, but NST was also significantly larger than GST. 37.10% of the total variation was distributed among regions which was much lower than that shown by chlorotypes. Thus, more extensive distribution of nuclear haplotypes was exhibited across the geographical range instead of the strong population subdivision observed in chlorotypes. Similarly to the chloroplast data, we found that genetic differentiation of nDNA was positively correlated with the geographical distance, but the increase in the geographical distance between populations did not increase the genetic differentiation of nDNA as rapidly as that of cpDNA. These contrasting levels between the chloroplast and nuclear genomes of S. davidii are likely due to limited gene flow of cpDNA by seeds vs. the extensive gene flow of nDNA by wind-mediated pollen in the population history. We also determined from nuclear markers that haplotype diversity was reduced in the southeastern and northeastern regions due to the loss of rare haplotypes in western region. This reduction of gene diversity is also a signature of founder events or recent bottleneck during post-glacial colonization. However, nuclear diversity within populations remains high. This provides evidence that regionally pollen flow might be sufficiently high to blur the genetic identity of founder populations over a reasonably large spatial scale.3. Relationships among three varieties，The phylogenetic analysis identified two phylogroups of chlorotypes, corresponding to S. davidii var. davidii and var. chuansinesis. The former was distinguished by the abscence of predonminant nuclear haplotype H1 of the latter. The monophyletic group of chlorotypes in var. davidii and var. liangshanesis showed their relatively close relationship. And their genetic divergence from the third variety appears to be relative to their slight morphological difference in leaf size and the divergent environmental niche spaces they occupy. Thus, the observed differences in morphological characters between var. chuansinesis and other two varieties can be explained by the seed dispersal limitation illustrated above (as inferred by geographical separation) and by environmental heterogeneity (as inferred by precipitation or elevation) or by a combination of both. After all, the geological changes, drainage reorganization, and floristic differences following the Himalayan uplift have been suggested to affect the genetic structure of S. davidii. These results provide new insights into the phylogeographic pattern of plants in China. In addition, the unique population genetic structure found in S. davidii has provided important insights into the evolutionary history of this species. The genetic profile uncovered in this study is also critical for its conservation management. Our study has uncovered the existence of at least two ‘evolutionary significant units’ independent units within S. davidii, corresponding to var. davidii from eastern region and var. chuansinensis from western region. The conservation efforts should first focus on most western populations and on the southeastern ones exhibiting high levels of genetic diversity, while the genetically homogeneous northeastern populations located in the degraded Loess Plateau should require much greater conservation 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Genome Sequences Provide Insights into the Reticulate Origin and Unique Traits of Woody Bamboos
期刊论文
MOLECULAR PLANT, 2019, 卷号: 12, 期号: 10, 页码: 1353-1365
Authors:
Guo, Zhen-Hua
;
Ma, Peng-Fei
;
Yang, Guo-Qian
;
Hu, Jin-Yong
;
Liu, Yun-Long
;
Xia, En-Hua
;
Zhong, Mi-Cai
;
Zhao, Lei
;
Sun, Gui-Ling
;
Xu, Yu-Xing
;
Zhao, You-Jie
;
Zhang, Yi-Chi
;
Zhang, Yu-Xiao
;
Zhang, Xue-Mei
;
Zhou, Meng-Yuan
;
Guo, Ying
;
Guo, Cen
;
Liu, Jing-Xia
;
Ye, Xia-Ying
;
Chen, Yun-Mei
;
Yang, Yang
;
Hang, Bin
;
Lin, Choun-Sea
;
Lu, Ying
;
Li, De-Zhu
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Submit date：2019/12/20
Bambusoideae
polyploidization
comparative genomics
subgenome evolution
flowering
Genome-wide analysis of the callose enzyme families of fertile and sterile flower buds of the Chinese cabbage (Brassica rapa L. ssp. pekinensis)
期刊论文
FEBS OPEN BIO, 2019, 卷号: 9, 期号: 8, 页码: 1432-1449
Authors:
Pu, Yanan
;
Hou, Lingyun
;
Guo, Yingqi
;
Ullah, Ikram
;
Yang, Yongping
;
Yue, Yanling
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Submit date：2019/09/10
callose
Chinese cabbage
enzyme family
gene expression
nuclear sterility
Comparative transcriptomics identifies patterns of selection in roses
期刊论文
BMC PLANT BIOLOGY, 2018, 卷号: 18, 页码: 12
Authors:
Li, Shubin
;
Zhong, Micai
;
Dong, Xue
;
Jiang, Xiaodong
;
Xu, Yuxing
;
Sun, Yibo
;
Cheng, Fang
;
Li, De-zhu
;
Tang, Kaixue
;
Wang, Siqing
;
Dai, Silan
;
Hu, Jin-Yong
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Submit date：2019/01/02
Rosa Sp
Selection Pattern
Comparative Transcriptomics
Rosaceae-common
Rosa-specific
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
A global plastid phylogeny uncovers extensive cryptic speciation in the fern genus
Hymenasplenium
(Aspleniaceae)
期刊论文
MOLECULAR PHYLOGENETICS AND EVOLUTION, 2018, 卷号: 127, 页码: 203-216
Authors:
Xu, Ke-Wang
;
Zhou, Xin-Mao
;
Yin, Qian-Yi
;
Zhang, Liang
;
Ngan Thi Lu
;
Knapp, Ralf
;
Thien Tam Luong
;
He, Hai
;
Fan, Qiang
;
Zhao, Wan-Yi
;
Gao, Xin-Fen
;
Liao, Wen-Bo
;
Zhang, Li-Bing
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Submit date：2018/12/27
Asplenium
Cryptic Species
Eupolypods Ii
Fern Phylogeny
Pantropical Distribution
DNA barcoding herbaceous and woody plant species at a subalpine forest dynamics plot in Southwest China
期刊论文
ECOLOGY AND EVOLUTION, 2018, 卷号: 8, 期号: 14, 页码: 7195-7205
Authors:
Tan, Shao-Lin
;
Luo, Ya-Huang
;
Hollingsworth, Peter M.
;
Burgess, Kevin S.
;
Xu, Kun
;
Li, De-Zhu
;
Gao, Lian-Ming
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Submit date：2018/09/27
Dna Barcoding
Forest Dynamics Plot
Herbaceous Species
Species Identification
Woody Species
Yulong Mountain
Genome-Wide Identification and Expression Analysis of the Cation Diffusion Facilitator Gene Family in Turnip Under Diverse Metal Ion Stresses
期刊论文
FRONTIERS IN GENETICS, 2018, 卷号: 9, 页码: 103
Authors:
Li, Xiong
;
Wu, Yuansheng
;
Li, Boqun
;
He, Wenqi
;
Yang, Yonghong
;
Yang, Yongping
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Submit date：2018/05/08
Phylogenetic Analysis
Protein Domain
Metallic Element
Ion Transport
Gene Expression
The catalogue of seed plants in Yunnan Province
期刊论文
China Scientific Data, 2018, 卷号: 3, 期号: 1, 页码: 1
Authors:
Chen Jiahui
;
Deng Tao
;
Zhang Daigui
;
Yue Jipei
;
Zhou Zhuo
;
Sun Lu
;
Li Yanbo
;
Li Wenqing
;
Shi Mingming
;
Sun Hang
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Submit date：2019/03/25
Plant phylogenomics based on genome-partitioning strategies: Progress and prospects.
期刊论文
Plant diversity, 2018, 卷号: 40, 期号: 4, 页码: 158-164
Authors:
Yu, Xiangqin
;
Yang, Dan
;
Guo, Cen
;
Gao, Lianming
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Submit date：2019/03/29
Reproductive traits and evolutionary divergence between Mediterranean crops and their wild relatives
期刊论文
PLANT BIOLOGY, 2018, 卷号: 20, 页码: 78-88
Authors:
Iriondo, J. M.
;
Milla, R.
;
Volis, S.
;
Rubio de Casas, R.
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Submit date：2018/04/28
Crop Evolution
Crop Wild Relatives
Domestication Syndrome
Gene Flow
Mediterranean Crops
Reproductive Traits
Weeds
