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The origin of Mosuo people as revealed by mtDNA and Y chromosome variation

Science china(Life sciences) 2004年第1期47卷 1-10页

作者： WEN Bo, SHI Hong, REN Ling, XI Huifeng, LI Kaiyuan, ZHANG Wenyi, SU Bing, SI Shiheng, JIN Li & XIAO ChunjieJoined Laboratory of Human Population Genetics of Yunnan University and Fudan University, kunming 650091, china Key Laboratory of Bioresources Conservation and Utilization & Human Genetics Center of Yunnan University, kunming 650091, china National Key Laboratory of Genetic Engineering & Center for Anthropological Studies, School of Life sciences, Fudan University, Shanghai 200433, china kunming institute of zoology, chinese academy of sciences, kunming 650031, china Center for Genome Information, Department of Environmental Health, University of Cincinnati, Cincinnati 45267, USA The Central Hospital of Ninglang County, Ninglang 674300, china 1. Joined Laboratory of Human Population Genetics of Yunnan University and Fudan University 650091 Kunming China 2. Key Laboratory of Bioresources Conservation and Utilization & Human Genetics Center of Yunnan University 650091 Kunming China 3. National Key Laboratory of Genetic Engineering & Center for Anthropological Studies School of Life Sciences Fudan University 200433 Shanghai China 4. kunming institute of zoology Chinese Academy of Sciences 650031 Kunming China 5. Center for Genome Information Department of Environmental Health University of Cincinnati 45267 Cincinnati USA 6. The Central Hospital of Ninglang County 674300 Ninglang China

The Mosuo, living in the Lugu Lake area in northwest Yunnan Province, china, is the only matriarchal population in china. The Mosuo was officially identified as Naxi nationality although its relationship with Naxi remains controversial. We studied the genetic relationship between the Mosuo and five other ethnic groups currently residing in northwest Yunnan, i.e. Naxi, Tibetan, Bai, Yi and Pumi, by typing the genetic variations in mtDNA HVS1 and 21 Y chromosome markers (13 SNPs & 8 STR markers). We showed that the maternal lineages of the Mosuo bear the strongest resemblance with those found in Naxi while its paternal lineages are more similar to those that are prevalent in Yunnan Tibetan. The marked difference between paternal and maternal lineages may be attributable to the genetic history, matriarchal structure, and visiting marriage.

关键词： Mosuo, mtDNA, Y chromosome, polymorphism.

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Phylogeny of fireflies (Coleoptera: Lampyridae) inferred from mitochondrial 16S ribosomal DNA, with references to morphological and ethological traits

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Progress in Natural Science:Materials International 2006年第8期16卷 817-826页

作者： LI Xueyan, YANG Shuang, XIE Meng and LIANG Xingcai (Laboratory of Entomology, kunming institute of zoology, chinese academy of sciences, kunming 650223, china Key Laboratory of Cellular and Molecular Evolution, kunming institute of zoology, chinese academy of sciences, kunming 650223, china Graduate School of the chinese academy of sciences, Beijing 100039, china) [a]Laboratory of Entomology Kunming Institute of Zoology Chinese Academy of Sciences Kunming China [b]Graduate School of the chinese academy of sciences Beijing China [c]Key Laboratory of Cellular and Molecular Evolution Kunming Institute of Zoology Chinese Academy of Sciences Kunming China

We sequenced partial mitochondrial 16S ribosomal DNA (16S rDNA) of 18 firefly species from Southwest of china. Combined with homologous sequences previously reported, phylogenetic trees including Japanese, Korean and chinese species were reconstructed by neighbor-joining, maximum parsimony and Bayesian methods. All reconstructions agree on most nodes of the trees. Monophyly of Lampyridae is not supported because Rhagophthalmus ohbai in Rhagophthalmidae is included within it. Lamprigera, a genus placed unreliably in Lampyrinae, shows a close relationship to Amydetinae. Monophyly of Luciolinae is not supported because Pristolycus sagulatus (Lampyrinae) is included within it. In the Luciolinae, monophyly of Curtos and Hotaria is well established, respectively, but both morphological and molecular data continue to indicate that Luciola is not monophyletic and its subdivision is indeed necessary. Within the Lampyrinae, both Pyrocoelia and Diaphanes are not monophyletic, but monophyly of Pyrocoelia + Diaphanes is well supported. Phylogeny of Diaphanes is discussed for the first time. Generic placement of a newly discovered species (Diaphanes pectinealis Li et Liang) sharing some characters of Pyrocoelia and Diaphanes challenges the delimitation of these two similar genera. With references to the firefly mating systems, we suggest that more emphases should be placed on those sexually selected characters such as antennal structure in taxonomy of Lampyridae.

关键词： Lampyridae mitochondrial 16S rDNA morphological and ethological traits phylogeny.

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The topological configuration and conformational analysis of mRNA in translation

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chinese Science Bulletin 2002年第5期47卷 384-389页

作者： LIU Shuqun & LIU Ciquankunming institute of zoology, chinese academy of sciences, kunming 650223, china Modern Biological Center, Yunnan University, kunming 650091, china kunming institute of zoology Chinese Academy of Sciences Kunming China Modern Biological Center Yunnan University Kunming China

The theoretical model construction of mRNA hairpin structure and single-stranded structure as well as the simulation studies on RNA structure determined by the X-ray crystal diffraction and nuclear magnetic resonance revealed that in translation, after mRNA being unfolded into single-stranded structure, its topological configuration was closely correlative with the original hairpin structure. The conformational features of single-stranded mRNA appeared as helical regions alternating with curly regions to different extents, which might exert the influence on the folding of nascent polypeptide by various regulating effects including different translational rates.

关键词： hairpin structure of mRNA topological configuration of single-stranded mRNA.

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Phylogenetic studies of the core Alismatales inferred from morphology and rbcL sequences

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Progress in Natural Science:Materials International 2009年第8期19卷 931-945页

作者： Xiaoxian Li, Zhekun Zhou kunming institute of Botany, chinese academy of sciences, kunming 650204, china [a]kunming institute of Botany Chinese Academy of Sciences Kunming 650204 China

The phylogeny of Alismatales remains an area of deep uncertainty, with different arrangements being found in studies that examined various subsets of genes and taxa. Herein we conducted separate and combined analyses of 103 morphological characters and 52 rbcL sequences to explore the controversial phylogenies of the families. Congruence between the two data sets was explored by computing several indices. Morphological data sets contain poor phylogenetic signals. The homology of morphological characters was tested based on the total evidence of phylogeny. The incongruence between DNA and morphological results; the hypothesis of the ‘Cymodoceaceae complex’; the relationships between Najadaceae and Hydrocharitaceae; the intergeneric relationships of Hydrocharitaceae; and the evo- lutionary convergence of morphological characters were analyzed and discussed.

关键词： Alismatales Morphological phylogeny rbcL sequences Cymodoceaceae complex Najadaceae Hydrocharitaceae

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Diversity and evolution of MicroRNA gene clusters

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Science china(Life sciences) 2009年第3期52卷 261-266页

作者： ZHANG YanFeng,ZHANG Rui & SU Bing State Key Laboratory of Genetic Resources and Evolution,kunming institute of zoology,chinese academy of sciences,kunming 650223,china 1. State Key Laboratory of Genetic Resources and Evolution Kunming Institute of Zoology Chinese Academy of Sciences Kunming 650223 China

microRNA(miRNA) gene clusters are a group of miRNA genes clustered within a proximal distance on a *** a large number of miRNA clusters have been uncovered in animal and plant genomes,the functional consequences of this arrangement are still poorly *** in a polycistron,the coexpressed miRNA clusters are pivotal in coordinately regulating multiple processes,including embryonic development,cell cycles and cell *** this review,based on recent progress,we discuss the genomic diversity of miRNA gene clusters,the coordination of expression and function of the clustered miRNAs,and the evolutionarily adaptive processes with gain and loss of the clustering miRNA genes mediated by duplication and transposition events.

关键词： microRNA gene clusters gene duplication adaptive evolution transposition

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A possible mode of the specific recognition of nucleic acids by proteins

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chinese Science Bulletin 2001年第11期46卷 930-934页

作者： LI Xuqing & LIU CiquanDepartment of Computer Science, kunming University of Science and Technology, kunming 650041, china Laboratory of Cellular and Molecular Evolution, kunming institute of zoology, chinese academy of sciences, kunming 650223, china Yunnan Observatory, chinese academy of sciences, kunming 650011, china 4. Modern Biological Center, Yunnan University, kunming 650091, china Department of Computer Science Kunming University of Science and Technology Kunming China Yunnan Observatory Chinese Academy of Sciences Kunming China Laboratory of Cellular and Molecular Evolution Kunming Institute of Zoology Chinese Academy of Sciences Kunming China Modern Biological Center Yunnan University Kunming China

Seven sets of protein target sites, which occur in several gene promoters, have been analyzed. The results suggest that there is a possible mode of specific recognition of double-helical nucleic acids by proteins. This recognition mode is related to a special topological property of double-helical DNA, which is termed base spatial pattern (BSP) of DNA segment. BSP is the spatial topological property determined only by the spatial arrangement of the bases on double-helical DNA segment.

关键词： protein nucleic acids recognition base spatial pattern (BSP) target sites.

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Dynamics of RNA with A6 bulge loop

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chinese Science Bulletin 2002年第12期47卷 1003-1006页

作者： LIANG Chongrong & LIU CiquanKey Laboratory of Cellular & Molecular Evolution, kunming institute of zoology, chinese academy of sciences, kunming 650223, china Biology Department, Jinan University, Guangzhou 510630, china Key Laboratory of Cellular & Molecular Evolution Kunming Institute of Zoology Chinese Academy of Sciences Kunming China Biology Department Jinan University Guangzhou China

In order to understand the behavior of RNAs with large bulges in solution, molecular dynamics was performed on the RNA molecule in water with A6 bulge. The result of simulation showed that nonstacked conformation is the main conformation in large bulges, and the backbone of large bulge is of great conformational flexibility, but bulges-induced bends are relatively rigid. The fluctuation in bulge has little influence on the bend angle of RNAs.

关键词： RNA large bulge conformation bend angle.

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Melanocortin-1 receptor gene variants in four chinese ethnic populations

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Cell Research 2001年第1期11卷 81-84页

作者： SHI PENG, XUE MEI LU, HUAI RONG LUO, JIN-GONG XIANG-YU, YA PING ZHANG (Laboratory of Cellular and Molecular Evolution, kunming institute of zoology, the chinese academy of sciences, kunming 650223, china) 1Laboratory of Cellular and Molecular Evolution Kunming Institute of Zoology the Chinese Academy of Sciences Kunming 650223 China 1Laboratory of Cellular and Molecular Evolution Kunming Institute of Zoology the Chinese Academy of Sciences Kunming 650223 China 1Laboratory of Cellular and Molecular Evolution Kunming Institute of Zoology the Chinese Academy of Sciences Kunming 650223 China 1Laboratory of Cellular and Molecular Evolution Kunming Institute of Zoology the Chinese Academy of Sciences Kunming 650223 China 1Laboratory of Cellular and Molecular Evolution Kunming Institute of Zoology the Chinese Academy of Sciences Kunming 650223 China

There is strong relationship between melanocortin-1 receptor (MCIR) gene variants and human hair color and skin type. Based on a sequencing study of MC1R gene in 50 individuals from the Uygur, Tibetan, Wa and Dai ethnic populations, we discuss the occurrence of 7 mc1r variants consisting of 5 nonsynonymous sites (Val60Leu, Arg67Gln, Val92Met, Arg163Gln and Ala299Val) and 2 synonymous sites (C414T and A942G), among which C414T and Ala299Val were reported for the first time. Confirmation and analysis were the made of 122 individuals at three common point mutations (Val92Met, Arg163Gln, A942G) using PCR-SSCP. The frequency of Arg163Gln variant varies in the four ethnic populations, with percentage of 40%, 85.0%, 66. 2% and 72.7%, respectively, while those of Val92Met and A942G are roughly similar in these four populations. The different environments, migration and admixture of various ethnic groups in china might have impact on the observed frequency of Arg163Gln.

关键词： MC1R gene ethnic populations nonsynonymous site synonymous site.

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Comparison of dynamic changes in endogenous hormones and sugars between abnormal and normal Castanea mollissima

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Progress in Natural Science:Materials International 2008年第6期18卷 685-690页

作者： Tao Liua,b,Yunqian Hua,*,Xiaoxian Li a akunming institute of Botany,chinese academy of sciences,kunming 650204,china bGraduate University of the chinese academy of sciences,Beijing 100049,china kunming institute of Botany Chinese Academy of Sciences Kunming 650204 China Graduate University of the chinese academy of sciences Beijing 100049 China

To elucidate the possible functions of endogenous hormones in the flowering of chestnut,concentrations of four endogenous hor-mones[indole-3-acetic acid(IAA),gibberellic acid(GA),abscisic acid(ABA),zeatin riboside(ZR))and the soluble sugars content were measured in both normal and developmentally abnormal chinese chestnut(Castanea mollissima)during flowering and fruiting *** results showed that the contents of ZR,ABA,and GA exhibited a significant dierent pattern in normal trees from that in abnormal trees,while the contents of IAA and soluble sugars showed a similar change pattern between *** results suggest that quantitative changes in endogenous hormones may correspond to dierent flowering and fruiting mechanisms.

关键词： Castanea mollissima Endogenous hormones Soluble sugars

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Diacylated Triterpenoid Saponin from Silene szechuensis

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chinese Chemical Letters 1999年第1期10卷 33-36页

作者： Cheng ZOU Jia Xiong JIANG Chang Xiang CHEN Jun ZHOU Qing ZHAO(Faculty of Pharmacy, kunming Medical College, kunming 650031)(kunming institute of Botany, the chinese academy of sciences, kunming 650204)(Yunnan College of Traditional chinese Medicine. Ku kunming Med Coll Fac Pharm Kunming 650031 Peoples R China chinese Acad Sci Kunming Inst Bot Kunming 650204 Peoples R China Yunnan Coll Tradit chinese Med Kunming 650011 Peoples R China

A new triterpenoid saponin, named silenoside, with sugar chains esterified by two different acyl groups was isolated from Silene szechuensis. Its structure was elucidated by chemical and spectral methods.

关键词： silenoside acylated triterpenoids saponin Silene szechuensis

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