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慢生根瘤菌属结瘤基因的进化及遗传分析 被引量:4

Phylogenetic and genetic analysis of symbiotic nodulation genes within the Bradyrhizobium
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摘要 根瘤菌中存在一系列控制固氮结瘤因子(lipo-chito-oligosaccharides)合成的结瘤基因(nodulationgenes)。其中,nodA基因是合成结瘤因子所必需的,该基因负责酰基转移酶的合成,能将不饱和脂肪酸转移到结瘤因子寡聚糖骨架上;基因nodZ,nolL和noeI为宿主专一性结瘤基因,分别转录合成岩藻糖基转移酶,岩藻糖乙酰化酶和岩藻糖甲基化酶。通过GenBank调取慢生根瘤菌属及其他根瘤菌属的结瘤基因nodA,nodZ,nolL和noeI,构建系统发育树,进行进化和遗传分析。结果表明,慢生根瘤菌属各个菌株的nodA,nodZ,nolL和noeI具有很高的相关性,但是与根据保守基因16SrDNA和dnaK分类情况不完全相符。这表明慢生根瘤菌属的结瘤基因主要是通过直系遗传的,同时可能为适应宿主及环境条件,结瘤基因有少量的平行转移。结果表明,慢生根瘤菌属各个菌株的nodA,nodZ,nolL和noeI具有很高的同源性,同时发现基于保守基因16SrDNA和dnaK对慢生根瘤菌的分类情况与慢生根瘤菌属各菌株在nodA,nodZ,nolL和noeI具有较高同源性的事实不完全相符。这表明慢生根瘤菌属的结瘤基因主要是通过直系遗传的,同时可能为适应宿主及环境条件,结瘤基因有少量的平行转移。 Symbiotic nitrogen fixing bacteria-known as rhizobia-harbour a set of nodulation (nod) genes that control the synthesis of modified lipo-chitooligosaccharides, called Nod factors that are required for legume nodulation. The nodA gene, which is essential for symbiosis, is responsible for the attachment of the fatty acid group to the oligosaccharide backbone. The nodZ, nolL, and noel genes are involved in specific modifications of Nod factors common to bradyrhizobia, i.e., the transfer of a fucosyl group on the Nod factor core, fucose acetylation and fucose methylation, respectively. The distribution of the nodZ, nolL, and noel genes in the studied strains was found to correlate with the nodA tree topology. Moreover, the nodA, nodZ, and noel phylogenies were largely congruent, but did not closely follow the taxonomy of the strains shown by the housekeeping 16S rRNA and dnaK genes. Additionally, the distribution of nodZ, noel, and nolL genes suggested that their presence may be related to the requirements of their 'legume hosts. These data indicated that the spread and maintenance of nodulation genes within the Bradyrhizobium genus occurred through vertical transmission, although lateral genetransfer also played a significant role.
作者 侯卫国 连宾
出处 《遗传》 CAS CSCD 北大核心 2007年第1期118-126,共9页 Hereditas(Beijing)
基金 江苏省高校产业化项目(编号:JHB04-017) 南京师范大学人才引进科研基金(编号:184070H2B39)资助~~
关键词 慢生根瘤菌属 进化 遗传分析 结瘤基因 16S RDNA DNAK Bradyrhizobium evolution genetic analysis Nod genes 16S rDNA dnaK
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  • 1Sy A, Giraud E, Jourand P, Garcia N, Willems A, de Lajudie P, Prin Y, Neyra M, Gillis M, Boivin-Masson C,Dreyfus B. Methylotrophic Methylobacterium bacteria nodulate and fix nitrogen in symbiosis with legumes. J Bacteriol, 2001, 183(1): 214--220.
  • 2Van Berkum P, Eardly BD. Molecular Evolutionary Systematics of the Rhizobiaceae. In: Spaink, HP, Kondorosi A, Hooykaas PJJ (Eds.). The Rhizobiaceae. Kluwer Academic Publishers, Dordrecht, 1998, 1 -- 24.
  • 3Chen WM, Laevens S, Lee TMT, de Vos P, Mergeay M,Vandamme P. Ralstonia taiwanensis sp. nov., isolated from root nodules of Mimosa species and sputum of a cystic fibrosis patient. Int J Syst Evol Microbiol, 2001,51(pt5): 1729-- 1735.
  • 4Denarie J, Debelle F, Prome JC. Rhizobium lipo-chitooligosaccharide nodulation factors: signaling molecules mediating recognition and morphogenesis. Annu Rev Biochem, 1996, 65: 503--535.
  • 5Schultze M, Kondorosi A. Regulation of symbiotic root nodule development. Annu Rev Genet, 1998,32:33 - 57.
  • 6Downie JA. Functions of Rhizobial Nodulation Genes. In:Spaink HP, Kpp, ondorosi A, Hooykaas PJJ (Eds.), The Rhizobiaceae, Kluwer Academic Publishers, Dordrecht,1998, 387--402.
  • 7Debelle F, Plazanet C, Roche P, Pujol C, Savagnac A,Rosenberg C, Prome JC, Denarie J. The NodA proteins of Rhizobium meliloti and Rhizobium tropici specify the N-acylation of Nod factors by different fatty acids. Mol Microbiol, 1996, 22(2): 303--314.
  • 8Ritsema T, Wijfjes AHM, Lugtenberg BJJ, Spaink HP.Rhizobium nodulation protein NodA is a host-specific determinant of the transfer of fatty acids in Nod factor biosynthesis. Mol Gen Genet, 1996, 251 ( 1): 44-- 51.
  • 9Roche P, Maillet F, Plazanet C, Debelle F, Ferro M,Truchet G, Prome JC, Denarie J. The common nodABC genes of Rhizobium meliloti are host-range determinants.Proc Natl Acad Sci USA, 1996, 93(26): 15305-- 15310.
  • 10Perret X, Staehelin C, Broughton WJ. Molecular basis of symbiotic promiscuity. Microbiol Mol Biol Rev, 2000,64(1): 180--201.

同被引文献39

  • 1Bandara K A N P, Saxena R C. A technique fur handling and sexing Callosobruchus maculates ( F. ) adults ( Coleoptera: Bruchidae) [J] . Journal of Stored Product Research, 1995,31 (1):97- 100.
  • 2Delmer D P,Stalker D. Higher plants contmn homologs of the bacterial CelA genes encoding the catalytic subunit of the cellulose synthase [ J ]. Journal of Forestry Research, 1996, 16 (1):67- 72.
  • 3A loni Y, Delmer D P, Benziman M. Achievement of high rates of in vitro synthesis of 1,4-β-glucan: activation by cooperative interaction of the Acetobacter xylinum enzyme system with GTP, polyethylene glycol, and a protein factor[ J]. Proc Natl Acad Sci USA, 1982,79:6448- 6452.
  • 4Holland N, Holland D, Helentjarls T. A comparative analysis of the plant cellulose synthase (CesA) gene family [ J]. Plant Physiology ,2000,123 : 1313 - 1323.
  • 5Scheible W R. Glycosyltransferases and cell wall biosynthesis [ J ]. Plant Biology, 2004,7 : 285 - 295.
  • 6Gao JL, Sun JG, Li Y, et al. Numerical taxonomy and DNA relatedness of tropical rhizobia isolated from Hainan province, China. Int J of Syst Bacteriology, 1994, 44(1): 151-158.
  • 7Sy A, Giraud E, Jourand P, et al. Methylotrophic Methylobacterium bacteria nodulate and fix nitrogen in symbiosis with legumes. J Bacteriol, 2001, 183(1): 214-220.
  • 8Marmur J. A procedure for the isolation of deoxyribonucleic acid from microorganism. J Mol Biol, 1961, 3: 208-218.
  • 9Weisburg WG, Barns SM, Pelletier DA, et al. 16S ribosomal DNA amplification for phylogenetic study. J Bacteriol, 1991, 173(2): 697-703.
  • 10van Berkum P, Beyene B, Eardly BD. Phylogenetic relationships among Rhizobium species nodulating the common bean (Phaseolus vulgaris L.). Int J Syst Bacteriol,1996, 46(1): 240-244.

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