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排序方式: 共有167条查询结果,搜索用时 437 毫秒
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Thorsten TrimbuchPrateep Beed Johannes VogtSebastian Schuchmann Nikolaus MaierMichael Kintscher Jörg BreustedtMarkus Schuelke Nora StreuOlga Kieselmann Irene BrunkGregor Laube Ulf StraussArne Battefeld Hagen WendeCarmen Birchmeier Stefan WieseMichael Sendtner Hiroshi KawabeMika Kishimoto-Suga Nils BroseJan Baumgart Beate GeistJunken Aoki Nic E. SavaskanAnja U. Bräuer Jerold ChunOlaf Ninnemann Dietmar Schmitz Robert Nitsch 《Cell》2011,146(6):1043
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C. Zanke N. Borisjuk B. Ruoss L. Schilde-Rentschler H. Ninnemann V. Hemleben 《TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik》1995,91(5):720-726
A genetic map of rye, Secale cereale L., chromosome 1R covering 247 cM was constructed utilizing 27 RFLP and four C-band markers, including terminal C-bands. Genetic mapping of C-bands and the centromere, and in situ hybridization of three RFLP clones, allowed for the integration of the genetic and cytological maps. Eight contact points between the genetic and cytological maps revealed variation in the recombination distance to cytological distance ratio ranging between 0.25 and 1.95, a 7.8-fold difference. Recombination was found to be highest in the satellite region of 1RS and lowest in the most distal region of 1RL. 相似文献
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Jerold L. Grashoff 《Brittonia》1975,27(1):69-73
A new genus and species from Mexico,Metastevia hintonii, is described. The genus, considered to be closely related to and derived fromStevia, differs in seven morphological features from all known species ofStevia. The reasons for recognizing the new genus are discussed in detail. 相似文献
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RNA ligase has been extensively purified by a new procedure in high yield from T4-infected Escherichia coli. The enzyme consists of a single polypeptide chain of molecular weight 47,000. It catalyzes the formation of a phosphodiester bond between a 5′-PO4-terminated oligonucleotide and a 3′-OH terminated oligonucleotide. The purified enzyme catalyzes both the intramolecular formation of single-stranded circles with longer oligonucleotides of the type pAp(Ap)nA?OH, where n is about 15 or greater and the intermolecular joining of pAp(Ap)3AOH (where the 5′-PO4-terminated oligonucleotide is short enough to prevent apposition of its 3′ and 5′ ends) to UpUpUOH when high concentrations of the 3′-OH-terminated acceptor oligonucleotide are present. Preparations of RNA ligase at all stages of purification show an unusual dependence of specific activity of the enzyme on the concentration of enzyme present in the assay. However, when care is taken to determine meaningful specific activities at each step, the ligase is found to be very stable during chromatography on various ion-exchange columns and may be purified by conventional techniques. 相似文献
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Transporters for nitrogenous compounds in plants 总被引:4,自引:0,他引:4