西亚试剂：Cell signalling by microRNA165/6 directs gene dose-dependen

Cell signalling by microRNA165/6 directs gene dose-dependent root cell fate
Annelie Carlsbecker1,2,8, Ji-Young Lee3,4,8, Christina J. Roberts2, Jan Dettmer1, Satu Lehesranta1, Jing Zhou3,4, Ove Lindgren1,5, Miguel A. Moreno-Risueno6, Anne Vatén1, Siripong Thitamadee1, Ana Campilho1, Jose Sebastian3, John L. Bowman7, Yk? Helariutta1,8 & Philip N. Benfey6,8

Institute of Biotechnology/Department of Biosciences, University of Helsinki, FIN-00014, Finland
Department of Physiological Botany, Evolutionary Biology Center, Uppsala University, Norbyv?gen 18D, SE-752 36 Uppsala, Sweden
Boyce Thompson Institute for Plant Research, Tower Road, Ithaca, New York 14853, USA
Graduate Field of Plant Biology, Cornell University, Ithaca, New York 14853, USA
Institute of Technology, University of Tartu, Tartu 50411, Estonia
Biology Department and IGSP Center for Systems Biology, Duke University, Durham, North Carolina 27708, USA
School of Biological Sciences, Monash

A key question in developmental biology is how cells exchange positional information for proper patterning during organ development. In plant roots the radial tissue organization is highly conserved with a central vascular cylinder in which two water conducting cell types, protoxylem and metaxylem, are patterned centripetally. We show that this patterning occurs through crosstalk between the vascular cylinder and the surrounding endodermis mediated by cell-to-cell movement of a transcription factor in one direction and microRNAs in the other. SHORT ROOT, produced in the vascular cylinder, moves into the endodermis to activate SCARECROW. Together these transcription factors activate MIR165a and MIR166b. Endodermally produced microRNA165/6 then acts to degrade its target mRNAs encoding class III homeodomain-leucine zipper transcription factors in the endodermis and stele periphery. The resulting differential distribution of target mRNA in the vascular cylinder determines xylem cell types in a dosage-dependent manner.

• 以上资料由西亚试剂：http://www.xiyashiji.com/ 提供此产品的详细信息如密度,含量,分子式,分子量等均可在西亚官网查询   
• 相关产品如汞乙酸汞氯化汞氧化汞碘化汞硫酸汞硝酸汞溴化汞硝酸亚汞氯化亚汞乙酸苯汞碘化汞钾硫氰酸汞氯化氨基汞三氯生三氯氧磷三氯乙烯水合氯醛三氯化磷三氯化钌三氯化钛三氯化铱三氯化铑三氯硫磷三氯乙烷三氯甲烷三氯卡班TCC1,3,5-三氯苯1,2,4-三氯苯1,2,3-三氯苯无水氯化铝三氯乙酸酐三氯乙酸钠碘甲烷二碘甲烷三碘甲烷 三氟碘甲烷硫酸二甲酯氯磺酸苯硫酚苯硫酚钠3-氨基苯硫酚2,6-二氯苯硫酚2,4-二氯苯硫酚2,5-二氯苯硫酚2-甲氧基苯硫酚2-氯乙醇 等均有销售.欢迎订购