A gene expression map of the Arabidopsis root.
A global map of gene expression within an organ can identify genes with coordinated expression in localized domains, thereby relating gene activity to cell fate and tissue specialization. Here, we present localization of expression of more than 22,000 genes in the Arabidopsis root. Gene expression was mapped to 15 different zones of the root that correspond to cell types and tissues at progressive developmental stages. Patterns of gene expression traverse traditional anatomical boundaries and show cassettes of hormonal response. Chromosomal clustering defined some coregulated genes. This expression map correlates groups of genes to specific cell fates and should serve to guide reverse genetics.
Birnbaum
Kenneth
K
Department of Biology, New York University, New York, NY 10003, USA.
Shasha
Dennis E
DE
Wang
Jean Y
JY
Jung
Jee W
JW
Lambert
Georgina M
GM
Galbraith
David W
DW
Benfey
Philip N
PN
D017360:Arabidopsis / Q000166:cytology / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism; D002469:Cell Separation; D002874:Chromosome Mapping; D032461:Chromosomes, Plant / Q000235:genetics; D015870:Gene Expression; D020869:Gene Expression Profiling; D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant; D049452:Green Fluorescent Proteins; D008164:Luminescent Proteins / Q000032:analysis; D018519:Meristem / Q000166:cytology / Q000235:genetics / Q000254:growth & development / Q000378:metabolism; D020411:Oligonucleotide Array Sequence Analysis; D010937:Plant Growth Regulators / Q000502:physiology; D018518:Plant Root Cap / Q000166:cytology / Q000235:genetics / Q000254:growth & development / Q000378:metabolism; D018517:Plant Roots / Q000166:cytology / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism; D011523:Protoplasts; D012333:RNA, Messenger / Q000032:analysis / Q000235:genetics; D018749:RNA, Plant / Q000032:analysis / Q000235:genetics; D020133:Reverse Transcriptase Polymerase Chain Reaction; D015398:Signal Transduction / Q000235:genetics; D014157:Transcription Factors / Q000235:genetics / Q000502:physiology
D008164:Luminescent Proteins; D010937:Plant Growth Regulators; D012333:RNA, Messenger; D018749:RNA, Plant; D014157:Transcription Factors; D049452:Green Fluorescent Proteins