Molecular dissection of the pea shoot apical meristem Export

@article{citeulike:6070055, abstract = {The shoot apical meristem (SAM) is responsible for the development of all the above-ground parts of a plant. Our understanding of the SAM at the molecular level is incomplete. This study investigates the gene expression repertoire of SAMs in the garden pea (Pisum sativum). To this end, 10 346 EST sequences representing 7610 unique genes were generated from SAM cDNA libraries. These sequences, together with previously reported pea ESTs, were used to construct a 12K oligonucleotide array to identify genes with differential SAM expression, as compared to axillary meristems, root apical meristems, or non-meristematic tissues. A number of genes were identified, predominantly expressed in specific cell layers or domains of the SAM and thus are likely components of the gene networks involved in stem cell maintenance or the initiation of lateral organs. Further in situ hybridization analysis confirmed the spatial localization of some of these genes within the SAM. Our data also indicate the diversification of some gene expression patterns and hence functions in legume crop plants. A number of transcripts highly expressed in all three meristems have also been uncovered and these candidates may provide valuable insight into molecular networks that underpin the maintenance of meristematic functionality. 10.1093/jxb/erp254}, author = {Liang, Dacheng and Wong, Chui E. and Singh, Mohan B. and Beveridge, Christine A. and Phipson, Belinda and Smyth, Gordon K. and Bhalla, Prem L.}, citeulike-article-id = {6070055}, citeulike-linkout-0 = {http://dx.doi.org/10.1093/jxb/erp254}, citeulike-linkout-1 = {http://jxb.oxfordjournals.org/content/60/14/4201.abstract}, citeulike-linkout-2 = {http://jxb.oxfordjournals.org/content/60/14/4201.full.pdf}, citeulike-linkout-3 = {http://view.ncbi.nlm.nih.gov/pubmed/19706781}, citeulike-linkout-4 = {http://www.hubmed.org/display.cgi?uids=19706781}, day = {1}, doi = {10.1093/jxb/erp254}, journal = {J. Exp. Bot.}, keywords = {legumes, stem\_cell, transcriptome\_analysis}, month = {October}, number = {14}, pages = {4201--4213}, posted-at = {2009-11-04 16:20:16}, priority = {2}, title = {Molecular dissection of the pea shoot apical meristem}, url = {http://dx.doi.org/10.1093/jxb/erp254}, volume = {60}, year = {2009} }

TY - JOUR ID - citeulike:6070055 L3 - citeulike-article-id:6070055 N2 - The shoot apical meristem (SAM) is responsible for the development of all the above-ground parts of a plant. Our understanding of the SAM at the molecular level is incomplete. This study investigates the gene expression repertoire of SAMs in the garden pea (Pisum sativum). To this end, 10 346 EST sequences representing 7610 unique genes were generated from SAM cDNA libraries. These sequences, together with previously reported pea ESTs, were used to construct a 12K oligonucleotide array to identify genes with differential SAM expression, as compared to axillary meristems, root apical meristems, or non-meristematic tissues. A number of genes were identified, predominantly expressed in specific cell layers or domains of the SAM and thus are likely components of the gene networks involved in stem cell maintenance or the initiation of lateral organs. Further in situ hybridization analysis confirmed the spatial localization of some of these genes within the SAM. Our data also indicate the diversification of some gene expression patterns and hence functions in legume crop plants. A number of transcripts highly expressed in all three meristems have also been uncovered and these candidates may provide valuable insight into molecular networks that underpin the maintenance of meristematic functionality. 10.1093/jxb/erp254 IS - 14 JF - J. Exp. Bot. EP - 4213 TI - Molecular dissection of the pea shoot apical meristem VL - 60 SP - 4201 KW - legumes KW - stem_cell KW - transcriptome_analysis AU - Liang, Dacheng AU - Wong, Chui AU - Singh, Mohan AU - Beveridge, Christine AU - Phipson, Belinda AU - Smyth, Gordon AU - Bhalla, Prem PY - 2009/10/01/ UR - http://dx.doi.org/10.1093/jxb/erp254 ER -