Pfeifer, M., Kugler, K.G., Sandve, S.R., Zhan, B., Rudi, H., Hvidsten, T.R., Rogers, J., Doležel, J., Pozniak, C., Eversole, K., Feuillet, C., Gill, B., Friebe, B., Lukaszewski, A.J., Sourdille, P., Endo, T.R., Kubaláková, M., Číhalíková, J., Dubská, Z., Vrána, J., Šperková, R., Šimková, H., Febrer, M., Clissold, L., McLay, K., Singh, K., Chhuneja, P., Singh, N.K., Khurana, J., Akhunov, E., Choulet, F., Alberti, A., Barbe, V., Wincker, P., Kanamori, H., Kobayashi, F., Itoh, T., Matsumoto, T., Sakai, H., Tanaka, T., Wu, J., Ogihara, Y., Handa, H., Maclachlan, P.R., Sharpe, A., Klassen, D., Edwards, D., Batley, J., Olsen, O.A., Sandve, S.R., Lien, S., Steuernagel, B., Wulff, B., Caccamo, M., Ayling, S., Ramirez-Gonzalez, R.H., Clavijo, B.J., Wright, J., Pfeifer, M., Spannagl, M., Martis, M.M., Mascher, M., Chapman, J., Poland, J.A., Scholz, U., Barry, K., Waugh, R., Rokhsar, D.S., Muehlbauer, G.J., Stein, N., Gundlach, H., Zytnicki, M., Jamilloux, V., Quesneville, H., Wicker, T., Faccioli, P., Colaiacovo, M., Stanca, A.M., Budak, H., Cattivelli, L., Glover, N., Pingault, L., Paux, E., Sharma, S., Appels, R., Bellgard, M., Chapman, B., Nussbaumer, T., Bader, K.C., Rimbert, H., Wang, S., Knox, R., Kilian, A., Alaux, M., Alfam, F., Couderc, L., Guilhot, N., Viseux, C., Loaec, M., Keller, B., Praud, S., Mayer, K.F., Olsen, O.A.
SCIENCE
345:
1250091,
2014
Keywords:
Abstract:
Allohexaploid bread wheat (Triticum aestivum L.) provides approximately 20% of
calories consumed by humans. Lack of genome sequence for the three homeologous
and highly similar bread wheat genomes (A, B, and D) has impeded expression analysis of the
grain transcriptome.We used previously unknown genome information to analyze the cell
type–specific expression of homeologous genes in the developing wheat grain and identified
distinct co-expression clusters reflecting the spatiotemporal progression during endosperm
development.We observed no global but cell type– and stage-dependent genome dominance,
organization of the wheat genome into transcriptionally active chromosomal regions, and
asymmetric expression in gene families related to baking quality. Our findings give insight into
the transcriptional dynamics and genome interplay among individual grain cell types in a
polyploid cereal genome.
Fulltext: contact IEB authors
IEB authors: Jarmila Číhalíková,
Jaroslav Doležel,
Zdeňka Dubská,
Marie Kubaláková,
Hana Šimková,
Jan Vrána
