4 research outputs found
New evidence for differential roles of L10 ribosomal proteins from Arabidopsis
The ribosomal protein L10 (RPL10) is an integral component of the eukaryotic ribosome large subunit. Besides being a constituent of ribosomes and participating in protein translation, additional extra-ribosomal functions in the nucleus have been described for RPL10 in different organisms. Previously, we demonstrated that Arabidopsis thaliana RPL10 genes are involved in development and translation under UV-B stress. In this work, transgenic plants expressing ProRPL10:GUS fusions show that, while AtRPL10A and AtRPL10B are expressed both in the female and male reproductive organs, AtRPL10C expression is only restricted to pollen grains. Moreover, the characterization of double rpl10 mutants indicates that the three AtRPL10 differentially contribute to the total RPL10 activity in the male gametophyte. All three AtRPL10 proteins mainly accumulate in the cytosol but also in the nucleus suggesting extra-ribosomal functions. After a UV-B treatment, only AtRPL10B localization increases in the nuclei. We also here demonstrate that the three AtRPL10 genes can complement a yeast RPL10 mutant. Finally, the involvement of RPL10B and RPL10C in UV-B responses was analyzed by 2D gels followed by mass spectrometry. Overall, our data provide new evidences about the non-redundant roles of RPL10 proteins in Arabidopsis.Fil: Falcone Ferreyra, MarĂa Lorena. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Centro de Estudios FotosintĂ©ticos y BioquĂmicos. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Centro de Estudios FotosintĂ©ticos y BioquĂmicos; ArgentinaFil: Casadevall, Romina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Centro de Estudios FotosintĂ©ticos y BioquĂmicos. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Centro de Estudios FotosintĂ©ticos y BioquĂmicos; ArgentinaFil: Luciani, Marianela Dana. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Centro de Estudios FotosintĂ©ticos y BioquĂmicos. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Centro de Estudios FotosintĂ©ticos y BioquĂmicos; ArgentinaFil: Pezza, Alejandro. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Centro de Estudios FotosintĂ©ticos y BioquĂmicos. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Centro de Estudios FotosintĂ©ticos y BioquĂmicos; ArgentinaFil: Casati, Paula. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Centro de Estudios FotosintĂ©ticos y BioquĂmicos. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Centro de Estudios FotosintĂ©ticos y BioquĂmicos; Argentin
Tomato near isogenic lines to unravel the genetic diversity of S. pimpinellifolium LA0722 for fruit quality and shelf life breeding
The introgression of genes from the wild species S. pimpinellifolium has the potential to improve tomato commercial varieties for numerous fruit quality traits. One of particular interest for fresh-market tomatoes is long shelf life (SL). Twenty-two near isogenic lines (NILs) were developed in three to four backcrosses using S. pimpinellifolium accession LA0722 as the donor parent, based on phenotypic selection for long SL and using a set of 28 SSRs for marker assisted selection. A total of 30 QTLs for fruit quality were found and 18 were subsequently validated in previous generations. A two year trial of the NILs homozygous for the LA0722 introgressions showed several novel QTLs. Fruit quality QTLs revealed an increased effect promoted by LA0722 alleles. A SL QTL was found on chromosome 9 and was consistent both years. A wild introgression on chromosome 3 showed a stable QTL for increased firmness and for yellow fruits. Therefore, the wild introgressions provide a source of variation with positive effects in fruit traits of commercial value. While obtaining new varieties, this strategy provided an effective method that integrates the QTL analysis and the prediction of positive alleles in wild germplasm.Fil: Di Giacomo, Melisa. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de Investigaciones en Ciencias Agrarias de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Instituto de Investigaciones en Ciencias Agrarias de Rosario; ArgentinaFil: Luciani, Marianela Dana. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de Investigaciones en Ciencias Agrarias de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Instituto de Investigaciones en Ciencias Agrarias de Rosario; ArgentinaFil: Cambiaso, Vladimir. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de Investigaciones en Ciencias Agrarias de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Instituto de Investigaciones en Ciencias Agrarias de Rosario; ArgentinaFil: Zorzoli, Roxana. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Departamento de BiologĂa. Cátedra de GenĂ©tica; ArgentinaFil: RodrĂguez, Gustavo RubĂ©n. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de Investigaciones en Ciencias Agrarias de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Instituto de Investigaciones en Ciencias Agrarias de Rosario; ArgentinaFil: Pereira Da Costa, Javier Hernán. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de Investigaciones en Ciencias Agrarias de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Instituto de Investigaciones en Ciencias Agrarias de Rosario; Argentin