- Seminars - maillist.psb.ugent.be

PSB event reminder
by contact＠psb.vib-ugent.be 27 Jun '13

27 Jun '13

Calendar Name: seminars Scheduled for: Thursday, June 27 2013, 11:00 - 12:30 Event text: Dr Delphine Fleury Australian Centre for Plant Functional Genomics University of Adelaide-Waite campus Glen Osmond AUSTRALIA Details: �Genetic dissection of drought tolerance in wheat� ABSTRACT Tolerance to drought is a quantitative trait, with a complex phenotype, often confounded by plant phenology. Breeding for drought tolerance is further complicated since several types of abiotic stress, such as high temperatures, high irradiance and nutrient toxicities or deficiencies can challenge crop plants simultaneously. There are additional problems in investigating the genomics of drought tolerance in wheat: most pathways and candidates genes are unknown and progress in genomics and gene cloning had been slowed due to the size (16,000 Mb) and the complexity of the genome (hexaploid). A research program for increasing drought tolerance of wheat should tackle the problem in a multi-disciplinary approach, considering interaction between multiple stresses and plant phenology, and integrating the physiological dissection of drought tolerance traits and the genetic and genomics tools, such as quantitative trait loci (QTL), microarrays and transgenic crops. The strategy developed at the ACPFG target a specific environment and select appropriate germplasms adapted to the chosen environment based on extensive definition of the morpho-physiological and molecular mechanisms of tolerance of the parents. Traditional genetics and recent omics tools are used to create structured populations and develop models for QTL analysis and positional cloning.

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PSB event reminder
by contact＠psb.vib-ugent.be 25 Jun '13

25 Jun '13

Calendar Name: seminars Scheduled for: Thursday, June 27 2013, 11:00 - 12:30 Event text: Dr Delphine Fleury Australian Centre for Plant Functional Genomics University of Adelaide-Waite campus Glen Osmond AUSTRALIA Details: �Genetic dissection of drought tolerance in wheat� ABSTRACT Tolerance to drought is a quantitative trait, with a complex phenotype, often confounded by plant phenology. Breeding for drought tolerance is further complicated since several types of abiotic stress, such as high temperatures, high irradiance and nutrient toxicities or deficiencies can challenge crop plants simultaneously. There are additional problems in investigating the genomics of drought tolerance in wheat: most pathways and candidates genes are unknown and progress in genomics and gene cloning had been slowed due to the size (16,000 Mb) and the complexity of the genome (hexaploid). A research program for increasing drought tolerance of wheat should tackle the problem in a multi-disciplinary approach, considering interaction between multiple stresses and plant phenology, and integrating the physiological dissection of drought tolerance traits and the genetic and genomics tools, such as quantitative trait loci (QTL), microarrays and transgenic crops. The strategy developed at the ACPFG target a specific environment and select appropriate germplasms adapted to the chosen environment based on extensive definition of the morpho-physiological and molecular mechanisms of tolerance of the parents. Traditional genetics and recent omics tools are used to create structured populations and develop models for QTL analysis and positional cloning.

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Seminar Prof Masaaki Umeda & Dr Naoki Takahashi on Tuesday, July 2 at 2 pm
by Delphine Verspeel 21 Jun '13

21 Jun '13

You are receiving this e-mail because you subscribed to our seminars announcements and reminders service at https://maillist.psb.ugent.be/mailman/listinfo/seminars . If you do not wish to receive this information anymore, please unsubscribe from future mailings at https://maillist.psb.ugent.be/mailman/options/seminars . cid:946540515@15122008-0D1CPSBcid:946540515@15122008-0D23 VIB - Department of Plant Systems Biology Technologiepark 927 B - 9052 Gent/Zwijnaarde Phone: +32 9 33 13 800 Fax: +32 9 33 13 809 Http://www.psb.vib-ugent.be

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Seminar Prof Klaas Van Wijk on Monday, July 1 at 2 pm
by Delphine Verspeel 21 Jun '13

21 Jun '13

You are receiving this e-mail because you subscribed to our seminars announcements and reminders service at https://maillist.psb.ugent.be/mailman/listinfo/seminars . If you do not wish to receive this information anymore, please unsubscribe from future mailings at https://maillist.psb.ugent.be/mailman/options/seminars . cid:946540515@15122008-0D1CPSBcid:946540515@15122008-0D23 VIB - Department of Plant Systems Biology Technologiepark 927 B - 9052 Gent/Zwijnaarde Phone: +32 9 33 13 800 Fax: +32 9 33 13 809 Http://www.psb.vib-ugent.be

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Seminar Dr Delphine Fleury on Thursday, June 27 at 11 am
by Delphine Verspeel 17 Jun '13

17 Jun '13

You are receiving this e-mail because you subscribed to our seminars announcements and reminders service at https://maillist.psb.ugent.be/mailman/listinfo/seminars . If you do not wish to receive this information anymore, please unsubscribe from future mailings at https://maillist.psb.ugent.be/mailman/options/seminars . cid:946540515@15122008-0D1CPSBcid:946540515@15122008-0D23 VIB - Department of Plant Systems Biology Technologiepark 927 B - 9052 Gent/Zwijnaarde Phone: +32 9 33 13 800 Fax: +32 9 33 13 809 Http://www.psb.vib-ugent.be

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PSB event reminder
by contact＠psb.vib-ugent.be 13 Jun '13

13 Jun '13

Calendar Name: seminars Scheduled for: Thursday, June 13 2013, 11:00 - 12:30 Event text: Prof Philip Gilmartin Plant Molecular Genetics Faculty of Science University of East Anglia Norwich Norfolk UNITED KINGDOM Details: �Floral heteromorphy in Primula: genetics, genomics and gene identification� ABSTRACT J Li1, 2 . M. Webster1, 2, M. Smith1, 2, J. Cocker1, 2, O. Kent1, 2, J. Wright3, D. Swarbreck3, M. Caccamo3, P. M. Gilmartin1, 2 University of East Anglia 1, John Innes Centre 2 and The Genome Analysis Centre 3, Norwich Research Park, Norwich, UK. Floral heteromorphy is an out-breeding mechanism that is characteristic of, although not limited to, the Primulaceae. The phenomenon was described in detail by Charles Darwin, but first documented over a century earlier. In Primula species, individuals develop one of two forms of flower, known as pin and thrum. Pin flowers are characterised by a long style that presents the stigmatic surface at the mouth of the flower, and contain anthers attached half way down the inner wall of the corolla tube. Thrum flowers have a short style. half the height of that found in pin flowers, and anthers attached to the inner corolla wall at the mouth of the flower. This reciprocal positioning of male and female reproductive structures promotes insect-mediated cross pollination. These developmental characteristics, and other features of floral heteromorphy, including differential pollens size, as well as a sporophytic self-incompatibility system, are controlled by a co-adapted linkage group known as the S locus. Pin plants are homozygous recessive s/s; thrum pants are heterozygous S/s. With the objective of identifying the genes at the S locus that control style length, anther height and pollen size, we have taken a multifaceted approach involving classical genetics, molecular genetics, transcriptomics and genomics. We have identified and characterised a number of genes and polymorphic markers, as well as developmental mutations that are linked to the S locus. Using these sequences and S locus-linked mutant phenotypes we have developed a classical genetic linkage map in Primula vulgaris, spanning the Primula S locus and delineated by flanking markers. Subsequent construction and screening of BAC libraries has enabled us to generate a BAC contig spanning the S locus and to identify pin and thrum specific BACs. Transcriptomic analysis of pin and thrum plants has identified morph specific floral transcripts, and transcriptomic and genomic analyses of linked mutations, including Oakleaf, sepaloid and Hose in Hose has been used to probe the molecular basis of these phenotypes. In addition to these analyses we have undertaken de novo genome sequencing of Primula vulgaris to generate a reference genome and have used genome sequencing of individual parents and pools of pin and thrum progeny to define polymorphic markers surrounding the S locus. Comparative genomic analyses are underway based on de novo sequencing of the four additional UK native species; P. veris, P. elatior, P. farinosa and P. scotica. We have, in parallel, undertaken a large scale of plants derived from fast neutron bombarded P. veris seed to identify long and short homostyle as well as self compatible mutants. We will present our most recent work arising from these studies to highlight progress towards identifying the genes that underpin Darwin�s descriptions of this breeding system.

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PSB event reminder
by contact＠psb.vib-ugent.be 11 Jun '13

11 Jun '13

Calendar Name: seminars Scheduled for: Thursday, June 13 2013, 11:00 - 12:30 Event text: Prof Philip Gilmartin Plant Molecular Genetics Faculty of Science University of East Anglia Norwich Norfolk UNITED KINGDOM Details: �Floral heteromorphy in Primula: genetics, genomics and gene identification� ABSTRACT J Li1, 2 . M. Webster1, 2, M. Smith1, 2, J. Cocker1, 2, O. Kent1, 2, J. Wright3, D. Swarbreck3, M. Caccamo3, P. M. Gilmartin1, 2 University of East Anglia 1, John Innes Centre 2 and The Genome Analysis Centre 3, Norwich Research Park, Norwich, UK. Floral heteromorphy is an out-breeding mechanism that is characteristic of, although not limited to, the Primulaceae. The phenomenon was described in detail by Charles Darwin, but first documented over a century earlier. In Primula species, individuals develop one of two forms of flower, known as pin and thrum. Pin flowers are characterised by a long style that presents the stigmatic surface at the mouth of the flower, and contain anthers attached half way down the inner wall of the corolla tube. Thrum flowers have a short style. half the height of that found in pin flowers, and anthers attached to the inner corolla wall at the mouth of the flower. This reciprocal positioning of male and female reproductive structures promotes insect-mediated cross pollination. These developmental characteristics, and other features of floral heteromorphy, including differential pollens size, as well as a sporophytic self-incompatibility system, are controlled by a co-adapted linkage group known as the S locus. Pin plants are homozygous recessive s/s; thrum pants are heterozygous S/s. With the objective of identifying the genes at the S locus that control style length, anther height and pollen size, we have taken a multifaceted approach involving classical genetics, molecular genetics, transcriptomics and genomics. We have identified and characterised a number of genes and polymorphic markers, as well as developmental mutations that are linked to the S locus. Using these sequences and S locus-linked mutant phenotypes we have developed a classical genetic linkage map in Primula vulgaris, spanning the Primula S locus and delineated by flanking markers. Subsequent construction and screening of BAC libraries has enabled us to generate a BAC contig spanning the S locus and to identify pin and thrum specific BACs. Transcriptomic analysis of pin and thrum plants has identified morph specific floral transcripts, and transcriptomic and genomic analyses of linked mutations, including Oakleaf, sepaloid and Hose in Hose has been used to probe the molecular basis of these phenotypes. In addition to these analyses we have undertaken de novo genome sequencing of Primula vulgaris to generate a reference genome and have used genome sequencing of individual parents and pools of pin and thrum progeny to define polymorphic markers surrounding the S locus. Comparative genomic analyses are underway based on de novo sequencing of the four additional UK native species; P. veris, P. elatior, P. farinosa and P. scotica. We have, in parallel, undertaken a large scale of plants derived from fast neutron bombarded P. veris seed to identify long and short homostyle as well as self compatible mutants. We will present our most recent work arising from these studies to highlight progress towards identifying the genes that underpin Darwin�s descriptions of this breeding system.

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PSB event reminder
by contact＠psb.vib-ugent.be 06 Jun '13

06 Jun '13

Calendar Name: seminars Scheduled for: Thursday, June 6 2013, 11:00 - 12:30 Event text: Dr Markus Teige Department of Molecular Systems Biology (MOSYS) Vienna University Vienna AUSTRIA Details: "Multiple phosphorylations by multiple kinases at multiple locations- how to keep track on cellular signalling in plants?" ABSTRACT Protein phosphorylation is one key regulatory principle in all living organisms: about 30% of all cellular proteins are - at least occasionally - phosphorylated and sequenced genomes encode about 500 to 1000 protein kinases. Moreover, some proteins can be phosphorylated by different kinases at multiple sites, which makes it even more challenging to keep an overview on these regulatory processes. One approach, which helps to get an overview on these diverse processes is to ask where and when these phosphorylation events occur. Many of them will be triggered by specific signals and also take place only in distinct subcellular localizations. Therefore I will start with the discussion of protein kinases, which are involved in the (salt-) stress response at different membrane systems, but which are also active in the cytosol and the nucleus. At all places, there is cross-talk with other signalling pathways and different pathways merge at targets, which are phosphorylated by different kinases. I will present a bZIP transcription factor as one example to illustrate how this could serve as integration point of different signalling pathways, which are used in response to different stresses.

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Seminar Prof Philip Gilmartin on Thursday, June 13 at 11 am
by Delphine Verspeel 05 Jun '13

05 Jun '13

You are receiving this e-mail because you subscribed to our seminars announcements and reminders service at https://maillist.psb.ugent.be/mailman/listinfo/seminars . If you do not wish to receive this information anymore, please unsubscribe from future mailings at https://maillist.psb.ugent.be/mailman/options/seminars . cid:946540515@15122008-0D1CPSBcid:946540515@15122008-0D23 VIB - Department of Plant Systems Biology Technologiepark 927 B - 9052 Gent/Zwijnaarde Phone: +32 9 33 13 800 Fax: +32 9 33 13 809 Http://www.psb.vib-ugent.be

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PSB event reminder
by contact＠psb.vib-ugent.be 04 Jun '13

04 Jun '13

Calendar Name: seminars Scheduled for: Thursday, June 6 2013, 11:00 - 12:30 Event text: Dr Markus Teige Department of Molecular Systems Biology (MOSYS) Vienna University Vienna AUSTRIA Details: "Multiple phosphorylations by multiple kinases at multiple locations- how to keep track on cellular signalling in plants?" ABSTRACT Protein phosphorylation is one key regulatory principle in all living organisms: about 30% of all cellular proteins are - at least occasionally - phosphorylated and sequenced genomes encode about 500 to 1000 protein kinases. Moreover, some proteins can be phosphorylated by different kinases at multiple sites, which makes it even more challenging to keep an overview on these regulatory processes. One approach, which helps to get an overview on these diverse processes is to ask where and when these phosphorylation events occur. Many of them will be triggered by specific signals and also take place only in distinct subcellular localizations. Therefore I will start with the discussion of protein kinases, which are involved in the (salt-) stress response at different membrane systems, but which are also active in the cytosol and the nucleus. At all places, there is cross-talk with other signalling pathways and different pathways merge at targets, which are phosphorylated by different kinases. I will present a bZIP transcription factor as one example to illustrate how this could serve as integration point of different signalling pathways, which are used in response to different stresses.

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