Seminars of the Focus Area Complex Systems

Prof. Dr. C. Beta, Prof. Dr. K. Dethloff, Prof. Dr. R. Engbert, Prof. Dr. M. Holschneider, Prof. Dr. W. Huisinga, Prof. Dr. Ralf Metzler, Prof. Dr. A. Pikovsky, Prof. Dr. S. Reich, Prof. Dr. M. Rosenblum, Prof. Dr. G. Rüdiger, Prof. Dr. T. Scheffer, Prof. Dr. F. Scherbaum, Prof. Dr. J. Selbig, Prof. Dr. F. Spahn

Seminar

Speaker: Alexander Leow, Institute of Biochemistry and Biology of the University of Potsdam

Title: Plant mutant analysis: Image processing for automatic phenotyping * Bioinformatics Affinity Seminar

Time: Wed, Nov 7, 2012, 10am

Place: MPI für Molekulare Pflanzenphysiologie, Room 0.21 in The Box

Abstract:
In contrast to genotyping, phenotyping has not undergone massive speed-up in the past years. This can lead to a bottleneck in the future. Digital image processing can help to accelerate phenotyping. With ongoing improvements in digital imaging affordable consumer cameras can generate high-resolution images. This allows to set up cost-efficient and flexible large-scale experiments without expensive specialized equipment. Here, image processing was used to support genetic studies by the investigation of phenotypic traits. A large number of flowers could be analyzed regarding UV absorption and reflection. Two groups, showing either UV absorption or UV reflection, could be identified. The number of flowers within the groups indicated a promising genetic background with a single recessive gene. As a result further genetic studies were initiated to localize the gene. In addition whole petal images with cellular resolution were investigated. Within these petal images thousands of cells could be segmented. Previous biological results could be verified and new insight could be gained. It could be demonstrated that Arabidopsis thaliana kin13a-3 mutant petals were enlarged compared to the wild-type mainly due to a higher cell number. In contrast Capsella grandiflora petals were larger compared to Capsella rubella due to a combination of increased cell size and cell number. This study demonstrated that image processing indeed can accelerate phenotypic analyses and enables analyses of new depth.

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Past NLD Seminars (1994-2007) & (2008 ...)

Students' seminar: Theoretical Physics, PIK, Modeling & TSA Berlin-Potsdam-Colloquia: PhysGesellschaft Berlin, TU Berlin, Pro Physik, AIP, AEI, MPI-KGF, GFZ, HMI, PIK, AWI, Max Planck Institute for the History of Science, Mathematik, DPG Disputationen, & Vorschau UP

Udo Schwarz, Zentrum für Dynamik komplexer Systeme,
Universität Potsdam, Campus Golm Karl-Liebknecht-Str. 24, 14476 Potsdam, building 28, room 2.107
Phone: (+49-331) 977-1658, Fax : (+49-331) 977-1045

Email: Udo.Schwarz AT uni-potsdam.de

DFG SFB 1294

DFG Sonderforschungsbereich 1294 Data assimilation

DFG SPP 1488

DFG Schwerpunktprogramm 1488 Planetmag


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