SEEDs for the FUTURE: developing barley lines with improved yield and grain quality under drought stress during seed filling.
Project Coordinator
phone: +49-39482-5 172
fax: +49-39482-5 500
Email: srinivas@ipk-gatersleben.de
GABI-GRAIN is a BMBF-funded research project (2007 – 2010) that is carried out in tight cooperation between several academic institutes and industrial partners:
Drought is one of the major environmental constraints that severely limit crop productivity. Yield safety could be improved if future breeding attempts which include the new knowledge acquired on the processes determining developmental programs that enhance yield stability and improve grain quality under terminal drought.
The aim of this application-oriented project is to use barley as a model crop to explore natural genetic variation among (i) elite breeding material, (ii) barley core collection gene bank material and (iii) nearly 120 introgression lines covering two populations with wild barley accessions as donors in an attempt to understand mechanisms of reaching enhanced yield stability and uncompromised seed quality under drought stress during seed filling.
Expected deliverables are:(a)increased knowledge on regulatory networks underlying yield/quality parameters under environmental stress conditions to aid knowledge-based breeding with general relevance for the improvement of seed traits; (b) verified candidate genes for the development of different drought tolerant GMO crops; (c) trait-associated DNA and protein markers for marker-assisted selection (MAS) and (d) development of large F1 populations of DH barley lines as well as GM plants with modified ABA responses for minimized yield loss under drought stress. To achieve the above mentioned project aims five major modules were derived.
Module 1: Exploring natural genetic variation for improved yield and better remobilization capacities under drought stress during seed filling (IPK partners and NORDSAAT-SAATZUCHT) and production of large DH populations as a new resource of breeding material for improved seed quality under terminal drought (KWS LOCHOW )
Module 2: Identification of key metabolites, proteins and enzymes in the regulatory networks determining seed filling under drought (IPK partners, MLU and MPI-Golm)
Module 3: Identifying key regulators influencing broad adaptation and yield stability under drought stress through transcriptome analysis (IPK partners)
Module 4: Analysis of expression (e) QTLs and genetic diversity in candidate genes for grain yield and quality under drought (IPK partners)
Module 5: A transgenic strategy for improved seed filling under drought stress by altering ABA metabolism in seeds (IPK partners)
