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LUSH SPIKE SIGNED

Genetic and Molecular Determinants of Spikelet Survival in Cereal Crops

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EC-Contrib. €

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Partnership

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Project "LUSH SPIKE" data sheet

The following table provides information about the project.

Coordinator
LEIBNIZ - INSTITUT FUER PFLANZENGENETIK UND KULTURPFLANZENFORSCHUNG 

Organization address
address: CORRENSTRASSE 3
city: SEELAND OT GATERSLEBEN
postcode: 6466
website: www.ipk-gatersleben.de

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 2˙000˙000 €
 EC max contribution 2˙000˙000 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-CoG
 Funding Scheme ERC-COG
 Starting year 2016
 Duration (year-month-day) from 2016-07-01   to  2021-06-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    LEIBNIZ - INSTITUT FUER PFLANZENGENETIK UND KULTURPFLANZENFORSCHUNG DE (SEELAND OT GATERSLEBEN) coordinator 2˙000˙000.00

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 Project objective

Meeting the forecasted world demand for food remains a crucial challenge for plant scientists in this century. One promising avenue for improving grain yield of cereal crops, including wheat and barley, involves reducing spikelet mortality. Spikelets, the grain-bearing units of cereal spikes, usually form in excess and subsequently abort during development; increased spikelet survival is linked to increased numbers of grains per spike. Therefore, reducing spikelet mortality is an intriguing approach to improve grain yield. In barley, the number of spikelets per spike at the awn primordium (AP) stage represents the maximum yield potential per spike. After the AP stage, significant spikelet mortality results in fewer grains per spike. Our previous results clearly indicated that spikelet survival in barley is highly genetically controlled (broad-sense heritability >0.80) and that the period from AP to tipping represents the most critical pre-anthesis phase related to spikelet reduction and grain yield per spike. However, the underlying genetic and molecular determinants of spikelet survival remain to be discovered. I therefore propose this ambitious research program with an emphasis on using available genetic resources. Our specific aims during the LUSH SPIKE project are to: (i) discover quantitative trait loci (QTL) for spikelet survival and grain number per spike and validate these QTL in bi-parental doubled-haploid mapping populations, (ii) isolate and functionally characterize Mendelized QTL using a map-based approach, (iii) reveal gene regulatory networks determining spikelet survival during the critical spike growth period from AP to heading, and (iv) elucidate spatio-temporal patterns of metabolite and phytohormone distributions in spike and spikelet sections during the critical growth period, using mass spectrometric imaging. The results we obtain will advance our understanding of how to improve yields of cereal crops.

 Publications

year authors and title journal last update
List of publications.
2017 Ahmad M. Alqudah, Thorsten Schnurbusch
Heading Date Is Not Flowering Time in Spring Barley
published pages: , ISSN: 1664-462X, DOI: 10.3389/fpls.2017.00896
Frontiers in Plant Science 8 2019-06-18
2019 Ravi Koppolu, Thorsten Schnurbusch
Developmental pathways for shaping spike inflorescence architecture in barley and wheat
published pages: , ISSN: 1672-9072, DOI: 10.1111/jipb.12771
Journal of Integrative Plant Biology 2019-03-18

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