Download - Maize
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Strategic Initiative 8: Seeds of discovery<br />
Genesis and justification<br />
Accelerated developments in genomics, bioinformatics and phenotyping enable scientists, for the first<br />
time in history, to begin to unlock the black box of native genetic diversity of major crops. Holding in<br />
trust the most important germplasm bank for tropical maize, MAIZE tackles this challenge in<br />
collaboration with the most advanced public and private sector institutes.<br />
Outcomes<br />
Enable researchers to mobilize the full potential of maize biodiversity in breeding programs worldwide.<br />
This will help speed breeding gains and enable the world community to counteract the accumulating<br />
effects of climate change and scarcities of water, land and nutrients.<br />
Methods<br />
Apply next generation sequencing technologies and state‐of‐the‐art precision phenotyping to the<br />
most relevant cross‐section of native maize genetic diversity.<br />
Develop Web‐based user‐friendly platforms.<br />
Promote the flow of useful diversity into research and breeding programs worldwide via access to<br />
seeds of well‐characterized accessions.<br />
Capture into elite backgrounds both large‐effect QTL alleles via marker‐assisted introgression and<br />
small‐effect alleles via rapid‐cycle genomic selection.<br />
Outstanding innovations<br />
First attempt to comprehensively characterize the global heritage of maize genetic resources to<br />
promote flow of useful diversity into research and breeding programs.<br />
A world‐first breeder‐ and researcher‐friendly “catalog” for the CIMMYT‐ and IITA‐held maize seed<br />
“libraries”, transforming them from black box germplasm banks to accessible trait, gene and marker<br />
libraries.<br />
Strategic Initiative 9: New tools and methods for NARSs and SMEs<br />
Genesis and justification<br />
New breeding tools, notably high‐density genotyping, doubled haploids and improved informatics, are<br />
rapidly increasing rates of genetic gain in the breeding programs of multinational seed companies.<br />
Responding to the demand from NARSs and local seed companies, this Initiative will provide them with<br />
access to these tools to accelerate breeding progress targeted at poorer farmers. Collaborations with<br />
the multinationals and ARIs have already been developed to enable this Initiative, with CIMMYT and IITA<br />
acting as “honest brokers” that respect intellectual property and trade secrets while developing and<br />
making prioritized non‐proprietary know‐how and tools widely available. This Initiative aligns and often<br />
pioneers approaches that are then scaled up by the Genomics and Integrated Breeding Service (GIBS),<br />
for use by other cross‐pollinated and hybrid crops with lesser importance and hence lesser investment.<br />
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