News

NEWS

  • Wheat phenotyping workshop

    The International Maize and Wheat Improvement Center (CIMMYT) extends a cordial invitation to participate in the training workshop "Wheat phenotyping for the identification of germplasm with high yield potential and tolerance to drought and heat". This will be held in CIMMYT HQ, Texcoco, State of Mexico, on September 28th, 2018 (from 9:00 – 14:00 hrs) as part of the II Plant Breeding Symposium México 2018 (https://trasmejoragen.wixsite.com/inicio) The objective of this workshop is to train participants in the phenotypic characterization of wheat germplasm. Research themes include: climate change; priority characteristics for wheat for Mexico; phenotyping of genetically diverse materials and in the ...

  • II Plant Breeding Symposium Mexico 2018

    MasAgro Biodiversity announces the II Plant Breeding Symposium Mexico 2018 which will be held on September 6 and 7, 2018 at the CIMMYT HQ, Texcoco. Mexico. This event belongs to the series of DuPont Plant Sciences Symposia. For more information please visit the website:https://trasmejoragen.wixsite.com/inicio

  • New video: Crop biodiversity for healthy, nutritious livelihoods

    Erratic weather, poor soil health, and resource shortages keep millions of maize and wheat farmers in developing countries from growing enough to feed their households and communities or to harvest a surplus to sell.

  • 3rd KDSmart app workshop

    The International Maize and Wheat Improvement Center (CIMMYT) extends a cordial invitation to participate in the training workshop on the use of the KDSmart app. This will be held in Texcoco, State of Mexico, on December 20, 2017 (from 9:00 - 17:00 hrs).

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New videos of Seed of Discovery Videos
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Catalogue

PRODUCTS CATALOGUE

PRODUCTS CATALOGUE

MasAgro Biodiversity, a component of the Sustainable Modernization of Traditional Agriculture (MasAgro) program, focuses on the utilization and conservation of valuable genetic resources with genetic diversity protected in germplasm banks. This program has the purpose of accelerating the development of Varieties of maize and wheat that can meet the nutrition and nutritional demands of a growing population, facing the challenges of climate change.

By characterizing the genetic configuration of CIMMYT germplasm bank collections, the evaluation of priority characteristics – such as drought tolerance, high temperatures and some diseases – and the development of bioinformatics tools that streamline its analysis, MasAgro Biodiversity has Generated a “platform for the utilization of genetic resources” of maize and wheat.

This platform puts several products at the disposal of the scientific community. MasAgro Biodiversity also offers some services in order to promote equity in access and benefits of the use of maize and wheat diversity.

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  • Wheat Pre-breeding Lines with Good Heat Tolerance

    These are pre-breeding lines derived from top-crosses using one germplasm bank accession crossed to an elite line, and then crossed to a second elite line. The accessions were selected as promising sources for use in breeding for heat tolerance, while CIMMYT wheat breeders recommended the elite lines as the best available lines. The pre-breeding lines were selected based on preliminary yield trials in 2015-16, and further identified based on field trials under heat stress and well-irrigated conditions in 2016-17 in Mexico. Additionally, mild selection was performed against yellow rust susceptibility and serious agronomic weaknesses.

    Product details and features

    1. List of pre-breeding lines with phenotypic data is available including checks, and elite lines as reference materials. Five pre-breeding lines had higher grain yield (5.9-12.3 %) than the best check varieties under heat stress. One pre-breeding line had significantly higher yield than checks Vorobey and Sokoll and was at par with check Baj#1. Under irrigated conditions, the same pre-breeding lines had significantly higher yield than Baj#1 and Sokoll and were at par with Vorobey.
      https://data.cimmyt.org/dataset.xhtml?persistentId=hdl:11529/11038
    2. Genotypic data (available November 2017)
    3. Ability to sort by various traits, e.g. days to heading (DH), days to maturity (DM), Height (H), Yield (Y) (available November 2017)

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  • Comments

    These materials are suited for research or for large breeding programs interested in exploring exotic germplasm sources. These products can be used as heat tolerant bridging germplasm by interested researchers.

    Availability

    Currently available. Seeds of these entries are available from CIMMYT’s germplasm bank. They can be requested as International wheat pre-breeding nursery-1 (IWPN-1)..

    Primary Users

    Wheat breeders for whom heat tolerance is a crucial priority trait; wheat breeders and geneticists investigating heat tolerance; researchers studying physiological mechanisms of heat tolerance; researchers engaged in gene discovery for heat tolerance.

     

    For more information

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RESEARCH PORTFOLIO

RESEARCH PORTFOLIO

Genetic resources

Genetic resources

Capacity

Capacity

Data

Data

Pre-breeding Germplasm

Pre-breeding Germplasm

Knowledge

Knowledge

Software

Software

PHILOSOPHY OF OUR APPROACH

PHILOSOPHY OF OUR APPROACH

So many accessions, so few data!

Many genebanks resemble libraries that lack sufficiently informative catalogs. The advent of next-generation DNA-sequencing platforms has made it possible to characterize the genetic diversity conserved in entire genebanks.

Information management

Generating new data by itself is insufficient if it cannot be effectively disseminated, queried, summarized, visualized, and analyzed. Data generation, therefore, has to go hand-in-hand with providing intuitive software and analysis tools to deal with the rapidly expanding datasets describing maize and wheat genetic resources.

Pre-breeding

A ‘reformatting’ of the diversity in genebanks into a more breeder-ready format could lower the barriers to mobilize novel genetic variation into breeding programs, which in good part are due to the dependency of gene effects on genetic backgrounds.

Traits with complex genetic architecture

Some of the most important challenges to agriculture need to be addressed by manipulating genetically complex characters controlled by small-effect alleles (yield potential, heat and drought tolerance, etc.).

Collecting germplasm.

The availability of sufficient numbers of genebank accessions does not appear to be a factor limiting the use of novel genetic variation in breeding programs, and a new initiative will secure the global network of genebanks of humanity’s major food crops for future generations.