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Supporting distribution of reference germplasm (Musa) (SP1)

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Academic year: 2021

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Supporting Distribution of Reference

Germplasm (Musa)

(SP1)

Collaborators: J. Dolezel (IEB), I. Hippolyte (CIRAD), C. Jenny (CIRAD), M. Rouard (Bioversity International), N. Roux (Bioversity International),

A mini core collection

Distribution of DNA and Germplasm

52 Accessions of Musa were selected according the following criteria: • To be representative of existing genetic diversity

• To be duplicated at Bioversity International Transit Centre (ITC) • To be designated as ‘in-trust’ collections

• To be used in breeding programmes

DNA samples were deposited at the Musa Genome Resource Centre (MGRC) based at IEB in Olomouc, Czech Republic, where they were stored for further distribution to the Musa research community upon request. The MGRC operates on a cost-recovery basis and the recipients are expected to cover packing and shipment costs.

To receive DNA from the reference collection, a maximum of 1 µg of DNA per accession is provided; this ensures that researchers benefit from this service. DNA is distributed under a simplified MTA, recently developed in collaboration with Bioversity’s Policy Research and Support Unit.

In vitro plantlets (proliferating or rooted) can be distributed for research purposes. Germplasm is available under the terms and conditions of the Standard Material Transfer Agreement (SMTA) to ensure that the germplasm and information related to it remain in the public domain.

The DNA was extracted from leaves of plant material in the CIRAD field collection based at Neufchâteau, Guadeloupe.

Bp 500 400 300 200 M C234567891011121314151617181920212223242628293031323334353637383940414243444546474850 51

The reference material is being genotyped by an independent laboratory, at the Institute of Experimental Botany, Olomouc, Czech Republic, using 22 SSR markers (the same markers used for the genotyping study of 549 Musa accessions)

In addition, in order to assure that the material corresponds to the Bioversity ITC collection, DNA samples from that collection are being genotyped using the same markers.

Quality Control

Fig. 2: PCR with microsatellite marker mMaCIR40

Fig. 1: Species representation among the 52 Accessions

Further information can be found online on the Musagenomics website : http://www.musagenomics.org

Simili radjah (ABB) Pisang Bakar (AAA) Pisang Nangka (AAA) Pisang Mas (AAcv) Gros Michel (AAA) Orishele (AAB) Pisang Klutuk Wulung (M. balbisiana)

Musa ornata Calcutta 4

(M. acuminata)

Diversity

4% 19% 19% 4% 16% 2% 18% 2% 10% 2% 2% 2% AA AAA AAB AB ABB ABBT acum inata AS balbisiana ornata schizocarpa textilis

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