Subset

Filling the gaps in gene banks: Collecting, characterizing and phenotyping wild banana relatives of Papua new guinea

Since natural habitats are disappearing fast, there is an urgent need to collect, characterize, and phenotype banana (Musa spp.) crop wild relatives to identify unique genotypes with specific traits that fill the gaps in our gene banks. We report on a collection mission in Papua New Guinea carried out in 2019.

Seed containing bunches were collected from Musa peekelii ssp. angustigemma (N.W.Simmonds) Argent (3), M. schizocarpa N. W. Simmonds (4), M. balbisiana Colla (3), M. acuminata ssp. banksii (F. Muell.) Simmonds (14), M. boman Argent (3), M. ingens Simmonds (2), M. maclayi ssp. maclayi F.Muell. ex Mikl.‐Maclay (1), and M. lolodensis Cheesman (1).

This material, together with the seeds collected during a previous mission in 2017, form the basis for the development of a wild banana seed bank. For characterization and phenotyping, we focused on the most ubiquitous indigenous species of Papua New Guinea: M. acuminata ssp. banksii, the ancestor of most edible bananas. We calculated that the median genomic dissimilarity of the M. acuminata ssp. banksii accessions was 4% and that they differed at least 5% from accessions present in the International Transit Centre, the world's largest banana gene bank. High‐throughput phenotyping revealed drought avoidance strategies with significant differences in root/shoot ratio, soil water content sensitivity, and response towards vapor pressure deficit (VPD). We deliver a proof of principle that the wild diversity is not yet fully covered in the gene banks and that wild M. acuminata ssp. banksii populations contain individuals with unique traits, useful for drought tolerance breeding programs.

Crop
Banana
Number of accessions
8
Creation date
1 December 2020

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Subset creators


Data manager
Eyland David Lab. of Tropical Crop Improvement, KUL, Belgium
Data manager
Breton Catherine Alliance of Bioversity International and CIAT, France
Data manager
Sardos Julie Alliance of Bioversity International and CIAT, France
Data manager
Kallow Simon Lab. of Tropical Crop Improvement, KUL, Belgium/Royal Botanic Gardens Kew, UK
Data manager
Panis Bart Lab. of Tropical Crop Improvement, KUL, Belgium/Alliance of Bioversity International and CIAT, Belgium
Data manager
Swennen Rony Lab. of Tropical Crop Improvement, KUL, Belgium/Bioversity International, Belgium/International Institute of Tropical Agriculture, Tanzania
Data manager
Paofa Janet National Agricultural Research Institute, Papua New Guinea
Data manager
Tardieu François Lab. d’écophysiologie des Plantes sous Stress Environnementaux (LEPSE), France
Data manager
Welcker Claude Lab. d’écophysiologie des Plantes sous Stress Environnementaux (LEPSE), France
Data manager
Janssens Steven B. Meise Botanic Garden, Belgium/Plant Conservation and Population Biology, KUL, Belgium
Data manager
Carpentier Sebastien C. Lab. of Tropical Crop Improvement, KUL, Belgium/Alliance of Bioversity International and CIAT, Belgium

Data and resources


MCPD passport data

MCPD - d734c267-6e88-4d43-802c-475191cce900.xlsx

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List of accessions included in the subset

BEL084Bioversity International Musa Germplasm Transit Centre, Belgium • DOI: 10.18730/9JVGM
BEL084Bioversity International Musa Germplasm Transit Centre, Belgium • DOI: 10.18730/9K3WX
BEL084Bioversity International Musa Germplasm Transit Centre, Belgium • DOI: 10.18730/9K8GX
BEL084Bioversity International Musa Germplasm Transit Centre, Belgium • DOI: 10.18730/9K8V3
BEL084Bioversity International Musa Germplasm Transit Centre, Belgium • DOI: 10.18730/9K8Z7
BEL084Bioversity International Musa Germplasm Transit Centre, Belgium • DOI: 10.18730/9K9Y1
7. ITC0896Musa acuminata subsp. banksii (F.Muell.) N.W.Simmonds • Musa acuminata ssp. banksii • Wild • Papua New Guinea+ Add to my list
BEL084Bioversity International Musa Germplasm Transit Centre, Belgium • DOI: 10.18730/9KSY*
8. ITC0897Musa acuminata subsp. banksii (F.Muell.) N.W.Simmonds • Musa acuminata ssp. banksii • Wild • Papua New Guinea+ Add to my list
BEL084Bioversity International Musa Germplasm Transit Centre, Belgium • DOI: 10.18730/9KTC9