Molecular and cytological characterization of the global Musa germplasm collection

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In the present study, flow-cytometric analysis of ploidy level were coupled with the genotyping platform based on SSR markers and analyzed 630 accessions of the genus Musa held at the ITC collection including 49 Reference DNA collection samples (, as well as 27 samples received from Hawaii to enlarge the representation of individual Musa subgroups, and 38 samples collected during the Bioversity International expedition to Indonesia (Sutanto et al. 2016). Altogether, 695 accessions were genotyped, including 327 diploids, 363 triploids and 5 tetraploids.

The extent of genetic diversity among all samples was evaluated using the Nei´s genetic distance coefficient calculation (Nei 1973) and subsequent cluster analysis was done using the Unweighted Pair Group Method with Arithmetic Mean (UPGMA; Michener and Sokal 1957). To enable joint analysis of all ploidy levels (2×, 3× and 4×) the genotypic data was converted into binary (coded by 1/0 = presence/absence) and analyzed as a dominant marker’s record (Weising et al. 2005). Dendrograms were constructed based on the results of UPGMA analysis and visualized in FigTree v1.4.0. The dissimilarity index threshold of 0.25 was used to assess the grouping of the accessions on the dendrogram. Bootstrap support for individual branches was calculated on 1000 replicates and values above 35% (0.35) were used to confirm the fundamental subclustering pattern.

See all accessions used in this study

Showing 40 of 571 accessions
Accession Name Pictures Accession number Species / Group SubSpecies / SubGroup Origin Collection Available for distribution
Uwati ITC0373 AA Unknown Papua New Guinea ITC
Racadag ITC0434 AA Unknown Philippines ITC
Higa ITC0378 acuminata Unknown Indonesia ITC
Musa beccarii ITC1070 beccarii Unknown Unknown ITC
Valery ITC0048 AAA subgr. Cavendish Unknown ITC
Pisang Serun 404 ITC1348 acuminata subsp. malaccensis Unknown ITC
Pisang Serun 400 ITC1349 acuminata subsp. malaccensis Malaysia ITC
Zebrina (G.F.) ITC0966 acuminata subsp. zebrina Unknown ITC
Morong Princesa ITC1150 AA Unknown Unknown ITC
AAcv Rose ITC0712 AA Unknown Indonesia ITC
Balbisiana ITC0080 balbisiana Unknown Unknown ITC
Higa ITC0428 acuminata subsp. banksii Unknown ITC
Sar ITC0898 Fe'i Unknown Papua New Guinea ITC
Malaccensis ITC0250 acuminata subsp. malaccensis Unknown ITC
Diploide EMBRAPA 204 ITC1192 AA Unknown Brazil ITC
Pu-te La-Bum ITC0446 AA Unknown Malaysia ITC
Pisang Pipit ITC0685 AA Unknown Indonesia ITC
Pa (Songkhla) ITC0408 acuminata Unknown Unknown ITC
Kune ITC1068 AAB subgr. Laknao Unknown ITC
Pisang Kermian ITC0437 AA Unknown Malaysia ITC
FHIA-17 ITC1264 AAAA Unknown Nigeria ITC
Muracho ITC0036 AAB Unknown Philippines ITC
Maiden Plantain ITC0322 AAB subgr. Plantain Unknown ITC
Binaktong ITC1181 AA Unknown Unknown ITC
Kupulik ITC0909 AAB Unknown Papua New Guinea ITC
Kluai namwa khom ITC1304 ABB Unknown Unknown ITC
Balbisiana (10852) ITC0094 balbisiana Unknown Unknown ITC
Banksii ITC0341 acuminata subsp. banksii Unknown ITC
Morong Princesa ITC0310 AA subgr. Pisang Jari Buaya Philippines ITC
Tavoy ITC0072 acuminata subsp. burmannica Unknown ITC
Blue Java ITC0361 ABB subgr. Ney Mannan Unknown ITC
Sport of Silk ITC1222 AAB subgr. Silk Tanzania ITC
Pisang Mas ITC0653 AA subgr. Sucrier Unknown ITC
Banksii ITC0453 acuminata subsp. banksii Unknown ITC
Mambee Thu ITC0612 AA Unknown Unknown ITC
Pisang Bakar ITC1064 AAA subgr. Ambon Indonesia ITC
Cameroun ITC0246 balbisiana Unknown Unknown ITC
Dwarf Cavendish ITC0002 AAA subgr. Cavendish Unknown ITC
Pisang Masak Hijau ITC0340 AAA subgr. Cavendish Unknown ITC
Chibulangombe ITC0138 AAA subgr. Mutika/Lujugira Unknown ITC