DArT whole genome profiling provides insights on the evolution and taxonomy of edible Banana (Musa spp.)

TitleDArT whole genome profiling provides insights on the evolution and taxonomy of edible Banana (Musa spp.)
Publication TypeJournal Article
Year of Publication2016
AuthorsSardos J., Perrier X., Doležel J., Hřibová E., Christelová P., Van den Houwe I., Kilian A., Roux N.
JournalAnnals of Botany
Volume118
Start Page1269
Issue7
Paginationmcw170
ISSN0305-7364, 1095-8290
KeywordsBanana, Classification, DArT, domestication, Musa acuminata, Musa balbisiana, Musa spp., taxonomy
Abstract

Background and Aims Dessert and cooking bananas are vegetatively propagated crops of great importance for both the subsistence and the livelihood of people in developing countries. A wide diversity of diploid and triploid cultivars including AA, AB, AS, AT, AAA, AAB, ABB, AAS and AAT genomic constitutions exists. Within each of this genome groups, cultivars are classified into subgroups that are reported to correspond to varieties clonally derived from each other after a single sexual event. The number of those founding events at the basis of the diversity of bananas is a matter of debate. Methods We analysed a large panel of 575 accessions, 94 wild relatives and 481 cultivated accessions belonging to the section Musa with a set of 498 DArT markers previously developed. Key Results DArT appeared successful and accurate to describe Musa diversity and help in the resolution of cultivated banana genome constitution and taxonomy, and highlighted discrepancies in the acknowledged classification of some accessions. This study also argues for at least two centres of domestication corresponding to South-East Asia and New Guinea, respectively. Banana domestication in New Guinea probably followed different schemes that those previously reported where hybridization underpins the emergence of edible banana. In addition, our results suggest that not all wild ancestors of bananas are known, especially in M. acuminata subspecies. We also estimate the extent of the two consecutive bottlenecks in edible bananas by evaluating the number of sexual founding events underlying our sets of edible diploids and triploids, respectively. Conclusions The attribution of clone identity to each sample of the sets allowed the detection of subgroups represented by several sets of clones. Although morphological characterization of some of the accessions is needed to correct potentially erroneous classifications, some of the subgroups seem polyclonal.

URLhttp://aob.oxfordjournals.org/content/early/2016/08/31/aob.mcw170
DOI10.1093/aob/mcw170
Showing 40 of 567 accessions
Accession Name Pictures Accession number Species / Group SubSpecies / SubGroup Origin Collection Available for distribution
Cacambou ITC0058 ABB subgr. Bluggoe Unknown ITC
Kluai Tiparot ITC0652 ABB Unknown Unknown ITC
Pisang Saripipi ITC0693 AAA subgr. Ibota Indonesia ITC
Malaysian Blood ITC0568 AA Unknown Unknown ITC
Safet Velchi ITC0245 AB subgr. Ney Poovan India ITC
Khai Nai On ITC0663 AA Unknown Thailand ITC
Selangor 2 ITC0629 acuminata Unknown Unknown ITC
Figue Pomme Géante ITC0769 AAB subgr. Silk Unknown ITC
Kluai Lep Mu Nang ITC0533 AA Unknown Unknown ITC
Pisang Jaran ITC0678 AA Unknown Indonesia ITC
Pisang Sapon ITC0679 AA Unknown Indonesia ITC
Pa (Musore) no.2 ITC0668 acuminata Unknown Thailand ITC
Balbisiana ITC0342 balbisiana Unknown Unknown ITC
Sena ITC1013 AA Unknown Papua New Guinea ITC
Uyam ITC0819 AA Unknown Papua New Guinea ITC
Wan ITC0948 AA Unknown Papua New Guinea ITC
Chuoi Va Huong ITC1373 AAA Unknown Vietnam ITC
Pisang Kepok ITC0692 ABB Unknown Indonesia ITC
Pisang Kepok Bung ITC0698 ABB Unknown Indonesia ITC
THA018 ITC1067 acuminata Unknown Thailand ITC
Pahang IRFA ITC0070 acuminata Unknown Unknown ITC
Khai Thong Ruang ITC0662 AAA subgr. Ibota Thailand ITC
Namwa Khom ITC0659 ABB subgr. Pisang Awak Thailand ITC
Pisang Palembang ITC0450 AAB subgr. Pisang Kelat Malaysia ITC
Foconah ITC0649 AAB subgr. Pome Unknown ITC
Pisang Madu ITC0258 AA Unknown Unknown ITC
No.110 ITC0413 AA Unknown Thailand ITC
Pisang Bangkahulu ITC0689 AA Unknown Indonesia ITC
Bata Bata ITC0974 AA Unknown Unknown ITC
Type 2 ITC0069 acuminata Unknown Unknown ITC
Balbisiana ITC0545 balbisiana Unknown Unknown ITC
Hom Thong Mokho ITC0671 AAA subgr. Rio Thailand ITC
Ngu ITC1358 AA subgr. Sucrier Vietnam ITC
Pisang Mas ITC1403 AA subgr. Sucrier Unknown ITC
Pisang Lilin ITC1121 AA Unknown Unknown ITC
Sowmuk ITC0266 AA Unknown Unknown ITC
Tuu Gia ITC0610 AA Unknown Unknown ITC
Palang ITC0304 AAA Unknown Unknown ITC
Bira ITC0945 AAB Unknown Papua New Guinea ITC
Foulah 4 ITC0051 ABB Unknown Unknown ITC

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