The banana (Musa acuminata) genome and the evolution of monocotyledonous plants.
Bananas (Musa spp.), including dessert and cooking types, are giant perennial monocotyledonous herbs of the order Zingiberales, a sister group to the well-studied Poales, which include cereals. Bananas are vital for food security in many tropical and subtropical countries and the most popular fruit in industrialized countries. The Musa domestication process started some 7,000 years ago in Southeast Asia. It involved hybridizations between diverse species and subspecies, fostered by human migrations, and selection of diploid and triploid seedless, parthenocarpic hybrids thereafter widely dispersed by vegetative propagation. Half of the current production relies on somaclones derived from a single triploid genotype (Cavendish). Pests and diseases have gradually become adapted, representing an imminent danger for global banana production. Here we describe the draft sequence of the 523-megabase genome of a Musa acuminata doubled-haploid genotype, providing a crucial stepping-stone for genetic improvement of banana. We detected three rounds of whole-genome duplications in the Musa lineage, independently of those previously described in the Poales lineage and the one we detected in the Arecales lineage. This first monocotyledon high-continuity whole-genome sequence reported outside Poales represents an essential bridge for comparative genome analysis in plants. As such, it clarifies commelinid-monocotyledon phylogenetic relationships, reveals Poaceae-specific features and has led to the discovery of conserved non-coding sequences predating monocotyledon-eudicotyledon divergence.
Centre de coopération Internationale en Recherche Agronomique pour le Développement, UMR AGAP, F-34398 Montpellier, France. angelique.d’hont@cirad.fr
Angélique
A
D'Hont
France
F
Denoeud
Jean-Marc
JM
Aury
Franc-Christophe
FC
Baurens
Françoise
F
Carreel
Olivier
O
Garsmeur
Benjamin
B
Noel
Stéphanie
S
Bocs
Gaëtan
G
Droc
Mathieu
M
Rouard
Corinne
C
Da Silva
Kamel
K
Jabbari
Céline
C
Cardi
Julie
J
Poulain
Marlène
M
Souquet
Karine
K
Labadie
Cyril
C
Jourda
Juliette
J
Lengellé
Marguerite
M
Rodier-Goud
Adriana
A
Alberti
Maria
M
Bernard
Margot
M
Correa
Saravanaraj
S
Ayyampalayam
Michael R
MR
Mckain
Jim
J
Leebens-Mack
Diane
D
Burgess
Mike
M
Freeling
Didier
D
Mbéguié-A-Mbéguié
Matthieu
M
Chabannes
Thomas
T
Wicker
Olivier
O
Panaud
Jose
J
Barbosa
Eva
E
Hribova
Pat
P
Heslop-Harrison
Rémy
R
Habas
Ronan
R
Rivallan
Philippe
P
Francois
Claire
C
Poiron
Andrzej
A
Kilian
Dheema
D
Burthia
Christophe
C
Jenny
Frédéric
F
Bakry
Spencer
S
Brown
Valentin
V
Guignon
Gert
G
Kema
Miguel
M
Dita
Cees
C
Waalwijk
Steeve
S
Joseph
Anne
A
Dievart
Olivier
O
Jaillon
Julie
J
Leclercq
Xavier
X
Argout
Eric
E
Lyons
Ana
A
Almeida
Mouna
M
Jeridi
Jaroslav
J
Dolezel
Nicolas
N
Roux
Ange-Marie
AM
Risterucci
Jean
J
Weissenbach
Manuel
M
Ruiz
Jean-Christophe
JC
Glaszmann
Francis
F
Quétier
Nabila
N
Yahiaoui
Patrick
P
Wincker
D017124:Conserved Sequence / Q000235:genetics; D004251:DNA Transposable Elements / Q000235:genetics; D019143:Evolution, Molecular; D020440:Gene Duplication / Q000235:genetics; D017343:Genes, Plant / Q000235:genetics; D018745:Genome, Plant / Q000235:genetics*; D005838:Genotype; D006238:Haploidy; D008969:Molecular Sequence Data; D028521:Musa / Q000145:classification / Q000235:genetics*; D010802:Phylogeny
D004251:DNA Transposable Elements