Plant genome archaeology: evidence for conserved ancestral chromosome segments in dicotyledonous plant species.
We have developed genetic maps, based on expressed sequence tags (ESTs) that are homologous to Arabidopsis genes, in four dicotyledonous crop plant species from different families. A comparison of these maps with the physical map of Arabidopsis reveals common genome segments that appear to have been conserved throughout the evolution of the dicots. In the four crop species analysed these segments comprise between 16 and 33% of the Arabidopsis genome. Our findings extend the synteny patterns previously observed only within plant families, and indicate that structural and functional information from the model species will be, at least in part, applicable in crop plants with large genomes.
Dominguez
Isabelle
I
ADVANTA, SES-Europe NV, Industriepark, Soldatenplein Z2 nr 15, B-3300 Tienen, Belgium.
Graziano
Enrique
E
Gebhardt
Christiane
C
Barakat
Abdelali
A
Berry
Simon
S
Arús
Pere
P
Delseny
Michel
M
Barnes
Stephen
S