Open AccessPlant genome archaeology: evidence for conserved ancestral chromosome segments in dicotyledonous plant species
Author(s) -
Dominguez Isabelle,
Graziano Enrique,
Gebhardt Christiane,
Barakat Abdelali,
Berry Simon,
Arús Pere,
Delseny Michel,
Barnes Stephen
Publication year - 2003
Publication title -
plant biotechnology journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.525
H-Index - 115
eISSN - 1467-7652
pISSN - 1467-7644
DOI - 10.1046/j.1467-7652.2003.00009.x
Subject(s) - synteny , biology , arabidopsis , genome , expressed sequence tag , gene , chromosome , genetics , arabidopsis thaliana , plant species , flowering plant , evolutionary biology , botany , mutant
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.