“…These species, like barley, are diploid, and the genomes all include the relatively similar sets of genes required for the plant life cycle-both barley and A. thaliana can be regarded as having ephemeral, annual life cycles. Sequencing of complete cDNA libraries (giving expressed sequence tags or ESTs) is now being completed in rice (HAVUKKALA et al 1995;SASAKI et al 1994) and A. thaliana (DELSENY et al 1996), with some 20,000 partial gene sequences available from each species. Many genes are being found in common between A .…”