The sequence of rice chromosomes 11 and 12, rich in disease resistance genes and recent gene duplications.

ABSTRACT:

Background

Rice is an important staple food and, with the smallest cereal genome, serves as a reference species for studies on the evolution of cereals and other grasses. Therefore, decoding its entire genome will be a prerequisite for applied and basic research on this species and all other cereals.

Results

We have determined and analyzed the complete sequences of two of its chromosomes, 11 and 12, which total 55.9 Mb (14.3% of the entire genome length), based on a set of overlapping clones. A total of 5,993 non-transposable element related genes are present on these chromosomes. Among them are 289 disease resistance-like and 28 defense-response genes, a higher proportion of these categories than on any other rice chromosome. A three-Mb segment on both chromosomes resulted

SUBMITTER: Rice Chromosomes 11 and 12 Sequencing Consortia 

PROVIDER: S-EPMC1261165 | biostudies-literature | 2005 Sep

REPOSITORIES: biostudies-literature