Detection of Introns in Eukaryotic Small Subunit Ribosomal RNA Gene Sequences

Table 1

(a) Annotations used to extract intronic sequences.

Annotation	Number
Sequences with both join and introns	2187
Sequences with only introns	512
Sequences with only join	939

(b) Genomic localization of described introns.

Annotation	Number
Mitochondria encoded	50
Nuclear encoded	3560
Chloroplast encoded	36