Abstract:
:Mitochondrial intron content is variable in the yeast Kluyveromyces lactis. Strains can be divided into three classes depending on the structure of the cytochrome oxidase subunit 1 (COX1) gene: (1) those containing intron K1 cox1.1, (2) those containing K1 cox1.2, 3 and 4 and, (3) those that contain all four introns. In addition, strains belonging to the first class (designated Type B strains), have an altered mitochondrial gene order relative to strains from classes (2) and (3) (Type A, Hardy et al. 1989). Crossing experiments reveal that K1 cox1.1 (a group II intron) transfers at high frequency (89%) to mitochondrial genomes lacking this intron. By contrast, the mobility of the remaining introns (all group I) is of the order of 7%.
journal_name
Curr Genetjournal_title
Current geneticsauthors
Skelly PJ,Hardy CM,Clark-Walker GDdoi
10.1007/BF00312773subject
Has Abstractpub_date
1991-07-01 00:00:00pages
115-20issue
1-2eissn
0172-8083issn
1432-0983journal_volume
20pub_type
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