Adaptive mitochondrial genome functioning in ecologically different farm-impacted natural seedbeds of the endemic blue mussel Mytilus chilensis

2022 ◽  
pp. 100955
Author(s):  
Marco Yévenes ◽  
Gustavo Núñez-Acuña ◽  
Cristian Gallardo-Escárate ◽  
Gonzalo Gajardo
Keyword(s):  
Mitochondrial Genome ◽  
Blue Mussel

scholarly journals A novel mitochondrial genome organization for the blue mussel, Mytilus edulis.

Genetics ◽  
1992 ◽  
Vol 131 (2) ◽  
pp. 397-412 ◽  
Author(s):  
R J Hoffmann ◽  
J L Boore ◽  
W M Brown
Keyword(s):  
Mitochondrial Genome ◽  
Mytilus Edulis ◽  
Blue Mussel ◽  
Trna Genes ◽  
Atpase Subunit ◽  
Transfer Rnas ◽  
Intergenic Sequences ◽  
Complete Set ◽  
Dna Strand ◽  
Reading Frames

Abstract The sequence of 13.9 kilobases (kb) of the 17.1-kb mitochondrial genome of Mytilus edulis has been determined, and the arrangement of all genes has been deduced. Mytilus mitochondrial DNA (mtDNA) contains 37 genes, all of which are transcribed from the same DNA strand. The gene content of Mytilus is typically metazoan in that it includes genes for large and small ribosomal RNAs, for a complete set of transfer RNAs and for 12 proteins. The protein genes encode the cytochrome b apoenzyme, cytochrome c oxidase (CO) subunits I-III, NADH dehydrogenase (ND) subunits 1-6 and 4L, and ATP synthetase (ATPase) subunit 6. No gene for ATPase subunit 8 could be found. The reading frames for the ND1, COI, and COIII genes contain long extensions relative to those genes in other metazoan mtDNAs. There are 23 tRNA genes, one more than previously found in any metazoan mtDNA. The additional tRNA appears to specify methionine, making Mytilus mtDNA unique in having two tRNA(Met) genes. Five lengthy unassigned intergenic sequences are present, four of which vary in length from 79 to 119 nucleotides and the largest of which is 1.2 kb. The base compositions of these are unremarkable and do not differ significantly from that of the remainder of the mtDNA. The arrangement of genes in Mytilus mtDNA is remarkably unlike that found in any other known metazoan mtDNA.

Human mitochondrial genome surgery

2018 ◽  
Vol XIII (3) ◽  
Author(s):  
I.О. Маzunin
Keyword(s):  
Mitochondrial Genome ◽  
Human Mitochondrial Genome
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