The Complete Female- and Male-Transmitted Mitochondrial Genome of Meretrix lamarckii

被引:36
作者
Bettinazzi, Stefano [1 ]
Plazzi, Federico [1 ]
Passamonti, Marco [1 ]
机构
[1] Univ Bologna, Dept Biol Geol & Environm Sci BiGeA, Bologna, Italy
来源
PLOS ONE | 2016年 / 11卷 / 04期
关键词
DOUBLY UNIPARENTAL INHERITANCE; MULTIPLE SEQUENCE ALIGNMENT; WATER MUSSELS BIVALVIA; TRANSFER-RNA GENES; OXIDASE-II GENE; TRANSMEMBRANE TOPOLOGY; DNA TRANSMISSION; ROLE-REVERSALS; CONTROL REGION; TRNASCAN-SE;
D O I
10.1371/journal.pone.0153631
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Bivalve mitochondrial genomes show many uncommon features, like additional genes, high rates of gene rearrangement, high A-T content. Moreover, Doubly Uniparental Inheritance (DUI) is a distinctive inheritance mechanism allowing some bivalves to maintain and transmit two separate sex-linked mitochondrial genomes. Many bivalve mitochondrial features, such as gene extensions or additional ORFs, have been proposed to be related to DUI but, up to now, this topic is far from being understood. Several species are known to show this unusual organelle inheritance but, being widespread only among Unionidae and Mytilidae, DUI distribution is unclear. We sequenced and characterized the complete female- (F) and male-transmitted (M) mitochondrial genomes of Meretrix lamarckii, which, in fact, is the second species of the family Veneridae where DUI has been demonstrated so far. The two mitochondrial genomes are comparable in length and show roughly the same gene content and order, except for three additional tRNAs found in the M one. The two sex-linked genomes show an average nucleotide divergence of 16%. A 100-aminoacid insertion in M. lamarckii M-cox2 gene was found; moreover, additional ORFs have been found in both F and M Long Unassigned Regions of M. lamarckii. Even if no direct involvement in DUI process has been demonstrated so far, the finding of cox2 insertions and supernumerary ORFs in M. lamarckii both strengthens this hypothesis and widens the taxonomical distribution of such unusual features. Finally, the analysis of inter-sex genetic variability shows that DUI species form two separate clusters, namely Unionidae and Mytilidae+Veneridae; this dichotomy is probably due to different DUI regimes acting on separate taxa.
引用
收藏
页数:29
相关论文
共 112 条
[1]   Gapped BLAST and PSI-BLAST: a new generation of protein database search programs [J].
Altschul, SF ;
Madden, TL ;
Schaffer, AA ;
Zhang, JH ;
Zhang, Z ;
Miller, W ;
Lipman, DJ .
NUCLEIC ACIDS RESEARCH, 1997, 25 (17) :3389-3402
[2]   BASIC LOCAL ALIGNMENT SEARCH TOOL [J].
ALTSCHUL, SF ;
GISH, W ;
MILLER, W ;
MYERS, EW ;
LIPMAN, DJ .
JOURNAL OF MOLECULAR BIOLOGY, 1990, 215 (03) :403-410
[3]   Unusually Long Palindromes Are Abundant in Mitochondrial Control Regions of Insects and Nematodes [J].
Arunkumar, K. P. ;
Nagaraju, Javaregowda .
PLOS ONE, 2006, 1 (01)
[4]   TEXshade:: shading and labeling of multiple sequence alignments using LATEX 2ε [J].
Beitz, E .
BIOINFORMATICS, 2000, 16 (02) :135-139
[5]   Tandem repeats finder: a program to analyze DNA sequences [J].
Benson, G .
NUCLEIC ACIDS RESEARCH, 1999, 27 (02) :573-580
[6]   MITOS: Improved de novo metazoan mitochondrial genome annotation [J].
Bernt, Matthias ;
Donath, Alexander ;
Juehling, Frank ;
Externbrink, Fabian ;
Florentz, Catherine ;
Fritzsch, Guido ;
Puetz, Joern ;
Middendorf, Martin ;
Stadler, Peter F. .
MOLECULAR PHYLOGENETICS AND EVOLUTION, 2013, 69 (02) :313-319
[7]   Animal mitochondrial genomes [J].
Boore, JL .
NUCLEIC ACIDS RESEARCH, 1999, 27 (08) :1767-1780
[8]   Heteroplasmy in a deep-sea protobranch bivalve suggests an ancient origin of doubly uniparental inheritance of mitochondria in Bivalvia [J].
Boyle, Elizabeth E. ;
Etter, Ron J. .
MARINE BIOLOGY, 2013, 160 (02) :413-422
[9]   The unusual system of doubly uniparental inheritance of mtDNA: isn't one enough? [J].
Breton, Sophie ;
Beaupre, Helen Doucet ;
Stewart, Donald T. ;
Hoeh, Walter R. ;
Blier, Pierre U. .
TRENDS IN GENETICS, 2007, 23 (09) :465-474
[10]   Novel Protein Genes in Animal mtDNA: A New Sex Determination System in Freshwater Mussels (Bivalvia: Unionoida)? [J].
Breton, Sophie ;
Stewart, Donald T. ;
Shepardson, Sally ;
Trdan, Richard J. ;
Bogan, Arthur E. ;
Chapman, Eric G. ;
Ruminas, Andrew J. ;
Piontkivska, Helen ;
Hoeh, Walter R. .
MOLECULAR BIOLOGY AND EVOLUTION, 2011, 28 (05) :1645-1659