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Lisachov A, Tishakova K, Romanenko S, Lisachova L, Davletshina G, Prokopov D, Kratochvíl L, O Brien P, Ferguson-Smith M, Borodin P, Trifonov V. Robertsonian fusion triggers recombination suppression on sex chromosomes in Coleonyx geckos. Sci Rep 2023; 13:15502. [PMID: 37726346 PMCID: PMC10509250 DOI: 10.1038/s41598-023-39937-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 08/02/2023] [Indexed: 09/21/2023] Open
Abstract
The classical hypothesis proposes that the lack of recombination on sex chromosomes arises due to selection for linkage between a sex-determining locus and sexually antagonistic loci, primarily facilitated by inversions. However, cessation of recombination on sex chromosomes could be attributed also to neutral processes, connected with other chromosome rearrangements or can reflect sex-specific recombination patterns existing already before sex chromosome differentiation. Three Coleonyx gecko species share a complex X1X1X2X2/X1X2Y system of sex chromosomes evolved via a fusion of the Y chromosome with an autosome. We analyzed synaptonemal complexes and sequenced flow-sorted sex chromosomes to investigate the effect of chromosomal rearrangement on recombination and differentiation of these sex chromosomes. The gecko sex chromosomes evolved from syntenic regions that were also co-opted also for sex chromosomes in other reptiles. We showed that in male geckos, recombination is less prevalent in the proximal regions of chromosomes and is even further drastically reduced around the centromere of the neo-Y chromosome. We highlight that pre-existing recombination patterns and Robertsonian fusions can be responsible for the cessation of recombination on sex chromosomes and that such processes can be largely neutral.
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Affiliation(s)
- Artem Lisachov
- Animal Genomics and Bioresource Research Unit (AGB Research Unit), Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand.
- Institute of Environmental and Agricultural Biology (X-BIO), University of Tyumen, Tyumen, 625003, Russia.
- Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, Novosibirsk, 630090, Russia.
| | - Katerina Tishakova
- Institute of Molecular and Cellular Biology, Russian Academy of Sciences, Siberian Branch, Novosibirsk, 630090, Russia
- Novosibirsk State University, Novosibirsk, 630090, Russia
| | - Svetlana Romanenko
- Institute of Molecular and Cellular Biology, Russian Academy of Sciences, Siberian Branch, Novosibirsk, 630090, Russia
| | - Lada Lisachova
- Institute of Molecular and Cellular Biology, Russian Academy of Sciences, Siberian Branch, Novosibirsk, 630090, Russia
- Novosibirsk State University, Novosibirsk, 630090, Russia
| | - Guzel Davletshina
- Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, Novosibirsk, 630090, Russia
- Institute of Molecular and Cellular Biology, Russian Academy of Sciences, Siberian Branch, Novosibirsk, 630090, Russia
| | - Dmitry Prokopov
- Institute of Molecular and Cellular Biology, Russian Academy of Sciences, Siberian Branch, Novosibirsk, 630090, Russia
| | - Lukáš Kratochvíl
- Department of Ecology, Faculty of Science, Charles University, 12844, Prague, Czech Republic
| | - Patricia O Brien
- Department of Veterinary Medicine, Cambridge Resource Centre for Comparative Genomics, University of Cambridge, Cambridge, CB3 0ES, UK
| | - Malcolm Ferguson-Smith
- Department of Veterinary Medicine, Cambridge Resource Centre for Comparative Genomics, University of Cambridge, Cambridge, CB3 0ES, UK
| | - Pavel Borodin
- Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, Novosibirsk, 630090, Russia
- Institute of Molecular and Cellular Biology, Russian Academy of Sciences, Siberian Branch, Novosibirsk, 630090, Russia
| | - Vladimir Trifonov
- Institute of Molecular and Cellular Biology, Russian Academy of Sciences, Siberian Branch, Novosibirsk, 630090, Russia
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2
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Bikchurina T, Pavlenko M, Kizilova E, Rubtsova D, Sheremetyeva I, Kartavtseva I, Torgasheva A, Borodin P. Chromosome Asynapsis Is the Main Cause of Male Sterility in the Interspecies Hybrids of East Asian Voles ( Alexandromys, Rodentia, Arvicolinae). Genes (Basel) 2023; 14:genes14051022. [PMID: 37239382 DOI: 10.3390/genes14051022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/24/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Closely related mammalian species often have differences in chromosome number and morphology, but there is still a debate about how these differences relate to reproductive isolation. To study the role of chromosome rearrangements in speciation, we used the gray voles in the Alexandromys genus as a model. These voles have a high level of chromosome polymorphism and substantial karyotypic divergence. We investigated testis histology and meiotic chromosome behavior in the captive-bred colonies of Alexandromys maximowiczii, Alexandromys mujanensis, two chromosome races of Alexandromys evoronensis, and their interracial and interspecies hybrids, to explore the relationship between karyotypic differences and male hybrid sterility. We found that the seminiferous tubules of the males of the parental species and the interracial hybrids, which were simple heterozygotes for one or more chromosome rearrangements, contained germ cells at all stages of spermatogenesis, indicating their potential fertility. Their meiotic cells displayed orderly chromosome synapsis and recombination. In contrast, all interspecies male hybrids, which were complex heterozygotes for a series of chromosome rearrangements, showed signs of complete sterility. Their spermatogenesis was mainly arrested at the zygotene- or pachytene-like stages due to the formation of complex multivalent chains, which caused extended chromosome asynapsis. The asynapsis led to the silencing of unsynapsed chromatin. We suggest that chromosome asynapsis is the main cause of meiotic arrest and male sterility in the interspecies hybrids of East Asian voles.
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Affiliation(s)
- Tatiana Bikchurina
- Department of Cytology and Genetics, Faculty of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Marina Pavlenko
- Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far East Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia
| | - Elena Kizilova
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Daria Rubtsova
- Department of Cytology and Genetics, Faculty of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Irina Sheremetyeva
- Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far East Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia
| | - Irina Kartavtseva
- Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far East Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia
| | - Anna Torgasheva
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Pavel Borodin
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
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3
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Borodin P, Chen A, Forstmeier W, Fouché S, Malinovskaya L, Pei Y, Reifová R, Ruiz-Ruano FJ, Schlebusch SA, Sotelo-Muñoz M, Torgasheva A, Vontzou N, Suh A. Mendelian nightmares: the germline-restricted chromosome of songbirds. Chromosome Res 2022; 30:255-272. [PMID: 35416568 PMCID: PMC9508068 DOI: 10.1007/s10577-022-09688-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/07/2022] [Accepted: 03/16/2022] [Indexed: 11/03/2022]
Abstract
Germline-restricted chromosomes (GRCs) are accessory chromosomes that occur only in germ cells. They are eliminated from somatic cells through programmed DNA elimination during embryo development. GRCs have been observed in several unrelated animal taxa and show peculiar modes of non-Mendelian inheritance and within-individual elimination. Recent cytogenetic and phylogenomic evidence suggests that a GRC is present across the species-rich songbirds, but absent in non-passerine birds, implying that over half of all 10,500 bird species have extensive germline/soma genome differences. Here, we review recent insights gained from genomic, transcriptomic, and cytogenetic approaches with regard to the genetic content, phylogenetic distribution, and inheritance of the songbird GRC. While many questions remain unsolved in terms of GRC inheritance, elimination, and function, we discuss plausible scenarios and future directions for understanding this widespread form of programmed DNA elimination.
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Affiliation(s)
- Pavel Borodin
- Siberian Department, Russian Academy of Sciences, Institute of Cytology and Genetics, Prospekt Akademika Lavrent'yeva 10, 630090, Novosibirsk, Russia
| | - Augustin Chen
- Department of Organismal Biology - Systematic Biology, Evolutionary Biology Centre, Uppsala University, Science for Life Laboratory, 752 36, Uppsala, Sweden
| | - Wolfgang Forstmeier
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Eberhard-Gwinner-Straße, 82319, Seewiesen, Germany.
| | - Simone Fouché
- Department of Organismal Biology - Systematic Biology, Evolutionary Biology Centre, Uppsala University, Science for Life Laboratory, 752 36, Uppsala, Sweden.,School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, NR4 7TU, UK
| | - Lyubov Malinovskaya
- Siberian Department, Russian Academy of Sciences, Institute of Cytology and Genetics, Prospekt Akademika Lavrent'yeva 10, 630090, Novosibirsk, Russia
| | - Yifan Pei
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Eberhard-Gwinner-Straße, 82319, Seewiesen, Germany
| | - Radka Reifová
- Department of Zoology, Faculty of Science, Charles University, Viničná 7, 128 44, Prague, Czech Republic.
| | - Francisco J Ruiz-Ruano
- Department of Organismal Biology - Systematic Biology, Evolutionary Biology Centre, Uppsala University, Science for Life Laboratory, 752 36, Uppsala, Sweden.,School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, NR4 7TU, UK
| | - Stephen A Schlebusch
- Department of Zoology, Faculty of Science, Charles University, Viničná 7, 128 44, Prague, Czech Republic
| | - Manuelita Sotelo-Muñoz
- Department of Zoology, Faculty of Science, Charles University, Viničná 7, 128 44, Prague, Czech Republic
| | - Anna Torgasheva
- Siberian Department, Russian Academy of Sciences, Institute of Cytology and Genetics, Prospekt Akademika Lavrent'yeva 10, 630090, Novosibirsk, Russia.
| | - Niki Vontzou
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, NR4 7TU, UK
| | - Alexander Suh
- Department of Organismal Biology - Systematic Biology, Evolutionary Biology Centre, Uppsala University, Science for Life Laboratory, 752 36, Uppsala, Sweden. .,School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, NR4 7TU, UK.
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4
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Torgasheva A, Malinovskaya L, Zadesenets K, Shnaider E, Rubtsov N, Borodin P. Germline-Restricted Chromosome (GRC) in Female and Male Meiosis of the Great Tit (Parus major, Linnaeus, 1758). Front Genet 2021; 12:768056. [PMID: 34759962 PMCID: PMC8573160 DOI: 10.3389/fgene.2021.768056] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 09/28/2021] [Indexed: 11/17/2022] Open
Abstract
All songbirds studied so far have a germline-restricted chromosome (GRC), which is present in the germ cells and absent in the somatic cells. It shows a wide variation in size, morphology, and genetic content between the songbird species. In this paper, we analyzed GRC behavior in female and male meiosis of the great tit, using immunolocalization of meiotic proteins and FISH with GRC-derived DNA probes. We found that, despite dozens of million years of independent evolution, the great tit GRC displays a striking similarity with the GRCs of two species of martins and two species of estrildid finches examined earlier. It was usually present in two copies in females forming recombining bivalent and in one copy in males forming a condensed heterochromatic body with dotted-like axial elements of the synaptonemal complex. We observed mosaicism for the GRC copy number in the female and male great tit. This indicates that one of the GRC copies might be passively lost during premeiotic germ cell divisions. After the meiotic prophase, the GRC was ejected from most male germ cells. The reverse and interspecies FISH with GRC-specific microdissected DNA probes indicates that GRCs of the great tit, pale martin, and zebra finch differ substantially in their genetic content despite similarities in the meiotic behavior.
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Affiliation(s)
- Anna Torgasheva
- Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, Novosibirsk, Russia.,Novosibirsk State University, Novosibirsk, Russia
| | - Lyubov Malinovskaya
- Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, Novosibirsk, Russia.,Novosibirsk State University, Novosibirsk, Russia
| | - Kira Zadesenets
- Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, Novosibirsk, Russia
| | | | - Nikolai Rubtsov
- Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, Novosibirsk, Russia.,Novosibirsk State University, Novosibirsk, Russia
| | - Pavel Borodin
- Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, Novosibirsk, Russia.,Novosibirsk State University, Novosibirsk, Russia
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5
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Torgasheva A, Malinovskaya L, Zadesenets KS, Slobodchikova A, Shnaider E, Rubtsov N, Borodin P. Highly Conservative Pattern of Sex Chromosome Synapsis and Recombination in Neognathae Birds. Genes (Basel) 2021; 12:1358. [PMID: 34573341 PMCID: PMC8465153 DOI: 10.3390/genes12091358] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/16/2021] [Accepted: 08/27/2021] [Indexed: 01/22/2023] Open
Abstract
We analyzed the synapsis and recombination between Z and W chromosomes in the oocytes of nine neognath species: domestic chicken Gallus gallus domesticus, grey goose Anser anser, black tern Chlidonias niger, common tern Sterna hirundo, pale martin Riparia diluta, barn swallow Hirundo rustica, European pied flycatcher Ficedula hypoleuca, great tit Parus major and white wagtail Motacilla alba using immunolocalization of SYCP3, the main protein of the lateral elements of the synaptonemal complex, and MLH1, the mismatch repair protein marking mature recombination nodules. In all species examined, homologous synapsis occurs in a short region of variable size at the ends of Z and W chromosomes, where a single recombination nodule is located. The remaining parts of the sex chromosomes undergo synaptic adjustment and synapse non-homologously. In 25% of ZW bivalents of white wagtail, synapsis and recombination also occur at the secondary pairing region, which probably resulted from autosome-sex chromosome translocation. Using FISH with a paint probe specific to the germline-restricted chromosome (GRC) of the pale martin on the oocytes of the pale martin, barn swallow and great tit, we showed that both maternally inherited songbird chromosomes (GRC and W) share common sequences.
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Affiliation(s)
- Anna Torgasheva
- Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, 630090 Novosibirsk, Russia; (A.T.); (L.M.); (K.S.Z.); (A.S.); (N.R.)
- Department of Cytology and Genetics, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Lyubov Malinovskaya
- Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, 630090 Novosibirsk, Russia; (A.T.); (L.M.); (K.S.Z.); (A.S.); (N.R.)
- Department of Cytology and Genetics, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Kira S. Zadesenets
- Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, 630090 Novosibirsk, Russia; (A.T.); (L.M.); (K.S.Z.); (A.S.); (N.R.)
| | - Anastasia Slobodchikova
- Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, 630090 Novosibirsk, Russia; (A.T.); (L.M.); (K.S.Z.); (A.S.); (N.R.)
- Department of Cytology and Genetics, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Elena Shnaider
- Bird of Prey Rehabilitation Centre, 630090 Novosibirsk, Russia;
| | - Nikolai Rubtsov
- Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, 630090 Novosibirsk, Russia; (A.T.); (L.M.); (K.S.Z.); (A.S.); (N.R.)
- Department of Cytology and Genetics, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Pavel Borodin
- Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, 630090 Novosibirsk, Russia; (A.T.); (L.M.); (K.S.Z.); (A.S.); (N.R.)
- Department of Cytology and Genetics, Novosibirsk State University, 630090 Novosibirsk, Russia
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6
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Lisachov A, Andreyushkova D, Davletshina G, Prokopov D, Romanenko S, Galkina S, Saifitdinova A, Simonov E, Borodin P, Trifonov V. Amplified Fragments of an Autosome-Borne Gene Constitute a Significant Component of the W Sex Chromosome of Eremias velox (Reptilia, Lacertidae). Genes (Basel) 2021; 12:779. [PMID: 34065205 PMCID: PMC8160951 DOI: 10.3390/genes12050779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/11/2021] [Accepted: 05/17/2021] [Indexed: 01/30/2023] Open
Abstract
Heteromorphic W and Y sex chromosomes often experience gene loss and heterochromatinization, which is frequently viewed as their "degeneration". However, the evolutionary trajectories of the heterochromosomes are in fact more complex since they may not only lose but also acquire new sequences. Previously, we found that the heterochromatic W chromosome of a lizard Eremias velox (Lacertidae) is decondensed and thus transcriptionally active during the lampbrush stage. To determine possible sources of this transcription, we sequenced DNA from a microdissected W chromosome sample and a total female DNA sample and analyzed the results of reference-based and de novo assembly. We found a new repetitive sequence, consisting of fragments of an autosomal protein-coding gene ATF7IP2, several SINE elements, and sequences of unknown origin. This repetitive element is distributed across the whole length of the W chromosome, except the centromeric region. Since it retained only 3 out of 10 original ATF7IP2 exons, it remains unclear whether it is able to produce a protein product. Subsequent studies are required to test the presence of this element in other species of Lacertidae and possible functionality. Our results provide further evidence for the view of W and Y chromosomes as not just "degraded" copies of Z and X chromosomes but independent genomic segments in which novel genetic elements may arise.
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Affiliation(s)
- Artem Lisachov
- Institute of Environmental and Agricultural Biology (X-BIO), University of Tyumen, Lenina str. 23, 625003 Tyumen, Russia;
- Institute of Cytology and Genetics SB RAS, Acad. Lavrentiev Ave. 10, 630090 Novosibirsk, Russia; (G.D.); (P.B.)
| | - Daria Andreyushkova
- Institute of Molecular and Cellular Biology SB RAS, Acad. Lavrentiev Ave. 8/2, 630090 Novosibirsk, Russia; (D.A.); (D.P.); (S.R.); (V.T.)
| | - Guzel Davletshina
- Institute of Cytology and Genetics SB RAS, Acad. Lavrentiev Ave. 10, 630090 Novosibirsk, Russia; (G.D.); (P.B.)
- Institute of Molecular and Cellular Biology SB RAS, Acad. Lavrentiev Ave. 8/2, 630090 Novosibirsk, Russia; (D.A.); (D.P.); (S.R.); (V.T.)
| | - Dmitry Prokopov
- Institute of Molecular and Cellular Biology SB RAS, Acad. Lavrentiev Ave. 8/2, 630090 Novosibirsk, Russia; (D.A.); (D.P.); (S.R.); (V.T.)
| | - Svetlana Romanenko
- Institute of Molecular and Cellular Biology SB RAS, Acad. Lavrentiev Ave. 8/2, 630090 Novosibirsk, Russia; (D.A.); (D.P.); (S.R.); (V.T.)
| | - Svetlana Galkina
- Department of Genetics and Biotechnology, Saint Petersburg State University, Universitetskaya Emb. 7–9, 199034 Saint Petersburg, Russia;
| | - Alsu Saifitdinova
- Department of Human and Animal Anatomy and Physiology, Herzen State Pedagogical University of Russia, Moyka Emb. 48, 191186 Saint Petersburg, Russia;
| | - Evgeniy Simonov
- Institute of Environmental and Agricultural Biology (X-BIO), University of Tyumen, Lenina str. 23, 625003 Tyumen, Russia;
| | - Pavel Borodin
- Institute of Cytology and Genetics SB RAS, Acad. Lavrentiev Ave. 10, 630090 Novosibirsk, Russia; (G.D.); (P.B.)
- Novosibirsk State University, Pirogova str. 3, 630090 Novosibirsk, Russia
| | - Vladimir Trifonov
- Institute of Molecular and Cellular Biology SB RAS, Acad. Lavrentiev Ave. 8/2, 630090 Novosibirsk, Russia; (D.A.); (D.P.); (S.R.); (V.T.)
- Novosibirsk State University, Pirogova str. 3, 630090 Novosibirsk, Russia
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7
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Axenovich T, Zorkoltseva I, Belonogova N, van Koolwijk LME, van Koolwijk L, Borodin P, Kirichenko A, Babenko V, Ramdas WD, Ramdas W, Amin N, Despriet DDG, Despriet D, Vingerling JR, Vingerling J, Lemij HG, Lemij H, Oostra BA, Klaver CCW, Klaver C, Aulchenko YS, Aulchenko Y, van Duijn CM, van Duijn C. Linkage and association analyses of glaucoma related traits in a large pedigree from a Dutch genetically isolated population. J Med Genet 2011; 48:802-9. [PMID: 22058429 DOI: 10.1136/jmedgenet-2011-100436] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Despite extensive research on the genetic determinants of glaucoma, the genes identified to date explain only a small proportion of cases in the general population. METHODS Genome-wide linkage and association analyses of quantitative traits related to glaucoma were performed: intraocular pressure, size and morphology of the optic disc (individual and combined by method of principal components) and thickness of the retinal nerve fibre layer (RNFL), in a large pedigree from a genetically isolated Dutch population. RESULTS For the size of the optic disc, the study demonstrated a significant linkage signal (logarithm of odds (LOD)=3.6) at the LRP1B region on chromosome 2q21.2-q22.2 and significant association (p=8.95×10(-12)) with the previously reported CDC7/TGFBR3 locus at 1p22. For parameters describing morphology of the optic disc, the study obtained significant linkage signal (LOD=4.6) at regions SIRPA and RNF24/PANK2 at 20p13 (false discovery rate (FDR) based q value <0.05) and genome-wide significant association (p=2.38×10(-9)) with a common variant in the RERE gene at 1p36. Suggestive linkage and association signals indicated loci for morphology of the optic disc at 2q31-q33 (IGFBP2 locus) and for RNFL thickness at 3p22.2 (DCLK3 locus) and 14q22-q23 (SIX1 locus). CONCLUSION This study identified new linkage regions at 20p13 (SIRPA and RNF24/PANK2 loci) and 2q33-q34 (IGFBP2 locus) for parameters describing morphology of the optic disc. The results of the study also suggested common genetic control of these parameters and RNFL thickness by SIX1 and doublecotin family genes. Finally, association signals for the recently reported RERE and LRP1B loci and the well known CDC7, TGFBR3, and ATOH7 loci were replicated.
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Affiliation(s)
- Tatiana Axenovich
- Institute of Cytology & Genetics, Lavrentiev Avenue 10, Novosibirsk 630090, Russian Federation.
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8
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Borodin P, Brenes J, Daudi E, Efendi N, Flower S, Hidayat M, Husni M, Kampine M, Kusonski O, Lang A, Monge I, Mucussete A, Nhatsave A, Santika IKO, Rasson J, Riddick J, Suharyadi D, Turbitt C, Yusuf M. INDIGO: Better Geomagnetic Observatories Where We Need Them. Data Sci J 2011. [DOI: 10.2481/dsj.iaga-15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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9
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Sanderson H, Fauser P, Thomsen M, Vanninen P, Soderstrom M, Savin Y, Khalikov I, Hirvonen A, Niiranen S, Missiaen T, Gress A, Borodin P, Medvedeva N, Polyak Y, Paka V, Zhurbas V, Feller P. Environmental hazards of sea-dumped chemical weapons. Environ Sci Technol 2010; 44:4389-4394. [PMID: 20469894 DOI: 10.1021/es903472a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Does the post-WWII burial at sea of chemical weapons still pose a human and environmental risk?
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10
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Araripe LO, Aprigliano P, Olifiers N, Borodin P, Cerqueira R. Comparative analysis of life-history traits in two species of C alomys (Rodentia: Sigmodontinae) in captivity / Analyse comparative des traits d'histoire de vie de deux espèces de Calomys (Rodentia: Sigmodontinae) en captivité. MAMMALIA 2006. [DOI: 10.1515/mamm.70.1-2.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractWe analyzed life-history traits (fertility, growth and rate of postnatal development) in captive-bred colonies of two closely related sympatric species: Calomys expulsus and C. tener (Rodentia, Sigmodontinae). We found significant differences between the species in growth rate and several reproductive traits. C. tener had a smaller litter size and litter mass, smaller proportion of litter mass to maternal mass, lower growth rate and higher infant mortality. We also found an apparent difference in correlation patterns of life history parameters between the two species of Calomys . The strong correlation between body size and fecundity found in other studies of life history traits and in selection experiments seems to be disrupted in C. tener . We found a significant positive correlation between maternal mass and litter size and mass only for C. expulsus, which means that in C. tener the fertility of females does not depend strongly on body mass. We discuss inbreeding depression and stress reactions as possible reasons for these results.
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Araripe LO, Aprigliano P, Olifiers N, Borodin P, Cerqueira R. Comparative analysis of life-history traits in two species of C alomys (Rodentia: Sigmodontinae) in captivity / Analyse comparative des traits d'histoire de vie de deux espèces de Calomys (Rodentia: Sigmodontinae) en captivité. MAMMALIA 2006. [DOI: 10.1515/mamm.2006.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractWe analyzed life-history traits (fertility, growth and rate of postnatal development) in captive-bred colonies of two closely related sympatric species: Calomys expulsus and C. tener (Rodentia, Sigmodontinae). We found significant differences between the species in growth rate and several reproductive traits. C. tener had a smaller litter size and litter mass, smaller proportion of litter mass to maternal mass, lower growth rate and higher infant mortality. We also found an apparent difference in correlation patterns of life history parameters between the two species of Calomys . The strong correlation between body size and fecundity found in other studies of life history traits and in selection experiments seems to be disrupted in C. tener . We found a significant positive correlation between maternal mass and litter size and mass only for C. expulsus, which means that in C. tener the fertility of females does not depend strongly on body mass. We discuss inbreeding depression and stress reactions as possible reasons for these results.
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Wyttenbach A, Borodin P, Hausser J. Meiotic drive favors Robertsonian metacentric chromosomes in the common shrew (Sorex araneus, Insectivora, mammalia). Cytogenet Cell Genet 2000; 83:199-206. [PMID: 10072577 DOI: 10.1159/000015178] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Meiotic drive has attracted much interest because it concerns the robustness of Mendelian segregation and its genetic and evolutionary stability. We studied chromosomal meiotic drive in the common shrew (Sorex araneus, Insectivora, Mammalia), which exhibits one of the most remarkable chromosomal polymorphisms within mammalian species. The open question of the evolutionary success of metacentric chromosomes (Robertsonian fusions) versus acrocentrics in the common shrew prompted us to test whether a segregation distortion in favor of metacentrics is present in female and/or male meiosis. Performing crosses under controlled laboratory conditions with animals from natural populations, we found a clear trend toward a segregation distortion in favor of metacentrics during male meiosis, two chromosome combinations (gm and jl) being significantly preferred over their acrocentric homologs. Apart for one Robertsonian fusion (hi), this trend was absent in female meiosis. We propose a model based on recombination events between twin acrocentrics to explain the difference in transmission ratios of the same metacentric in different sexes and unequal drive of particular metacentrics in the same sex. Pooled data for female and male meiosis revealed a trend toward stronger segregation distortion for larger metacentrics. This is partially in agreement with the frequency of metacentrics occurring in natural populations of a chromosome race showing a high degree of chromosomal polymorphism.
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Affiliation(s)
- A Wyttenbach
- Institut of Zoology and Animal Ecology, University of Lausanne, Lausanne, Switzerland.
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Gorlov I, Schuler L, Bunger L, Borodin P. Chiasma frequency in strains of mice selected for litter size and for high body weight. Theor Appl Genet 1992; 84:640-642. [PMID: 24201352 DOI: 10.1007/bf00224163] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/1991] [Accepted: 12/19/1991] [Indexed: 06/02/2023]
Abstract
Chiasma frequency was measured in male mice of three outbred lines: FZt:DU (control); DU:6, selected for increased body weight; and DU:C, selected for high fertility. Chiasma frequency was seen to increase in the high body weight line, but decrease in the high fertility line. In both selected lines the intragroup variance in chiasma frequency increased while in DU:C the intracell variance was lower than in the control.
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Affiliation(s)
- I Gorlov
- Institute of Cytology and Genetics, Siberian Branch of the Academy of Science of the USSR, 630090, Novosibirsk, Russia
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