Research output: Contribution to journal › Article › peer-review
Germline-restricted chromosome (GRC) in the sand martin and the pale martin (Hirundinidae, Aves) : synapsis, recombination and copy number variation. / Malinovskaya, Lyubov P.; Zadesenets, Kira S.; Karamysheva, Tatyana V. et al.
In: Scientific Reports, Vol. 10, No. 1, 1058, 23.01.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Germline-restricted chromosome (GRC) in the sand martin and the pale martin (Hirundinidae, Aves)
T2 - synapsis, recombination and copy number variation
AU - Malinovskaya, Lyubov P.
AU - Zadesenets, Kira S.
AU - Karamysheva, Tatyana V.
AU - Akberdina, Ekaterina A.
AU - Kizilova, Elena A.
AU - Romanenko, Margarita V.
AU - Shnaider, Elena P.
AU - Scherbakova, Mariya M.
AU - Korobitsyn, Igor G.
AU - Rubtsov, Nikolai B.
AU - Borodin, Pavel M.
AU - Torgasheva, Anna A.
N1 - Publisher Copyright: © 2020, The Author(s). Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/1/23
Y1 - 2020/1/23
N2 - All songbirds studied to date have an additional Germline Restricted Chromosome (GRC), which is not present in somatic cells. GRCs show a wide variation in genetic content and little homology between species. To check how this divergence affected the meiotic behavior of the GRC, we examined synapsis, recombination and copy number variation for GRCs in the closely related sand and pale martins (Riparia riparia and R. diluta) in comparison with distantly related estrildid finches. Using immunolocalization of meiotic proteins and FISH with GRC-specific DNA probes, we found a striking similarity in the meiotic behavior of GRCs between martins and estrildid finches despite the millions of years of independent evolution. GRCs are usually present in two copies in female and in one copy in male pachytene cells. However, we detected polymorphism in female and mosaicism in male martins for the number of GRCs. In martin and zebra finch females, two GRCs synapse along their whole length, but recombine predominately at their ends. We suggest that the shared features of the meiotic behavior of GRCs have been supported by natural selection in favor of a preferential segregation of GRCs to the eggs.
AB - All songbirds studied to date have an additional Germline Restricted Chromosome (GRC), which is not present in somatic cells. GRCs show a wide variation in genetic content and little homology between species. To check how this divergence affected the meiotic behavior of the GRC, we examined synapsis, recombination and copy number variation for GRCs in the closely related sand and pale martins (Riparia riparia and R. diluta) in comparison with distantly related estrildid finches. Using immunolocalization of meiotic proteins and FISH with GRC-specific DNA probes, we found a striking similarity in the meiotic behavior of GRCs between martins and estrildid finches despite the millions of years of independent evolution. GRCs are usually present in two copies in female and in one copy in male pachytene cells. However, we detected polymorphism in female and mosaicism in male martins for the number of GRCs. In martin and zebra finch females, two GRCs synapse along their whole length, but recombine predominately at their ends. We suggest that the shared features of the meiotic behavior of GRCs have been supported by natural selection in favor of a preferential segregation of GRCs to the eggs.
KW - ZEBRA FINCH
KW - MEIOSIS
KW - EVOLUTION
KW - ELIMINATION
UR - http://www.scopus.com/inward/record.url?scp=85078077952&partnerID=8YFLogxK
U2 - 10.1038/s41598-020-58032-4
DO - 10.1038/s41598-020-58032-4
M3 - Article
C2 - 31974427
AN - SCOPUS:85078077952
VL - 10
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
IS - 1
M1 - 1058
ER -
ID: 23236334