A reciprocal translocation radically reshapes sex‐linked inheritance in the common frog

M.A. Toups, N. Rodrigues, N. Perrin, M. Kirkpatrick, Molecular Ecology 28 (2019) 1877–1889.

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Journal Article | Published | English
Author
Toups, Melissa AIST Austria ; Rodrigues, Nicolas; Perrin, Nicolas; Kirkpatrick, Mark
Department
Abstract
X and Y chromosomes can diverge when rearrangements block recombination between them. Here we present the first genomic view of a reciprocal translocation that causes two physically unconnected pairs of chromosomes to be coinherited as sex chromosomes. In a population of the common frog (Rana temporaria), both pairs of X and Y chromosomes show extensive sequence differentiation, but not degeneration of the Y chromosomes. A new method based on gene trees shows both chromosomes are sex‐linked. Furthermore, the gene trees from the two Y chromosomes have identical topologies, showing they have been coinherited since the reciprocal translocation occurred. Reciprocal translocations can thus reshape sex linkage on a much greater scale compared with inversions, the type of rearrangement that is much better known in sex chromosome evolution, and they can greatly amplify the power of sexually antagonistic selection to drive genomic rearrangement. Two more populations show evidence of other rearrangements, suggesting that this species has unprecedented structural polymorphism in its sex chromosomes.
Publishing Year
Date Published
2019-04-01
Journal Title
Molecular Ecology
Volume
28
Issue
8
Page
1877-1889
IST-REx-ID

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Toups MA, Rodrigues N, Perrin N, Kirkpatrick M. A reciprocal translocation radically reshapes sex‐linked inheritance in the common frog. Molecular Ecology. 2019;28(8):1877-1889. doi:10.1111/mec.14990
Toups, M. A., Rodrigues, N., Perrin, N., & Kirkpatrick, M. (2019). A reciprocal translocation radically reshapes sex‐linked inheritance in the common frog. Molecular Ecology, 28(8), 1877–1889. https://doi.org/10.1111/mec.14990
Toups, Melissa A, Nicolas Rodrigues, Nicolas Perrin, and Mark Kirkpatrick. “A Reciprocal Translocation Radically Reshapes Sex‐linked Inheritance in the Common Frog.” Molecular Ecology 28, no. 8 (2019): 1877–89. https://doi.org/10.1111/mec.14990.
M. A. Toups, N. Rodrigues, N. Perrin, and M. Kirkpatrick, “A reciprocal translocation radically reshapes sex‐linked inheritance in the common frog,” Molecular Ecology, vol. 28, no. 8, pp. 1877–1889, 2019.
Toups MA, Rodrigues N, Perrin N, Kirkpatrick M. 2019. A reciprocal translocation radically reshapes sex‐linked inheritance in the common frog. Molecular Ecology. 28(8), 1877–1889.
Toups, Melissa A., et al. “A Reciprocal Translocation Radically Reshapes Sex‐linked Inheritance in the Common Frog.” Molecular Ecology, vol. 28, no. 8, Wiley, 2019, pp. 1877–89, doi:10.1111/mec.14990.

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