Funding for this research was provided by:
Fundação de Amparo à Pesquisa do Estado de São Paulo (2016/22013-5)
Text and Data Mining valid from 2018-09-17
Received: 9 April 2018
Accepted: 7 September 2018
First Online: 17 September 2018
Ethics approval and consent to participate
: The DNA was extracted from semen bought from artificial insemination centers and therefore no specific ethical approval is needed (Brazil law number 11794, from October 8th, 2008, Chapter 1, Art. 3, paragraph III). All the samples were obtained with the consent of the artificial insemination centers to use for research.
: Not applicable.
: The authors declare that they have no competing interests.
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