Copy number variation of testis-specific protein Y-encoded (TSPY) among different breeds of cattle (Bos taurus) and related individuals (Abstract/Poster in atti di convegno)

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  • Copy number variation of testis-specific protein Y-encoded (TSPY) among different breeds of cattle (Bos taurus) and related individuals (Abstract/Poster in atti di convegno) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Alternative label
  • Christine Karin Hamilton, Laura Favetta, Giulia Pia Di Meo, Sandrine Floriot, Angela Perucatti, Jaana Peippo, Juha Kantanen, Andre Eggen, Leopoldo Iannuzzi and William Allan King (2009)
    Copy number variation of testis-specific protein Y-encoded (TSPY) among different breeds of cattle (Bos taurus) and related individuals
    in Experimental Biology '09, New Orleans, LA, April 18-22, 2009
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Christine Karin Hamilton, Laura Favetta, Giulia Pia Di Meo, Sandrine Floriot, Angela Perucatti, Jaana Peippo, Juha Kantanen, Andre Eggen, Leopoldo Iannuzzi and William Allan King (literal)
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  • http://www.fasebj.org/cgi/content/meeting_abstract/23/1_MeetingAbstracts/LB184 (literal)
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  • 23 (literal)
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  • Abstract (literal)
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Titolo
  • Copy number variation of testis-specific protein Y-encoded (TSPY) among different breeds of cattle (Bos taurus) and related individuals (literal)
Abstract
  • Multi-copied gene families are prevalent in mammalian genomes especially within the Y chromosome. Gene copy number variation can impact phenotype and is becoming more appreciated as a source of global variation. Testis specific protein Y-encoded (TSPY) is present in variable copy number in many mammalian species. Cattle, for example, have copies numbers ranging from 50-200. The purpose of this study was to investigate the extent to which TSPY copy number varies among bulls, between different breeds of cattle and between related (step-brother) bulls. To investigate TSPY copy number we used relative real time polymerase chain reaction (PCR) to analyze the DNA of fourteen different cattle breeds and four sons of a single sire. The results showed variation both between and within breeds. Brown Swiss (161 copies, CI = 133-195) had significantly higher levels of TSPY and Western Fjord (65 copies, CI = 45-86) had significantly lower levels than some breeds, although most breeds had similar average TSPY copy numbers. All bulls showed within-breed variation. The TSPY copy numbers of the sons ranged from 55-75 copies and were found to differ significantly. These results show that copy number variation of TSPY can be seen within a single generation. This study demonstrates that copy number variation of TSPY is extensive in the bovine population; however, the purpose of this variation still remains a mystery. (literal)
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