Short Communication: An association analysis between one missense polymorphism at the SREBF1 gene and milk yield and composition traits in goats
Author(s) -
Arianna Manunza,
A. Zidi,
Víctor M. FernándezCabanás,
J. Jordana,
J. Carrizosa,
E. Belaifa,
B. Urrutia,
O. Polvillo,
Pedro González Redondo,
Marcel Amills,
J. M. Serradilla
Publication year - 2012
Publication title -
canadian journal of animal science
Language(s) - French
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1918-1825
pISSN - 0008-3984
DOI - 10.4141/cjas2011-111
Subject(s) - biology , gene , missense mutation , genetics , polymorphism (computer science) , exon , composition (language) , genotype , phenotype , linguistics , philosophy
Sterol regulatory element binding transcription factor 1 (SREBF1) regulates the expression of genes involved in
the biosynthesis of fatty acids and cholesterol. Herewith, we have sequenced the near-complete coding region and part of
the 3?UTR of the goat SREBF1 gene. In doing so, we have detected a missense c.353CT polymorphism causing a proline
to leucine substitution at position 118 (P118L). An association analysis with milk composition traits recorded in MurcianoGranadina
goats only revealed a statistical tendency linking SREBF1 genotype and milk omega-3 fatty acid content. The
lack of significant associations suggests that the P118L substitution does not involve a functional change.Le facteur de transcription de´nomme´ Sterol regulatory element binding transcription factor 1 (SREBF1)
re´gule l’expression des ge`nes implique´s dans la biosynthe`se des acides gras et du choleste´rol. Dans cette e´tude, nous avons
se´quence´ la quasi-totalite´ de la re´gion codante et une partie du la re´gion 3?UTR du ge`ne SREBF1 de la che`vre. Ce travail,
nous a permis d’identifier un polymorphisme non-synonyme c.353CT causant la substitution d’une Proline en Leucine a`
la position 118. L’e´tude d’association avec la composition du lait enregistre´e en che`vres Murciano-Granadina, a re´ve´le´
seulement une tendance statistique reliant SREBF1 ge´notype et l’acide gras ome´ga-3 du lait. L’absence d’associations
significatives sugge`re que la substitution P118L n’implique pas un changement fonctionnel
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