Marker-assisted introgression of fecundity mutation into Barbarine sheep breed under low input production system

Vista sencilla de ítem
dc.creatorBedhiaf-Romdhani, S.
dc.creatorBaazaoui, Imen
dc.creatorArari, Emna
dc.creatorLahmar, Mustapha
dc.creatorLetaief, Neyrouz
dc.creatorHemdene, Mounir
dc.creatorRekik, Mourad
dc.creatorHaile, Aynalem
dc.date2023-04-24
dc.date2023-11-09T20:20:53Z
dc.date2023-11-09T20:20:53Z
dc.date.accessioned2026-06-27T14:23:57Z
dc.descriptionFecundity gene introgression has become an economical method to improve sheep prolificacy in developing countries. The FecXBar and FecGH mutations are variants of the BMP15 and GDF9 sheep genes, respectively, identified in Tunisian Barbarine sheep prolific line “W-INRAT,” created through a prolificacy-based selection program. The first mutation caused increased prolificacy in heterozygous state and sterility in homozygous ewes. The aim of this work was to increase the number of effective carriers by the introgression of fecundity mutation into non-carrier conventional flocks based on a marker-assisted breeding program. The genotyping was carried out to follow up on the segregation of prolificacy mutation. The conventional ewes, raised in state farms of Tunisia and inseminated by “W-INRAT” rams, yielded 100% carriers females at heterozygous state. These females were selected to be inseminated with conventional rams and produced carriers’ lambs with 66.7% males and 33.3% females. The prolific males will be kept in breeding centers to disseminate the fecundity mutation in commercial flocks. This approach facilitates the dissemination of fecundity genes and contributes to livelihood improvement in communities raising Barbarine sheep.
dc.identifierhttps://hdl.handle.net/10568/132882
dc.identifier.urihttp://hdl.handle.net/123456789/78537
dc.languageen
dc.publisherSpringer
dc.rightsLimited Access
dc.sourceS. Bedhiaf-Romdhani, Imen Baazaoui, Emna Arari, Mustapha Lahmar, Neyrouz Letaief, Mounir Hemdene, Mourad Rekik, Aynalem Haile. (24/4/2023). Marker-assisted introgression of fecundity mutation into Barbarine sheep breed under low input production system. Tropical Animal Health and Production, 55.
dc.subjectintrogression
dc.subjectgenotyping
dc.subjectbarbarine
dc.subjectsheep
dc.subjectprolificacy
dc.subjectfecx bar mutation
dc.titleMarker-assisted introgression of fecundity mutation into Barbarine sheep breed under low input production system
dc.typeJournal Article

Archivos

Colecciones

Centro Internacional para la Investigación Agrícola en las Áreas Secas (ICARDA)