ArticleMolecular biology reports2014
Ovine insulin induced-gene-2: molecular characterization, polymorphisms and association with milk traits.
Article in Molecular biology reports, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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2 citing papers in PubMed, 4 citations in OpenAlex.
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim was to characterize the INSIG-2 gene in Sarda sheep and to highlight associations between polymorphisms and milk traits. Two-hundred ewes, in their third or fourth lactation who lambed a single lamb between 20th and 30th of November, were chosen. Monthly individual milk yield was recorded and from each ewe a sample of milk was taken to analyze fat and protein content. PCR-RFLP and DNA sequencing were carried out to detect polymorphisms. Five exons have been characterized and five mutations have been found G88A, 436TCAGdel, A471G, C1071T and T1737G all in the intronic regions. The ovine sequence and related variations were deposited in GenBank with accession number JX843812.1. The animals carrying AA genotype at position 88 showed a lower milk fat concentration than those with the AG or GG genotype (P < 0.05). A lower milk fat concentration was registered also in the animals with the TCAG deletion in position 436 (P < 0.05) and in the animals carrying AA genotype at position 471 compared to those with the AG or GG genotype (P < 0.05). Moreover, the animals carrying CC genotype at position 1071 had a greater milk yield than those with CT or TT genotype (P < 0.05) while ewes with TT genotype showed a higher milk protein concentration compared to the others (P < 0.05). A total of 11 haplotypes were detected but no significant associations with milk traits were found. In conclusion for the first time the complete coding sequence of INSIG-2 gene and its association with milk trait has been reported in this study.
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