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Exploring the Genetic Background of the Differences in Nest-Building Behavior in European Rabbit.


ABSTRACT: Once a day, nursing and absentee mothering make the wild rabbit (Oryctolagus cuniculus) an ideal model animal for measuring differences in maternal behavior. Behavioral events and their hormonal regulation leading to parturition are well documented; however, the genetic background behind individual differences in this complex process is unknown. Decreased progesterone hormone level and the reduction of progesterone receptor activity are crucial to initiating the collection of nest material. The progesterone receptor gene is a likely candidate affecting nest-building behavior. In addition to several known point mutations in the progesterone receptor gene of the European wild rabbit, we have found a new mutation in the promoter region of the gene at 2682 T > C. Although this new single nucleotide polymorphism (SNP) was not involved in the formation of the nest-building behavior, an SNP (2464G > A) already described in the promoter region showed an association with individual differences in the initiation of hay carrying. The distribution of this SNP delivered an opposite result compared to domestic rabbits. Genotype (GG) with high uterine capacity was most frequent; the hereditary value of the trait was h2 = 0.10. Thus, progesterone receptor gene polymorphism may manifest in individual differences affecting breeding success in this species.

SUBMITTER: Benedek I 

PROVIDER: S-EPMC7552269 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Exploring the Genetic Background of the Differences in Nest-Building Behavior in European Rabbit.

Benedek Ildikó I   Altbӓcker Vilmos V   Zsolnai Attila A   Molnár Tamás T  

Animals : an open access journal from MDPI 20200904 9


Once a day, nursing and absentee mothering make the wild rabbit (<i>Oryctolagus cuniculus</i>) an ideal model animal for measuring differences in maternal behavior. Behavioral events and their hormonal regulation leading to parturition are well documented; however, the genetic background behind individual differences in this complex process is unknown. Decreased progesterone hormone level and the reduction of progesterone receptor activity are crucial to initiating the collection of nest materia  ...[more]

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2019-11-12 | PXD011080 | Pride