2020
DOI: 10.1016/j.ygeno.2019.02.003
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The transcriptome landscapes of ovary and three oviduct segments during chicken (Gallus gallus) egg formation

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Cited by 54 publications
(56 citation statements)
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References 60 publications
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“…To the best of our knowledge, the present study is the first deep-sequencing analysis of the laying hens’ uterus focused on cuticle deposition, which occurs just before oviposition. The differentially expressed genes identified in this study differ considerably from the results of previous studies that compared when an egg was in the uterus and when there was not [ 22 – 24 ]. We therefore believe that the experimental regimen applied here captures some of the unique events that are important at the very end of the egg forming process including those that result in cuticle deposition.…”
Section: Discussioncontrasting
confidence: 97%
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“…To the best of our knowledge, the present study is the first deep-sequencing analysis of the laying hens’ uterus focused on cuticle deposition, which occurs just before oviposition. The differentially expressed genes identified in this study differ considerably from the results of previous studies that compared when an egg was in the uterus and when there was not [ 22 – 24 ]. We therefore believe that the experimental regimen applied here captures some of the unique events that are important at the very end of the egg forming process including those that result in cuticle deposition.…”
Section: Discussioncontrasting
confidence: 97%
“…The presence of a functioning clock [ 33 ] in peripheral tissues is not new [ 34 ] and the elements of the clock have been observed before in the chicken uterus where they were seen to cycle [ 35 ]. PER2 was also differentially expressed in a NGS study comparing hen uteri 15 h apart [ 24 ]. Although not in the list of genes with the most significant differences in expression, we also found significant differences between the AVT and GNRH1 treated hens in the expression of PER2 ( P = 0.0028), CRY2 (ENSGALG00000008436; P = 0.0001), CRY1 (ENSGALG00000012638; P = 0.0002), CLOCK (ENSGALG00000013793; P = 0.001) and ARNTL (ENSGALG00000005378; P = 0.00002).…”
Section: Discussionmentioning
confidence: 99%
“…Multiple molecular actors involved in the homeostasis and transportation of minerals, especially calcium, the main constituent of the eggshell, have been identified [4,5]. More than 500 eggshell matrix proteins have also been reported [6,7] implicating a plethora of genes that knit together the complex protein scaffold and the mineral phase of the eggshell [5,8]. However, most of these discoveries provide only the genes expressed in a certain segment of the chicken oviduct, the principal organ for egg development, and consequently the overall mechanisms of eggshell development remain illusive.…”
Section: Introductionmentioning
confidence: 99%
“…A large number of studies about the molecular and biochemical events associated with morphological and functional recrudescence of the hen reproductive tract has been conducted; moreover, many studies have shown that the endocrine, as well as some genes, are crucial in the development and activity of the oviducts of birds (Hrabia et al, 2014; Jeong et al, 2017a, 2017b). At present, a number of studies are available regarding the molecular mechanisms behind the transcription level changes in the magnum during the different reproductive stages (Jeong et al, 2013; Khan et al, 2019; Z. Yin, Lian, et al, 2019; L. Yin, Yu, et al, 2019); however, little information is available regarding the molecular mechanisms behind the cellular changes in the bird magnum during the whole laying cycle.…”
Section: Introductionmentioning
confidence: 99%