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Gallus gallus breed:Langshan chinken and recessive white feather chicken

ABSTRACT: The whole genome sequencing of cloned-like chicken produced by allogeneic transplantation of induced primordial germ cells derived from somatic cells.

PROVIDER: PRJNA667794 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12827900_1.fastq.gz	Fastqsanger.gz
	SRR12827900_2.fastq.gz	Fastqsanger.gz
	SRR12827901_1.fastq.gz	Fastqsanger.gz
	SRR12827901_2.fastq.gz	Fastqsanger.gz
	SRR12827902_1.fastq.gz	Fastqsanger.gz

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Production of Cloned-like Chicken by Allogeneic Transplantation of Somatic Cells Induced Primordial Germ Cells

Project description:Production of Cloned-like Chicken by Allogeneic Transplantation of Somatic Cells Induced Primordial Germ Cells

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Production of Cloned-like Chicken by Allogeneic Transplantation of Somatic Cells Induced Primordial Germ Cells

Project description:Generation of genetically uniformed individuals from somatic cells is an effective approach for large-scale reproduction of elite varieties and a powerful tool for restoration of endangered species. However, this technique has never been realized in avian due to their oviparous reproduction pattern. In this study, we produced cloned-like chicken by allogeneic transplantation of somatic cells induced primordial germ cells (PGCs). Oct4, Sox2, Nanog and Lin28A (OSNL) factors were employed to reprogram primary chicken embryo fibroblasts (CEF) to pluripotent stem cells (iPS), in which DNA demethylation and histone acetylation were found to increase the efficiency to 13.00%. The obtained iPS presented embryonic stem cell like characters and were further induced to PGCs by BMP4/BMP8b/EGF, in which histone acetylation and glycolysis inhibition elevated the induction rate to 17.30% and 16.41%, respectively. With the optimized system, we induced Black Langshan Chicken (Gallus domestiaus, black feather) donated CEF to PGCs and transplanted them into the Recessive White Chicken (white feather) embryos. The transplanted cells migrated into the genital ridges and produced functional sperm or oocytes. The sexual matured recipients were self-crossed, with 189/509 (37.13%) cloned-like chicken produced. Microsatellite analysis confirmed their DNA inheritance from the black donor chicken. Thus, we demonstrated, for the first time, the feasibility of avian cloning from somatic cells.

2021-03-16 | GSE159511 | GEO

Gallus gallus strain:white Leghorn (M/O), Fayoumi (GSP, GSN/1, PNP)

Project description:transcriptome analyses of cultured chicken primordial germ cells

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Project description:MPSS profiling of embryonic gonad and primordial germ cells

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Gallus gallus white isthmus transcriptome

Project description:The Del-Mar 14K chip was used to interrogate differential expression of transcripts in the white isthmus (WI) compared with the adjacent magnum (Mg) and uterine (Ut) segments of the hen oviduct. Differential expression of genes common to both comparisons (WI/Mg and WI/Ut) was detected for 204 annotated proteins. Of these, 58 genes were overexpressed in both WI/Mg and WI/Ut, and are therefore considered to be the most interesting candidates for WI - specific functions. Additionally, general analysis revealed 135 clones hybridizing to overexpressed transcripts (WI/Mg + WI/Ut), and corresponding to 102 NCBI annotatated non-redundant Gallus gallus gene ID~s. This combined analysis revealed that structural proteins highly over-expressed in white isthmus were collagen X (COL10A1), Fibrillin (FBN1) and Cysteine Rich Eggshell Membrane Protein (CREMP). In addition, genes encoding collagen-processing enzymes were over-expressed, as were proteins known to regulate disulfide cross-linking, suggesting that coordinated upregulation of gene networks in the white isthmus is associated with eggshell membrane fibre formation. IPA interactome analysis reinforces the key role of the estrogen receptor and SMAD3 in mediating gene regulation during eggshell membrane synthesis. These results will assist with development of selection strategies to improve eggshell quality and food safety of the table egg. Keywords: Laying hen, eggshell, oviduct, Isthmus expression, cDNA microarray, indirect cDNA labelling, Alexa Fluor dyes Keywords: Expression profiling by array

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Genomic organization and molecular phylogenies of the beta (beta) keratin multigene family in the chicken (Gallus gallus) and zebra finch (Taeniopygia guttata): implications for feather evolution.

Project description:BackgroundThe epidermal appendages of reptiles and birds are constructed of beta (beta) keratins. The molecular phylogeny of these keratins is important to understanding the evolutionary origin of these appendages, especially feathers. Knowing that the crocodilian beta-keratin genes are closely related to those of birds, the published genomes of the chicken and zebra finch provide an opportunity not only to compare the genomic organization of their beta-keratins, but to study their molecular evolution in archosaurians.ResultsThe subfamilies (claw, feather, feather-like, and scale) of beta-keratin genes are clustered in the same 5' to 3' order on microchromosome 25 in chicken and zebra finch, although the number of claw and feather genes differs between the species. Molecular phylogenies show that the monophyletic scale genes are the basal group within birds and that the monophyletic avian claw genes form the basal group to all feather and feather-like genes. Both species have a number of feather clades on microchromosome 27 that form monophyletic groups. An additional monophyletic cluster of feather genes exist on macrochromosome 2 for each species. Expression sequence tag analysis for the chicken demonstrates that all feather beta-keratin clades are expressed.ConclusionsSimilarity in the overall genomic organization of beta-keratins in Galliformes and Passeriformes suggests similar organization in all Neognathae birds, and perhaps in the ancestral lineages leading to modern birds, such as the paravian Anchiornis huxleyi. Phylogenetic analyses demonstrate that evolution of archosaurian epidermal appendages in the lineage leading to birds was accompanied by duplication and divergence of an ancestral beta-keratin gene cluster. As morphological diversification of epidermal appendages occurred and the beta-keratin multigene family expanded, novel beta-keratin genes were selected for novel functions within appendages such as feathers.

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Hypoxia effect on embryonic hearts of Tibetan Chicken, Dwarf Recessive White Chicken and Shouguang Chicken

Project description:Adaptation to hypoxia is a complicated and important physiological course for organisms, but the genetic mechanism underlying the adaptation is not fully understood yet. Tibetan Chicken (T), an indigenous chicken breed in China which inhabit in high areas with an altitude above 2,900 meters. Shouguang Chicken(S) and Dwarf Recessive White Chicken (DRW), two lowland chicken breeds, were used as control groups. The heart was the first functional organ to develop during the embryonic development. Furthermore, the heart is an efficient energy converter utilizing the most appropriate fuel for a given environment. Therefore, GeneChip® Chicken Genome Array was employed to identify the differentially expressed genes in embryonic hearts of Tibetan Chicken and two lowland chicken breeds in both hypoxic and normoxic incubating environments with a genome wide profile. Keywords: stress response

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