The comprehensive mechanisms underlying nonhierarchical follicular development in geese (Anser cygnoides)

Liu, Hehe; Zhang, Wenjie; Li, Qingqing; Liu, Junying; Zhang, Tao; Zhou, Tianyu; Liang, Li; Wang, Jiwen; Xu, Hengyong; He, Hua

doi:10.1016/j.anireprosci.2015.06.007

Cited by 12 publications

(15 citation statements)

References 49 publications

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“…Some studies have shown that the degeneration of follicles is associated with autophagy, apoptosis and homeostasis imbalances, including the altered hormones and ROS level7. Furthermore, the transcriptomic results indicate that the development or degeneration of follicles requires the coordinated actions of abundant genes controlled at the transcriptional and posttranscriptional levels27. In addition, miRNAs also function in the regulation of follicular development to regulate the bird broodiness18.…”

Section: Discussionmentioning

confidence: 99%

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Transcriptome analysis of follicles reveals the importance of autophagy and hormones in regulating broodiness of Zhedong white goose

Yu¹,

Lou²,

Zhao³

2016

Sci Rep

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Broodiness, a maternal behavior and instinct for natural breeding in poultry, inhibits egg production and affects the poultry industry. Phenotypic and physiological factors influencing broodiness in poultry have been extensively studied, but the molecular regulation mechanism of broodiness remains unclear. Effective research strategies focusing on broodiness are hindered by limited understanding of goose developmental biology. Here we established the transcriptomes of goose follicles at egg-laying and broody stages by Illumina HiSeq platform and compared the sequenced transcriptomes of three types of follicles (small white, large white and small yellow). It was found that there were 92 up-regulated and 84 down-regulated transcription factors and 101 up-regulated and 51 down-regulated hormone-related genes. Many of these genes code for proteins involved in hormone response, follicular development, autophagy, and oxidation. Moreover, the contents of progesterone and estradiol in follicles were altered, and the autophagy levels of follicles were enhanced during the broody stage. These results suggest that hormone- and autophagy-signaling pathways are critical for controlling broodiness in the goose. We demonstrated that transcriptome analysis of egg-laying and broody Zhedong white goose follicles provided novel insights into broodiness in birds.

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Section: Discussionmentioning

confidence: 99%

“…The successful sequencing of the goose genome opened a prelude to more detailed study of geese21. To date, RNA-Seq has been applied in geese, mainly based on the ovarian2223, spleen24, exocrine25, hepatic26, follicles27, and mixed tissues2. Identified genes are responsible for reproductive biology, development and metabolism processes, and laying performance.…”

mentioning

confidence: 99%

Transcriptome analysis of follicles reveals the importance of autophagy and hormones in regulating broodiness of Zhedong white goose

Yu¹,

Lou²,

Zhao³

2016

Sci Rep

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“…In recent years, high-throughput sequencing have been performed using animal reproductive tissues, such as endometrium 20 , ovaries 21 , placenta 33 , follicles 34 and granulosa cells 35 , to identify the genes and genetic loci that affect litter size. Compared to litter size, the studies on the molecular genetic mechanism of estrus expression have seldom been reported.…”

Section: Discussionmentioning

confidence: 99%

“…They have obvious differences in shape and biological activity during estrous cycle 21, 37, 56 . In the ovarian follicles, sex steroids are synthesized from granulosa and thecal cells in the follicular wall 34 . Previous study found that two signaling networks (Notch, SLIT/ROBO and PI3K signaling, and ITGB5 and extracellular matrix signaling) were associated with follicular development through extracellular signal related kinases (ERKs) 57 .…”

Section: Discussionmentioning

confidence: 99%

“…In the present study, most DEGs in the pathways affected by different stages of estrus within breeds were activated and overexpressed at estrus. These pathways also have important roles in modulating the balance of integrating cell proliferation, energy supplementation, nutrient delivery, and steroid hormone synthesis, which are important processes for sustaining normal folliculogenesis 34 and estrus.…”

Section: Discussionmentioning

confidence: 99%

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Genome-wide differential mRNA expression profiles in follicles of two breeds and at two stages of estrus cycle of gilts

Chu

Zhou

et al. 2017

Sci Rep

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Estrus expression by gilts and sows is hereditable and important for heat detection. To better understand the molecular biological mechanisms of estrus expression in gilts, the mRNA expression profiles of follicular tissue from Large White gilts in diestrus (LD, n = 3) and estrus (LE, n = 3), and Chinese indigenous Mi gilts in diestrus (MD, n = 2) and estrus (ME, n = 3) were investigated using RNA sequencing. We detected 122,804-335,295 SNPs, 6,140-14,947 InDel and 12 types of AS events (39.57% TSS, 34.90% TTS) in 11 samples. A total of 2,838 differentially expressed genes (DEGs) were found in LD vs MD, LE vs ME, LE vs LD, or ME vs MD comparisons. Two DEGs (ACP5 and PIGS) were observed in all comparisons. Two new genes (ENSSSCG00000028235 and ENSSSCG00000021903) were exclusively expressed in Mi and Large White gilts, respectively. Bioinformatics analyses indicate that these DEGs are involved in single-organism process, catalytic activity, cell adhesion and enriched in ECM-receptor interaction, olfactory transduction, ovarian steroidogenesis, steroid biosynthesis and CAMs signaling pathways. These results of RNA-Seq have provided important information for screening the key functional genes or molecular markers of estrus expression in gilts.

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Distinctive gut microbial community structure in both the wild and farmed Swan goose (Anser cygnoides)

Wen

Zheng

Sharshov

et al. 2016

J. Basic Microbiol.

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Swan goose (Anser cygnoides) is currently one of the most popular economic wildfowl for rare birds breeding industries in several provinces of China. However, the farmed Swan geese, reared in artificial environment and fed on both natural and artificial diets, display a reduced reproductive rate compared to wild species. Little is known about the gut microbiota of this species, which could play a role in nutrient and energy metabolism, immune homeostasis and reproduction. The present comparative study was designed to provide a first characterization of gut microbial communities related to both wild and farmed Swan geese by 16 S rRNA sequences using the Illumina HiSeq platform. The results showed that dominant microbial components in both groups consisted of Firmicutes, Proteobacteria, Bacteroidetes and Actinobacteria. The abundances of these four phyla were not statistically different between the groups. At the genus level, significantly decreased abundance of Clostridium and increased abundance of SMB53, Enterococcus and Paenibacillus were observed in farmed group compared to wild group. The marked differences of genus level group-specific microbes create a baseline for future Swan goose microbiology research and make a valuable contribution to forming relationships between gut microbiota and domestic bird reproduction.

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The comprehensive mechanisms underlying nonhierarchical follicular development in geese (Anser cygnoides)

Cited by 12 publications

References 49 publications

Transcriptome analysis of follicles reveals the importance of autophagy and hormones in regulating broodiness of Zhedong white goose

Transcriptome analysis of follicles reveals the importance of autophagy and hormones in regulating broodiness of Zhedong white goose

Genome-wide differential mRNA expression profiles in follicles of two breeds and at two stages of estrus cycle of gilts

Distinctive gut microbial community structure in both the wild and farmed Swan goose (Anser cygnoides)

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