Genetic studies in poultry

Punnett, R. C.; Bailey, P. G.

doi:10.1007/bf02983546

Cited by 22 publications

(12 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This could provide important statistics to reveal the regulatory mechanism network of green eggshell formation. Numerous studies suggest that the formation of eggshell color is regulated by many genes rather than a single gene [ 39 , 40 ], which is in accord with our results. Interestingly, ABCG2 is one of the DEGs from the shell gland of Youxian duck green eggshell line which is up-regulated expression in its gene family.…”

Section: Discussionsupporting

confidence: 92%

Study of formation of green eggshell color in ducks through global gene expression

Lan

et al. 2018

PLoS ONE

View full text Add to dashboard Cite

The green eggshell color produced by ducks is a threshold trait that can be influenced by various factors, such as hereditary, environment and nutrition. The aim of this study was to investigate the genetic regulation of the formation of eggs with green shells in Youxian ducks. We performed integrative analysis of mRNAs and miRNAs expression profiling in the shell gland samples from ducks by RNA-Seq. We found 124 differentially expressed genes that were associated with various pathways, such as the ATP-binding cassette (ABC) transporter and solute carrier supper family pathways. A total of 31 differentially expressed miRNAs were found between ducks laying green eggs and white eggs. KEGG pathway analysis of the predicted miRNA target genes also indicated the functional characteristics of these miRNAs; they were involved in the ABC transporter pathway and the solute carrier (SLC) supper family. Analysis with qRT-PCR was applied to validate the results of global gene expression, which showed a correlation between results obtained by RNA-seq and RT-qPCR. Moreover, a miRNA-mRNA interaction network was established using correlation analysis of differentially expressed mRNA and miRNA. Compared to ducks that lay white eggs, ducks that lay green eggs include six up-regulated miRNAs that had regulatory effects on 35 down-regulated genes, and seven down-regulated miRNAs which influenced 46 up-regulated genes. For example, the ABC transporter pathway could be regulated by expressing gga-miR-144-3p (up-regulated) with ABCG2 (up-regulated) and other miRNAs and genes. This study provides valuable information about mRNA and miRNA regulation in duck shell gland tissues, and provides foundational information for further study on the eggshell color formation and marker-assisted selection for Youxian duck breeding.

show abstract

Section: Discussionsupporting

confidence: 92%

Study of formation of green eggshell color in ducks through global gene expression

Lan

et al. 2018

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…have decayed on Hispaniola and Mauritius following release from parasitism. Previous work on this and other bird species suggests that the observed changes in egg color and spotting were evolutionary rather than environmentally induced (Punnett and Bailey 1920;Punnett 1933;Goodman and Shealy 1977;Collias 1984;Mikšík et al 1996;Hunt et al 1999).…”

Section: Fig 2 Examples Of Village Weaver Eggs From Two Study Sitesmentioning

confidence: 61%

Persistence of Egg Recognition in the Absence of Cuckoo Brood Parasitism: Pattern and Mechanism

Lahti

2006

Evol

View full text Add to dashboard Cite

Broad ecological shifts can render previously adaptive traits nonfunctional. It is an open question as to how and how quickly nonfunctional traits decay once the selective pressures that favored them are removed. The village weaverbird (Ploceus cucullatus) avoids brood parasitism by rejecting foreign eggs. African populations have evolved high levels of within-clutch uniformity as well as individual distinctiveness in egg color and spotting, a combination that facilitates identification of foreign eggs. In a companion study, I showed that these adaptations in egg appearance declined following introductions of weavers into habitats devoid of egg-mimicking brood parasites. Here, I use experimental parasitism in two ancestral and two introduced populations to test for changes in egg rejection behavior while controlling for changes in egg appearance. Introduced populations reject foreign eggs less frequently, but the ability of source and introduced populations to reject foreign eggs does not differ after controlling for the evolution of egg color and spotting. Therefore, egg rejection behavior in introduced populations of the village weaver has been compromised by changes in egg appearance, but there has been no significant decline in the birds' ability to recognize foreign eggs. This result reconciles earlier studies on this system and provides insights into the ways behavior can change over generations, especially in the context of recognition systems and the avoidance of brood parasitism.

show abstract

“…Classical genetic studies implicate at least two loci in heavy foot feathering in chickens ( Punnett and Bailey, 1918 ; Lambert and Knox, 1929 ; Warren, 1948 ; Somes, 1992 ), although the molecular genetic origins of the trait remain unknown. Previously, a chromosome region containing Pitx1 was implicated in foot feathering in silkie chickens ( Dorshorst et al, 2010 ).…”

Section: Resultsmentioning

confidence: 99%

Molecular shifts in limb identity underlie development of feathered feet in two domestic avian species

Domyan

Kronenberg

Infante

et al. 2016

eLife

145

View full text Add to dashboard Cite

Birds display remarkable diversity in the distribution and morphology of scales and feathers on their feet, yet the genetic and developmental mechanisms governing this diversity remain unknown. Domestic pigeons have striking variation in foot feathering within a single species, providing a tractable model to investigate the molecular basis of skin appendage differences. We found that feathered feet in pigeons result from a partial transformation from hindlimb to forelimb identity mediated by cis-regulatory changes in the genes encoding the hindlimb-specific transcription factor Pitx1 and forelimb-specific transcription factor Tbx5. We also found that ectopic expression of Tbx5 is associated with foot feathers in chickens, suggesting similar molecular pathways underlie phenotypic convergence between these two species. These results show how changes in expression of regional patterning genes can generate localized changes in organ fate and morphology, and provide viable molecular mechanisms for diversity in hindlimb scale and feather distribution.DOI: http://dx.doi.org/10.7554/eLife.12115.001

show abstract

Genetic studies in poultry

Cited by 22 publications

References 2 publications

Study of formation of green eggshell color in ducks through global gene expression

Study of formation of green eggshell color in ducks through global gene expression

Persistence of Egg Recognition in the Absence of Cuckoo Brood Parasitism: Pattern and Mechanism

Molecular shifts in limb identity underlie development of feathered feet in two domestic avian species

Contact Info

Product

Resources

About