Genetic variations for the eggshell crystal structure revealed by genome-wide association study in chickens

Abstract Background Eggshell is a bio-ceramic material comprising columnar calcite (CaCO3) crystals and organic proteinaceous matrix. The size, shape and orientation of the CaCO3 crystals influence the microstructural properties of chicken eggshells. However, the genetic architecture underlying eggs...

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Autores principales: Quanlin Li, Zhongyi Duan, Congjiao Sun, Jiangxia Zheng, Guiyun Xu, Ning Yang
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Lenguaje:EN
Publicado: BMC 2021
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Acceso en línea:https://doaj.org/article/d3babd1d368c4ad580bd01436b8eb406
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spelling oai:doaj.org-article:d3babd1d368c4ad580bd01436b8eb4062021-11-08T10:57:35ZGenetic variations for the eggshell crystal structure revealed by genome-wide association study in chickens10.1186/s12864-021-08103-11471-2164https://doaj.org/article/d3babd1d368c4ad580bd01436b8eb4062021-11-01T00:00:00Zhttps://doi.org/10.1186/s12864-021-08103-1https://doaj.org/toc/1471-2164Abstract Background Eggshell is a bio-ceramic material comprising columnar calcite (CaCO3) crystals and organic proteinaceous matrix. The size, shape and orientation of the CaCO3 crystals influence the microstructural properties of chicken eggshells. However, the genetic architecture underlying eggshell crystal polymorphism remains to be elucidated. Results The integral intensity of the nine major diffraction peaks, total integral intensity and degree of orientation of the crystals were measured followed by a genome-wide association study in 839 F2 hens. The results showed that the total integral intensity was positively correlated with the eggshell strength, eggshell thickness, eggshell weight, mammillary layer thickness and effective layer thickness. The SNP-based heritabilities of total integral intensity and degree of orientation were 0.23 and 0.06, respectively. The 621 SNPs located in the range from 55.6 to 69.1 Mb in GGA1 were significantly associated with TA. PLCZ1, ABCC9, ITPR2, KCNJ8, CACNA1C and IAPP, which are involved in the biological process of regulating cytosolic calcium ion concentration, can be suggested as key genes regulating the total integral intensity. Conclusions The findings greatly advance the understanding of the genetic basis underlying the crystal ultrastructure of eggshell quality and thus will have practical significance in breeding programs for improving eggshell quality.Quanlin LiZhongyi DuanCongjiao SunJiangxia ZhengGuiyun XuNing YangBMCarticleChickenEggshellCrystal structureX-ray diffractionGWASBiotechnologyTP248.13-248.65GeneticsQH426-470ENBMC Genomics, Vol 22, Iss 1, Pp 1-12 (2021)
institution DOAJ
collection DOAJ
language EN
topic Chicken
Eggshell
Crystal structure
X-ray diffraction
GWAS
Biotechnology
TP248.13-248.65
Genetics
QH426-470
spellingShingle Chicken
Eggshell
Crystal structure
X-ray diffraction
GWAS
Biotechnology
TP248.13-248.65
Genetics
QH426-470
Quanlin Li
Zhongyi Duan
Congjiao Sun
Jiangxia Zheng
Guiyun Xu
Ning Yang
Genetic variations for the eggshell crystal structure revealed by genome-wide association study in chickens
description Abstract Background Eggshell is a bio-ceramic material comprising columnar calcite (CaCO3) crystals and organic proteinaceous matrix. The size, shape and orientation of the CaCO3 crystals influence the microstructural properties of chicken eggshells. However, the genetic architecture underlying eggshell crystal polymorphism remains to be elucidated. Results The integral intensity of the nine major diffraction peaks, total integral intensity and degree of orientation of the crystals were measured followed by a genome-wide association study in 839 F2 hens. The results showed that the total integral intensity was positively correlated with the eggshell strength, eggshell thickness, eggshell weight, mammillary layer thickness and effective layer thickness. The SNP-based heritabilities of total integral intensity and degree of orientation were 0.23 and 0.06, respectively. The 621 SNPs located in the range from 55.6 to 69.1 Mb in GGA1 were significantly associated with TA. PLCZ1, ABCC9, ITPR2, KCNJ8, CACNA1C and IAPP, which are involved in the biological process of regulating cytosolic calcium ion concentration, can be suggested as key genes regulating the total integral intensity. Conclusions The findings greatly advance the understanding of the genetic basis underlying the crystal ultrastructure of eggshell quality and thus will have practical significance in breeding programs for improving eggshell quality.
format article
author Quanlin Li
Zhongyi Duan
Congjiao Sun
Jiangxia Zheng
Guiyun Xu
Ning Yang
author_facet Quanlin Li
Zhongyi Duan
Congjiao Sun
Jiangxia Zheng
Guiyun Xu
Ning Yang
author_sort Quanlin Li
title Genetic variations for the eggshell crystal structure revealed by genome-wide association study in chickens
title_short Genetic variations for the eggshell crystal structure revealed by genome-wide association study in chickens
title_full Genetic variations for the eggshell crystal structure revealed by genome-wide association study in chickens
title_fullStr Genetic variations for the eggshell crystal structure revealed by genome-wide association study in chickens
title_full_unstemmed Genetic variations for the eggshell crystal structure revealed by genome-wide association study in chickens
title_sort genetic variations for the eggshell crystal structure revealed by genome-wide association study in chickens
publisher BMC
publishDate 2021
url https://doaj.org/article/d3babd1d368c4ad580bd01436b8eb406
work_keys_str_mv AT quanlinli geneticvariationsfortheeggshellcrystalstructurerevealedbygenomewideassociationstudyinchickens
AT zhongyiduan geneticvariationsfortheeggshellcrystalstructurerevealedbygenomewideassociationstudyinchickens
AT congjiaosun geneticvariationsfortheeggshellcrystalstructurerevealedbygenomewideassociationstudyinchickens
AT jiangxiazheng geneticvariationsfortheeggshellcrystalstructurerevealedbygenomewideassociationstudyinchickens
AT guiyunxu geneticvariationsfortheeggshellcrystalstructurerevealedbygenomewideassociationstudyinchickens
AT ningyang geneticvariationsfortheeggshellcrystalstructurerevealedbygenomewideassociationstudyinchickens
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