Associations of VLDLR Gene Polymorphism (intron 11, 392C > T) with Egg Production and Weight in Japanese Quails (Coturnix coturnix japonica)
Yıl 2025,
Cilt: 66 Sayı: 1, 25 - 31, 30.06.2025
Halime Karaköse
,
Eymen Demir
,
Ümit Bilginer
,
Veli Atmaca
,
Bahar Argun Karslı
,
Taki Karslı
Öz
Objective: This study aimed to assess the association between the VLDRLR gene intron 11 (392 C>T) polymorphism and egg production and weight in quails.
Material and Methods: Egg yield and weight were recorded over 90 days for 191 Japanese quails, which were genotyped using the restriction fragment length polymorphism technique for the VLDLR gene variation.
Results: The VLDLR gene was polymorphic due to conserving all possible genotypes (TT, TC, and CC). The TT genotype was the most common with a frequency of 0.70, while the frequency of the TC and CC genotype were 0.16 and 0.14, respectively. The mean 90-day egg production was 78.31, 76.07, and 73.94 in TT, TC, and CC genotypes, respectively, while the mean egg weight ranged from 915.80 (CC genotype) to 939.19 (TT genotype). Association analysis revealed a significant relationship between the VLDLR genotypes and egg production traits (P<0.05), while no significant relationship was detected for egg weight.
Conclusion: This study showed that the TT genotype for VLDLR gene intron 11 (392 C>T) polymorphism can be used in marker-assisted selection studies in order to increase egg production in quails.
Keywords: Candidate genes, egg traits, genetic variation, MAS, PCR-RFLP
Etik Beyan
No ethical permission was required since DNA was extracted from shed feather samples of animals kept in individual cages.
Kaynakça
- Abdulwahid HS, Al-Hassani DH, Razuki WM. 2019. Associations of very low-density lipoprotein receptor (VLDLR) gene polymorphisms with egg production traits in Iraqi local brown chickens. Iraqi Journal of Agricultural Sciences, 2, 727-733.
- Ahmed LS, Al-Barzinji YMS. 2020. Three Candidate Genes and Its Association with Quantitative Variation of Egg Productıon Traits of Local Quail by Using PCR-RFLP. Iraqi Journal of Agricultural Sciences, 51, 124-131.
- Akarikiya, S.A, Dei HK, Mohammed A. 2022. Quail Production Systems, Prospects and Constraints in Ghana. Asia Pacific Journal of Sustainable Agriculture, Food and Energy, 10(2), 55-68.
- Al-Hassani DH, Razuki WM, Abdulwahid HS. 2023. Variations and Expression of Very Low-Density Lipoprotein Receptor (VLDLR) Mrna in the Liver and Ovary of a Low Egg Production Strain of Local Iraqi Hens. Iraqi Journal of Agricultural Sciences, 54(1): 114-123.
- Alkan S, Karabağ K, Galiç A, Karsli T, Balcioglu MS. 2010. Determination of body weight and some carcass traits in Japanese quails (Coturnix coturnix japonica) of different lines. Kafkas Universitesi Veteriner Fakultesi Dergisi, 16, 277-280.
- Alkan S, Karsli T, Karabag K, Galic A, Balcioglu MS. 2013. The effects of thermal manipulation during early and late embryogenesis on hatchability, hatching weight and body weight in Japanese quails (Coturnix coturnix japonica). Archives Animal Breeding, 56, 789-796.
- Balcioglu MS, Karsli T, Șahin E, Ulutas Z, Aksoy Y. 2014. Determination of calpastatin (CAST) gene polimorphism in some native sheep breeds reared in Turkey by PCR-RFLP method. Tarim Bilimler Dergisi, 4, 427-433.
- Bello N, Francino O, Sánchez A. 2001. Isolation of genomic DNA from feathers. Journal of Veterinary Diagnostic Investigation, 2, 162-164.
- Bello SF, Adeola AC, Nie Q. 2022. The study of candidate genes in the improvement of egg production in ducks-a review. Poultry Science, 7, 101850.
- Bozkaya F, Gurler S, Yerturk M. 2013. Investigation on the polymorphism of some loci by using PCR-RFLP in Japanese quails (Coturnix coturnix japonica) raised in different locations of Turkey. Kafkas Universitesi Veteriner Fakultesi Dergisi, 5, 761-766.
- Brown MS, Goldstein JL. 1986. A receptor-mediated pathway for cholesterol homeostasis. Science, 232:34-47.
- Cao DG, Zhou Y, Lei QX, Han HX, Li FW, Li GM, Lu Y, Wu B, Wang ZL. 2012. Associations of Very Low-Density Lipoprotein Receptor (VLDLR) gene polymorphisms with reproductive traits in a Chinese Indigenous chicken breed. Journal of Animal and Veterinary Advances, 19, 3662-3667.
- Demir E, Karsli BA, Karsli T, Balcioglu MS, 2020a. Determination of SacII and MboII polymorphisms in the Nerve Growth Factor (NGF) gene in four native Turkish goat populations. Mediterranean Agricultural Sciences, 1, 145-148.
- Demir E, Karsli T, Fidan HG, Karsli BA, Aslan M, Aktan S, Kamanli S, Karabag K, Semerci ES, Balcioglu MS. 2020b. Polymorphisms in some candidate genes are associated with egg yield and quality in five different white layer pure lines. Kafkas Universitesi Veteriner Fakultesi Dergisi, 6, 735-741.
- Faul F, Erdfelder E, Lang AG, Buchner A. 2007. G* Power 3: A flexible statistical power analysis program for the social, behavioral, and biomedical sciences. Behavior Research Methods, 39, 175-191.
- Hartl DL, Clark AG. 1989. Principles of Population Genetics. 2nd Edition, Sinauer Associates- Sunderland, Massachusetts, 116-540.
- Huang A, Isobe N, Obitsu T, Yoshimura Y. 2016. Expression of lipases and lipid receptors in sperm storage tubules and possible role of fatty acids in sperm survival in the hen oviduct. Theriogenology, 85(7), 1334-1342.
- Hussain MM. 2001. Structural, biochemical and signaling properties of the low-density lipoprotein receptor gene family. Frontiers in Bioscience, 6, D417-D428.
- Kadlec J, Hosnedlová B, Rehout V, Čítek J, Večerek L, Hanusová L. 2011. Insulin-like growth factor-I gene polymorphism and its association with growth and slaughter characteristics in broiler chickens. Journal of Agrobiology, 2. 157.
- Karsli T, Balcioglu MS. 2019. Genetic characterization and population structure of six brown layer pure lines using microsatellite markers. Asian-Australasian Journal of Animal Sciences, 1, 49.
- Karsli T, Balcioglu MS, Demir E, Fidan HG, Aslan M, Aktan S, Kamanli S, Karabag K, Sahin E. 2017. Determination of polymorphisms in IGF-I and NPY candidate genes associated with egg yield in pure layers chicken lines reared in the Ankara Poultry Research Institute. Türk Tarım Gıda Bilim ve Teknoloji Dergisi, 9, 1051-1056.
- Karsli T, Demir E, Fidan HG, Karsli BA, Aslan M, Aktan S, Kamanli S, Karabag K, Semerci ES, Balcioglu MS. 2020. Polymorphisms in candidate genes associated with egg yield and quality in brown layer pure lines. Mediterranean Agricultural Sciences, 3, 433-439.
- Karsli T, Fidan HG. 2019. Assessment of genetic diversity and conservation priorities among five White Leghorn Lines based on SSR markers. Animal Science Papers and Reports, 3, 311-322.
- Lan, LTT, Nhan NTH, Ngoc DTB, Tin TT, Anh LH, Xuan NH, Ngu, NT. 2017. Association analysis of candidate gene polymorphisms with egg production in Japanese quails (Coturnix japonica). Veterinary Integrative Sciences, 15(2), 117-125.
- Le Hir H, Nott A, Moore MJ. 2003. How introns influence and enhance eukaryotic gene expression. Trends in biochemical sciences, 28(4), 215-220.
- Li A, Sadasivam M, Ding JL. 2003. Receptor-ligand interaction between vitellogenin receptor (VtgR) and vitellogenin (Vtg), implications on low density lipoprotein receptor and apolipoprotein B/E: the first three ligand-binding repeats of VtgR interact with the amino-terminal region of Vtg. Journal of Biological Chemistry, 278(5), 2799-2806.
- Lin SL, Miller JD, Ying SY. 2006. Intronic microrna (mirna). BioMed Research International, (1), 026818.
- Liu G, Zeng M, Li X, Rong Y, Hu Z, Zhang H, Liu X. 2021. Expression and analysis of ESR1, IGF-1, FSH, VLDLR, LRP, LH, PRLR genes in Pekin duck and Black Muscovy duck. Gene, 769, 145183.
- Ma Y, Yao J, Zhou S, Mi Y, Tan X, Zhang C. 2020. Enhancing effect of FSH on follicular development through yolk formation and deposition in the low-yield laying chickens. Theriogenology, 157, 418-430.
- Narinc D, Karaman E, Aksoy T, Firat, MZ. 2013. Investigation of nonlinear Models to Describe Long-term Egg Production in Japanese Quail. Poultry Science, 92(6), 1676-1682.
- Nimpf J, Schneider WJ. 2000. From cholesterol transport to signal transduction: low density lipoprotein receptor, very low density lipoprotein receptor, and apolipoprotein E receptor-2. Biochimica et Biophysica Acta, 1529, 287–298
- Pan S, Wang C, Dong X, Chen M, Xing H, Zhang T. 2017. Association of VLDLR haplotypes with abdominal fat trait in ducks. Archives Animal Breeding, 2, 175-182.
- Raschia MA, Nani JP, Maizon DO, Beribe MJ, Amadio AF, Poli MA. 2018. Single nucleotide polymorphisms in candidate genes associated with milk yield in Argentinean Holstein and Holstein x Jersey cows. Journal of Animal Science and Technology, 1, 1-10.
- Riethoven JJM. 2010. Regulatory regions in DNA: promoters, enhancers, silencers, and insulators. Computational biology of transcription factor binding, 33-42.RIFKI M, CAHYADI M, NUHRIAWANGSA AMP, DEWANTI R, WATI AK. 2021. The association of BMPR1B and PRL polymorphisms with egg productivity and quality traits in Japanese quails. Poultry Science Journal, 2021, 9(2): 263-271
- Roy BG, Saxena VK, Roy U, Kataria MC. 2020. PCR-RFLP study of candidate genes for egg production in layer chicken. Archives of Animal & Poultry Sciences, 3, 52-59.
- Salvante KG, Rosemary GL, Walzem L, Williams TD. 2007. Characterization of very-low-density lipoprotein particle diameter dynamics in relation to egg production in a passerine bird. Journal of Experimental Biology, 210, 1064-1074
- Thu HDT, Binh NTT, Duc LD, Huu DB, Nhung DT, Xuan CN, Viet LN, Thai AN, Quang ML, Pham DK, Hoang TN. 2020. Indigenous Lien Minh chicken of Vietnam: Phenotypic characteristics and single nucleotide polymorphisms of GH. IGFBP and PIT candidate genes related to growth traits. Biodiversitas Journal of Biological Diversity, 11, 5344-5352.
- Thu NTA, Hung LT, Lan LTT, Phong NG, Loc HT, Ngu NR. 2021. The Association between POU1F1 Gene Polymorphisms and Growth as well as Carcass Traits of Noi Native Chickens. Journal of Advanced Veterinary Research, 11, 36-40.
- Wang C, Li S, Yu W, Xin Q, Li C, Feng Y, Peng X, Gong Y. 2011. Cloning and expression profiling of the VLDLR gene Associated with egg performance in Duck (Anas platyrhynchos). Genetics Selection Evolution, 43:29.
- Wu Y, Pi JS, Pan AL, Du JP, Shen J, Pu YJ, Liang ZH. 2015. Two novel linkage SNPs of VLDLR gene intron 11 are associated with laying traits in two quail populations. Archives Animal Breeding, 51, 1-6.
- Yeh FC, Yang RC, Boyle T, Ye ZH, Mao JX. 1999. POPGENE, Version 1.32: The User Friendly Software for Population Genetic Analysis; Molecular Biology and Biotechnology Centre, University of Alberta: Edmonton, AB, Canada,
- Zhao NN, Lin S, Wang ZQ, Zhang TJ, 2015. VLDLR gene polymorphism associated with abdominal fat in Gaoyou domestic duck breed. Czech Journal of Animal Science, 4, 178-184.
- Zhou Y, Han HX, Lei QX, Gao JB, Liu W, Li FW, Liu J, Cao DG. 2020. Associations of Diplotypes of Vldlr Gene with Egg Production Traits in Laiwu Black Chickens. Pakistan Journal of Zoology, 6, 2371.
Japon Bıldırcınlarında (Coturnix coturnix japonica) VLDLR Gen Polimorfizminin (11 intron, 392C > T) Yumurta Üretimi ve Ağırlığı ile İlişkisi
Yıl 2025,
Cilt: 66 Sayı: 1, 25 - 31, 30.06.2025
Halime Karaköse
,
Eymen Demir
,
Ümit Bilginer
,
Veli Atmaca
,
Bahar Argun Karslı
,
Taki Karslı
Öz
Amaç: Bu çalışma, Japon bıldırcınlarında VLDLR geninin intron 11 (392 C>T) polimorfizmi ile yumurta üretimi ve ağırlığı arasındaki ilişkiyi değerlendirmeyi amaçlamıştır
Materyal ve Metot: VLDLR gen varyaysyonu için resatriksiyon fragment uzuluğu polimorfizmi tekniğiyle gengenotiplendirilen 191 Japon bıldırcınında 90 günlük yumurta verimi ve ağırlığı verisi kaydedilmiştir.
Bulgular: Muhmetel bütün genotipleri (TT, TC ve CC) içerdiğinden dolayı VLDLR geninin polimorfik olduğu belirlenmiştir. En yaygın genotipin 0.70 frekans ile TT olduğu, TC ve CC genotip frekanslarının ise sırasıyla 0.16 ve 0.14 olduğu belirlenmiştir. 90 günlük yumurta üretimi ortalamasının TT, TC ve CC genotipleri için sırasıyla 78.31, 76.07 ve 73.94 olduğu, yumurta ağırlığı ortalamasının ise 915.80 (CC genotipi) ile 939.19 (TT genotipi) aralığında değiştiği gözlemlenmiştir. Yapılan ilişki analizi, VLDLR genotipleriyle yumurta üreteimi arasında önemli bir ilişkinin olduğunu (P<0.05), yurmurta ağırlığı açısından ise herhangi bir ilişkinin olmadığını göstermiştir.
Sonuç: Bu çalışma, VLDLR geninin intron 11 (392 C>T) polimorfizmini için TT genotipinin japon bldırcınlarında yumurta üretimini arttırmak için uygulanacak olan marker destekli seleksiyon çalışmalarında kullanılabileceğini göstermiştir.
Anahtar sözcükler: Aday genler, yumurta özellikleri, genetik çeşitlilik, MDS, PZR-RFLP
Kaynakça
- Abdulwahid HS, Al-Hassani DH, Razuki WM. 2019. Associations of very low-density lipoprotein receptor (VLDLR) gene polymorphisms with egg production traits in Iraqi local brown chickens. Iraqi Journal of Agricultural Sciences, 2, 727-733.
- Ahmed LS, Al-Barzinji YMS. 2020. Three Candidate Genes and Its Association with Quantitative Variation of Egg Productıon Traits of Local Quail by Using PCR-RFLP. Iraqi Journal of Agricultural Sciences, 51, 124-131.
- Akarikiya, S.A, Dei HK, Mohammed A. 2022. Quail Production Systems, Prospects and Constraints in Ghana. Asia Pacific Journal of Sustainable Agriculture, Food and Energy, 10(2), 55-68.
- Al-Hassani DH, Razuki WM, Abdulwahid HS. 2023. Variations and Expression of Very Low-Density Lipoprotein Receptor (VLDLR) Mrna in the Liver and Ovary of a Low Egg Production Strain of Local Iraqi Hens. Iraqi Journal of Agricultural Sciences, 54(1): 114-123.
- Alkan S, Karabağ K, Galiç A, Karsli T, Balcioglu MS. 2010. Determination of body weight and some carcass traits in Japanese quails (Coturnix coturnix japonica) of different lines. Kafkas Universitesi Veteriner Fakultesi Dergisi, 16, 277-280.
- Alkan S, Karsli T, Karabag K, Galic A, Balcioglu MS. 2013. The effects of thermal manipulation during early and late embryogenesis on hatchability, hatching weight and body weight in Japanese quails (Coturnix coturnix japonica). Archives Animal Breeding, 56, 789-796.
- Balcioglu MS, Karsli T, Șahin E, Ulutas Z, Aksoy Y. 2014. Determination of calpastatin (CAST) gene polimorphism in some native sheep breeds reared in Turkey by PCR-RFLP method. Tarim Bilimler Dergisi, 4, 427-433.
- Bello N, Francino O, Sánchez A. 2001. Isolation of genomic DNA from feathers. Journal of Veterinary Diagnostic Investigation, 2, 162-164.
- Bello SF, Adeola AC, Nie Q. 2022. The study of candidate genes in the improvement of egg production in ducks-a review. Poultry Science, 7, 101850.
- Bozkaya F, Gurler S, Yerturk M. 2013. Investigation on the polymorphism of some loci by using PCR-RFLP in Japanese quails (Coturnix coturnix japonica) raised in different locations of Turkey. Kafkas Universitesi Veteriner Fakultesi Dergisi, 5, 761-766.
- Brown MS, Goldstein JL. 1986. A receptor-mediated pathway for cholesterol homeostasis. Science, 232:34-47.
- Cao DG, Zhou Y, Lei QX, Han HX, Li FW, Li GM, Lu Y, Wu B, Wang ZL. 2012. Associations of Very Low-Density Lipoprotein Receptor (VLDLR) gene polymorphisms with reproductive traits in a Chinese Indigenous chicken breed. Journal of Animal and Veterinary Advances, 19, 3662-3667.
- Demir E, Karsli BA, Karsli T, Balcioglu MS, 2020a. Determination of SacII and MboII polymorphisms in the Nerve Growth Factor (NGF) gene in four native Turkish goat populations. Mediterranean Agricultural Sciences, 1, 145-148.
- Demir E, Karsli T, Fidan HG, Karsli BA, Aslan M, Aktan S, Kamanli S, Karabag K, Semerci ES, Balcioglu MS. 2020b. Polymorphisms in some candidate genes are associated with egg yield and quality in five different white layer pure lines. Kafkas Universitesi Veteriner Fakultesi Dergisi, 6, 735-741.
- Faul F, Erdfelder E, Lang AG, Buchner A. 2007. G* Power 3: A flexible statistical power analysis program for the social, behavioral, and biomedical sciences. Behavior Research Methods, 39, 175-191.
- Hartl DL, Clark AG. 1989. Principles of Population Genetics. 2nd Edition, Sinauer Associates- Sunderland, Massachusetts, 116-540.
- Huang A, Isobe N, Obitsu T, Yoshimura Y. 2016. Expression of lipases and lipid receptors in sperm storage tubules and possible role of fatty acids in sperm survival in the hen oviduct. Theriogenology, 85(7), 1334-1342.
- Hussain MM. 2001. Structural, biochemical and signaling properties of the low-density lipoprotein receptor gene family. Frontiers in Bioscience, 6, D417-D428.
- Kadlec J, Hosnedlová B, Rehout V, Čítek J, Večerek L, Hanusová L. 2011. Insulin-like growth factor-I gene polymorphism and its association with growth and slaughter characteristics in broiler chickens. Journal of Agrobiology, 2. 157.
- Karsli T, Balcioglu MS. 2019. Genetic characterization and population structure of six brown layer pure lines using microsatellite markers. Asian-Australasian Journal of Animal Sciences, 1, 49.
- Karsli T, Balcioglu MS, Demir E, Fidan HG, Aslan M, Aktan S, Kamanli S, Karabag K, Sahin E. 2017. Determination of polymorphisms in IGF-I and NPY candidate genes associated with egg yield in pure layers chicken lines reared in the Ankara Poultry Research Institute. Türk Tarım Gıda Bilim ve Teknoloji Dergisi, 9, 1051-1056.
- Karsli T, Demir E, Fidan HG, Karsli BA, Aslan M, Aktan S, Kamanli S, Karabag K, Semerci ES, Balcioglu MS. 2020. Polymorphisms in candidate genes associated with egg yield and quality in brown layer pure lines. Mediterranean Agricultural Sciences, 3, 433-439.
- Karsli T, Fidan HG. 2019. Assessment of genetic diversity and conservation priorities among five White Leghorn Lines based on SSR markers. Animal Science Papers and Reports, 3, 311-322.
- Lan, LTT, Nhan NTH, Ngoc DTB, Tin TT, Anh LH, Xuan NH, Ngu, NT. 2017. Association analysis of candidate gene polymorphisms with egg production in Japanese quails (Coturnix japonica). Veterinary Integrative Sciences, 15(2), 117-125.
- Le Hir H, Nott A, Moore MJ. 2003. How introns influence and enhance eukaryotic gene expression. Trends in biochemical sciences, 28(4), 215-220.
- Li A, Sadasivam M, Ding JL. 2003. Receptor-ligand interaction between vitellogenin receptor (VtgR) and vitellogenin (Vtg), implications on low density lipoprotein receptor and apolipoprotein B/E: the first three ligand-binding repeats of VtgR interact with the amino-terminal region of Vtg. Journal of Biological Chemistry, 278(5), 2799-2806.
- Lin SL, Miller JD, Ying SY. 2006. Intronic microrna (mirna). BioMed Research International, (1), 026818.
- Liu G, Zeng M, Li X, Rong Y, Hu Z, Zhang H, Liu X. 2021. Expression and analysis of ESR1, IGF-1, FSH, VLDLR, LRP, LH, PRLR genes in Pekin duck and Black Muscovy duck. Gene, 769, 145183.
- Ma Y, Yao J, Zhou S, Mi Y, Tan X, Zhang C. 2020. Enhancing effect of FSH on follicular development through yolk formation and deposition in the low-yield laying chickens. Theriogenology, 157, 418-430.
- Narinc D, Karaman E, Aksoy T, Firat, MZ. 2013. Investigation of nonlinear Models to Describe Long-term Egg Production in Japanese Quail. Poultry Science, 92(6), 1676-1682.
- Nimpf J, Schneider WJ. 2000. From cholesterol transport to signal transduction: low density lipoprotein receptor, very low density lipoprotein receptor, and apolipoprotein E receptor-2. Biochimica et Biophysica Acta, 1529, 287–298
- Pan S, Wang C, Dong X, Chen M, Xing H, Zhang T. 2017. Association of VLDLR haplotypes with abdominal fat trait in ducks. Archives Animal Breeding, 2, 175-182.
- Raschia MA, Nani JP, Maizon DO, Beribe MJ, Amadio AF, Poli MA. 2018. Single nucleotide polymorphisms in candidate genes associated with milk yield in Argentinean Holstein and Holstein x Jersey cows. Journal of Animal Science and Technology, 1, 1-10.
- Riethoven JJM. 2010. Regulatory regions in DNA: promoters, enhancers, silencers, and insulators. Computational biology of transcription factor binding, 33-42.RIFKI M, CAHYADI M, NUHRIAWANGSA AMP, DEWANTI R, WATI AK. 2021. The association of BMPR1B and PRL polymorphisms with egg productivity and quality traits in Japanese quails. Poultry Science Journal, 2021, 9(2): 263-271
- Roy BG, Saxena VK, Roy U, Kataria MC. 2020. PCR-RFLP study of candidate genes for egg production in layer chicken. Archives of Animal & Poultry Sciences, 3, 52-59.
- Salvante KG, Rosemary GL, Walzem L, Williams TD. 2007. Characterization of very-low-density lipoprotein particle diameter dynamics in relation to egg production in a passerine bird. Journal of Experimental Biology, 210, 1064-1074
- Thu HDT, Binh NTT, Duc LD, Huu DB, Nhung DT, Xuan CN, Viet LN, Thai AN, Quang ML, Pham DK, Hoang TN. 2020. Indigenous Lien Minh chicken of Vietnam: Phenotypic characteristics and single nucleotide polymorphisms of GH. IGFBP and PIT candidate genes related to growth traits. Biodiversitas Journal of Biological Diversity, 11, 5344-5352.
- Thu NTA, Hung LT, Lan LTT, Phong NG, Loc HT, Ngu NR. 2021. The Association between POU1F1 Gene Polymorphisms and Growth as well as Carcass Traits of Noi Native Chickens. Journal of Advanced Veterinary Research, 11, 36-40.
- Wang C, Li S, Yu W, Xin Q, Li C, Feng Y, Peng X, Gong Y. 2011. Cloning and expression profiling of the VLDLR gene Associated with egg performance in Duck (Anas platyrhynchos). Genetics Selection Evolution, 43:29.
- Wu Y, Pi JS, Pan AL, Du JP, Shen J, Pu YJ, Liang ZH. 2015. Two novel linkage SNPs of VLDLR gene intron 11 are associated with laying traits in two quail populations. Archives Animal Breeding, 51, 1-6.
- Yeh FC, Yang RC, Boyle T, Ye ZH, Mao JX. 1999. POPGENE, Version 1.32: The User Friendly Software for Population Genetic Analysis; Molecular Biology and Biotechnology Centre, University of Alberta: Edmonton, AB, Canada,
- Zhao NN, Lin S, Wang ZQ, Zhang TJ, 2015. VLDLR gene polymorphism associated with abdominal fat in Gaoyou domestic duck breed. Czech Journal of Animal Science, 4, 178-184.
- Zhou Y, Han HX, Lei QX, Gao JB, Liu W, Li FW, Liu J, Cao DG. 2020. Associations of Diplotypes of Vldlr Gene with Egg Production Traits in Laiwu Black Chickens. Pakistan Journal of Zoology, 6, 2371.