1
|
Gahlyan RK, Vohra V, Chhotaray S, Kataria RS. Diversity assessment of a lesser known buffalo population from Central India and its comparative evaluation reveals presence of sufficient genetic variation and absence of selection. Anim Biotechnol 2024; 35:2305550. [PMID: 38270453 DOI: 10.1080/10495398.2024.2305550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Planned breeding and conservation strategies for a lesser-known population require an assessment of complete genetic diversity and population structure analysis in addition to its morphometric characteristics. In the present study, a comparative analysis of the genetic structure of a rare buffalo population, namely Chhattisgarhi, was extensively studied using a panel of FAO-recommended microsatellite markers along with well-established breeds namely Murrah, Nili-Ravi, Gojri, Kalahandi, and Nagpuri. Mode shift analysis indicated the absence of genetic bottleneck in the recent past. Assessment of genetic diversity indices across all loci indicated the presence of sufficient genetic variation within and between populations. Analysis of molecular variance between the six different buffalo populations attributed 19.05% of the variations to between-population differentiation. Cluster analyses using DAPC and Bayesian approach along with the phylogenetic tree based on UPGMA grouped six populations into three groups. The Chhattisgarhi population was revealed to be genetically closer to Nagpuri and Kalahandi populations. The study reveals the presence of sufficient genetic diversity within the Chhattisgarhi population and indicates the absence of a systematic selection program. We suggest improvement and conservation programs should be planned for this breed in the near future through short-term selection.
Collapse
Affiliation(s)
- Rajesh Kumar Gahlyan
- Animal Genetics Breeding Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Vikas Vohra
- Animal Genetics Breeding Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Supriya Chhotaray
- Animal Genetics Breeding Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - R S Kataria
- ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, India
| |
Collapse
|
2
|
Bayraktar M, Cebeci Z, Gökçe G. Analysing the genetic diversity and population structure of five native Turkish cattle breeds using SNP data. Reprod Domest Anim 2024; 59:e14545. [PMID: 38426375 DOI: 10.1111/rda.14545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/30/2024] [Accepted: 02/15/2024] [Indexed: 03/02/2024]
Abstract
The conservation and sustainable utilization of cattle genetic resources necessitate a comprehensive understanding of their genetic diversity and population structure. This study provides an analysis of five native Turkish cattle breeds: Anatolian Black (ANB), Turkish Grey (TUR), Anatolian Southern Yellow (ASY), East Anatolian Red (EAR), and South Anatolian Red (SAN) using 50 K SNP data. These breeds were compared with three European breeds, Simmental (SIM), Holstein (HOL), and Jersey (JER), and three Asian Zebu breeds: Arabic Zebu (ZAR), Nelore (NEL), and Red Sindhi (RSI). Genetic diversity indices demonstrated moderate heterogeneity among the breeds, with TUR exhibiting the highest observed heterozygosity (Ho = 0.35). Wright's Fst values indicated significant genetic differentiation, particularly between Turkish breeds and both European (Fst = 0.035-0.071) and Asian breeds (Fst = 0.025-0.150). Principal component analysis distinguished the unique genetic profiles of each breed cluster. Admixture analysis revealed degrees of shared genetic ancestry, suggesting historical gene flow between Turkish, European, and Asian breeds. Analysis of molecular variance (AMOVA) attributed approximately 58% of the variation to population differences. Nei's genetic distances highlighted the closer genetic relatedness within Turkish breeds (distance ranges between 0.032 and 0.046) and suggested a more relative affinity of TUR with European breeds. The study's phylogenetic assessments elucidate the nuanced genetic relationships among these breeds, with runs of homozygosity (ROH) analysis indicating patterns of ancestral relatedness and moderate levels of inbreeding, particularly evident in Turkish breeds. Our findings provide valuable insights into the genetic landscape of Turkish cattle, offering a crucial foundation for informed conservation and breeding strategies aimed at preserving these breeds' genetic integrity and heritage.
Collapse
Affiliation(s)
- Mervan Bayraktar
- Division of Biometry and Genetics, Department of Animal Science, Faculty of Agriculture, Çukurova University, Adana, Turkey
| | - Zeynel Cebeci
- Division of Biometry and Genetics, Department of Animal Science, Faculty of Agriculture, Çukurova University, Adana, Turkey
| | - Gökhan Gökçe
- Division of Animal Husbandry and Breeding, Department of Animal Science, Faculty of Agriculture, Çukurova University, Adana, Turkey
| |
Collapse
|
3
|
Fagbamila IO, Ramon E, Lettini AA, Muhammad M, Longo A, Antonello K, Aworh MK, Kwaga JKP, Abdu PA, Umoh JU, Kabir JA, Ricci A, Barco L. Assessing the mechanisms of multi-drug resistant non-typhoidal Salmonella (NTS) serovars isolated from layer chicken farms in Nigeria. PLoS One 2023; 18:e0290754. [PMID: 37676896 PMCID: PMC10484460 DOI: 10.1371/journal.pone.0290754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 08/15/2023] [Indexed: 09/09/2023] Open
Abstract
BACKGROUND In Nigeria, there have been reports of widespread multiple antimicrobial resistance (AMR) amongst Salmonella isolated from poultry. To mitigate the impact of mortality associated with Salmonella on their farms, farmers resort to the use of antimicrobials without sound diagnostic advice. We conducted this study to describe the AMR patterns, mechanisms and genetic similarities within some Salmonella serovars isolated from different layer farms. METHOD We determine the AMR profiles of two hundred Salmonella isolates, selected based on frequency, serovar, and geographical and sample type distribution. We also assessed the mechanisms of multi-drug resistance for specific genetic determinants by using PCR protocols and gene sequence analysis. Pulsed-field gel electrophoresis (PFGE) was conducted on seven selected serovars to determine their genetic relatedness. RESULTS Of 200 isolates, 97 (48.5%) revealed various AMR profiles, with the multiple antibiotic resistance (MAR) index ranging from 0.07-0.5. Resistance to ciprofloxacin was common in all the multi-drug resistant isolates, while all the isolates were susceptible to cefotaxime, ceftazidime, and meropenem. Genotypic characterization showed the presence of resistance genes as well as mutations in the nucleotide genes with subsequent amino acid substitutions. Fifteen isolates (43%) of S. Kentucky were indistinguishable, but were isolated from four different states in Nigeria (Ogun, n = 9; Kaduna, n = 6; Plateau, n = 3, and: Bauchi, n = 2). PFGE revealed 40 pulsotype patterns (Kentucky, n = 12; Larochelle, n = 9; Virchow, n = 5; Saintpaul, n = 4; Poona, n = 3; Isangi, n = 2, and; Nigeria, n = 2). CONCLUSION This study recorded strictly related but diversely distributed Salmonella serovars with high AMR rates in poultry. We recommend strict regulation on antimicrobial use and regular monitoring of AMR trends among bacteria isolated from animals and humans to inform public policy.
Collapse
Affiliation(s)
| | - Elena Ramon
- WOAH and National Reference Laboratory for Salmonellosis, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, PD, Italy
| | - Antonia A. Lettini
- WOAH and National Reference Laboratory for Salmonellosis, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, PD, Italy
| | - Maryam Muhammad
- Bacterial Research Division, National Veterinary Research Institute, Vom, Plateau State, Nigeria
| | - Alessandra Longo
- WOAH and National Reference Laboratory for Salmonellosis, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, PD, Italy
| | - Keti Antonello
- WOAH and National Reference Laboratory for Salmonellosis, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, PD, Italy
| | - Mabel K. Aworh
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States of America
| | - Jacob K. P. Kwaga
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Paul A. Abdu
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Jarleth U. Umoh
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Junaidu A. Kabir
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Antonia Ricci
- WOAH and National Reference Laboratory for Salmonellosis, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, PD, Italy
| | - Lisa Barco
- WOAH and National Reference Laboratory for Salmonellosis, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, PD, Italy
| |
Collapse
|
4
|
Chessari G, Criscione A, Tolone M, Bordonaro S, Rizzuto I, Riggio S, Macaluso V, Moscarelli A, Portolano B, Sardina MT, Mastrangelo S. High-density SNP markers elucidate the genetic divergence and population structure of Noticiana sheep breed in the Mediterranean context. Front Vet Sci 2023; 10:1127354. [PMID: 37205231 PMCID: PMC10185747 DOI: 10.3389/fvets.2023.1127354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 04/13/2023] [Indexed: 05/21/2023] Open
Abstract
Among livestock species, sheep have played an early major role in the Mediterranean area. Italy has a long history of sheep breeding and, despite a dramatic contraction in numbers, still raise several local populations that may represent a unique source of genetic diversity. The Noticiana is a breed of the south-eastern part of Sicily appreciated both for its dairy products and for its resistance to harsh environment. In this study, the high-density Illumina Ovine SNP600K BeadChip array was used for the first genome-wide characterization of 48 individuals of Noticiana sheep to investigate its diversity, the genome structure and the relationship within the context of worldwide and Italian breeds. Moreover, the runs of homozygosity (ROH) pattern and the pairwise FST-outliers were examined. Noticiana reported moderate levels of genetic diversity. The high percentage of short and medium length ROH segments (93% under 4 Mb) is indicative of a within breed relatedness dating back to ancient times, despite the absence of management for the mating plans and the reduced population size. In the worldwide context, the Southern Italian, Spanish and Albanian breeds overlapped in a macro cluster which also included the Noticiana sheep. The results highlighted ancestral genetic components of Noticiana shared with Comisana breed, and showed the clear separation from the other Italian sheep. This is likely the consequence of the combined effects of genetic drift, small population size and reproductive isolation. ROH islands and FST-outliers approaches in Noticiana identified genes and QTLs involved in milk and meat production, as well as related to the local adaptation, and therefore are consistent with the phenotypic traits of the studied breed. Although a wider sampling could be useful to deepen the genomic survey on Noticiana, these results represent a crucial starting point for the characterization of an important local genetic resource, with a view of supporting the local economy and preserving the biodiversity of the sheep species.
Collapse
Affiliation(s)
- Giorgio Chessari
- Dipartimento Agricoltura, Alimentazione e Ambiente, University of Catania, Catania, Italy
| | - Andrea Criscione
- Dipartimento Agricoltura, Alimentazione e Ambiente, University of Catania, Catania, Italy
| | - Marco Tolone
- Dipartimento Scienze Agrarie, Alimentari e Forestali, University of Palermo, Palermo, Italy
| | - Salvatore Bordonaro
- Dipartimento Agricoltura, Alimentazione e Ambiente, University of Catania, Catania, Italy
| | - Ilaria Rizzuto
- Dipartimento Scienze Agrarie, Alimentari e Forestali, University of Palermo, Palermo, Italy
| | - Silvia Riggio
- Dipartimento Scienze Agrarie, Alimentari e Forestali, University of Palermo, Palermo, Italy
| | - Vito Macaluso
- Dipartimento Scienze Agrarie, Alimentari e Forestali, University of Palermo, Palermo, Italy
| | - Angelo Moscarelli
- Dipartimento Scienze Agrarie, Alimentari e Forestali, University of Palermo, Palermo, Italy
| | - Baldassare Portolano
- Dipartimento Scienze Agrarie, Alimentari e Forestali, University of Palermo, Palermo, Italy
| | - Maria Teresa Sardina
- Dipartimento Scienze Agrarie, Alimentari e Forestali, University of Palermo, Palermo, Italy
| | - Salvatore Mastrangelo
- Dipartimento Scienze Agrarie, Alimentari e Forestali, University of Palermo, Palermo, Italy
- *Correspondence: Salvatore Mastrangelo,
| |
Collapse
|
5
|
Genetic Characterization and Alternative Preservation Ways of Locally Adapted Sheep Breeds: Cases of Private and Public Sheep Sectors in Tunisia and Italy. BIOLOGY 2022; 11:biology11111623. [PMID: 36358324 PMCID: PMC9687707 DOI: 10.3390/biology11111623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 10/31/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022]
Abstract
Simple Summary The genetic characterization of native sheep breeds from the Tunisian-Italian Mediterranean corridor, the earliest westward introduction route of sheep breeding from the domestication center, was carried out using microsatellite markers in order to compare the genetic diversity level between both Mediterranean sides’ local sheep breeds, and to investigate their level of risk for conservation purposes. Sampling concerned both private and public/institutional farms of all the native Tunisian breeds in the case of the southern Mediterranean side, and one center Italian and the Venetian native breeds from the northern side. The results revealed that the genetic diversity level of the Tunisian native breeds was higher than that of the Italian ones, with a lower inbreeding level. The comparison between private and public farms in terms of genetic diversity, consanguinity, and conservation decisions highlighted the superiority of the public/institutional breeding management strategies over private ones in both Tunisian and Italian cases. The present study illustrated the efficiency of genomic characterization in making genetic diversity evaluations and preservation decisions of native and well-adapted sheep breeds in both developing and developed countries’ rearing conditions. Abstract Non-commercialized sheep breeds known as local or native breeds are well adapted to their environmental constraints and constitute precious genetic resources that need prioritization for genetic diversity characterization and preservation. The aim of the present study was to assess the genetic diversity level and the related preservation decisions of very old and traditional native Mediterranean sheep breeds from Tunisia and Italy using 17 microsatellite markers. In total, 975 sheep were sampled from five Tunisian, one Center Italian, and four Venetian native breeds. Both private and publicly available farms were considered for each breed for breeding strategies’ comparison purposes. The microsatellite set used was highly informative (PIC = 0.80 ± 0.08), with a total of 383 alleles. Moderate genetic differentiation was revealed between the native sheep of the two Mediterranean sides (global overall loci FST = 0.081). The genetic diversity level was higher in the case of the Tunisian native breeds compared to the Italian ones, as evidenced by higher mean allelic richness, higher expected and observed heterozygosities, and lower inbreeding levels. Priority for conservation suggestions was carried out for each private or public breed population based on the contribution of each population to the diversity of the whole data. The four Venetian breeds, already undergoing conservation, the Tunisian dairy breed, and the very ancient Maghrebian breed, would be favored for conservation. In conclusion, our results highlighted the importance of the analyzed Mediterranean native sheep breeds as valuable inherited genetic reservoirs and supported previous conservation decisions made for the threatened breeds.
Collapse
|
6
|
Ben Sassi-Zaidy Y, Mohamed-Brahmi A, Chaouch M, Maretto F, Cendron F, Charfi-Cheikhrouha F, Ben Abderrazak S, Djemali M, Cassandro M. Historical Westward Migration Phases of Ovis aries Inferred from the Population Structure and the Phylogeography of Occidental Mediterranean Native Sheep Breeds. Genes (Basel) 2022; 13:genes13081421. [PMID: 36011332 PMCID: PMC9408117 DOI: 10.3390/genes13081421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/22/2022] [Accepted: 08/04/2022] [Indexed: 01/18/2023] Open
Abstract
In this study, the genetic relationship and the population structure of western Mediterranean basin native sheep breeds are investigated, analyzing Maghrebian, Central Italian, and Venetian sheep with a highly informative microsatellite markers panel. The phylogeographical analysis, between breeds’ differentiation level (Wright’s fixation index), gene flow, ancestral relatedness measured by molecular coancestry, genetic distances, divergence times estimates and structure analyses, were revealed based on the assessment of 975 genotyped animals. The results unveiled the past introduction and migration history of sheep in the occidental Mediterranean basin since the early Neolithic. Our findings provided a scenario of three westward sheep migration phases fitting properly to the westward Neolithic expansion argued by zooarcheological, historical and human genetic studies.
Collapse
Affiliation(s)
- Yousra Ben Sassi-Zaidy
- Laboratory of Diversity, Management and Conservation of Biological Systems, LR18ES06, Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis 2092, Tunisia
- Department of Agronomy, Animal, Food, Natural Resources and Environment, University of Padova, 35020 Legnaro Padova, Italy
- Laboratory of Animal Genetic and Feed Resources Research, Department of Animal Science, Institut National Agronomique de Tunis (INAT), University of Carthage, Tunis-Mahragène Tunis 2078, Tunisia
- Correspondence: (Y.B.S.-Z.); (F.C.); Tel.: +39-049-8272871 (F.C.); Fax: +39-049-8272633 (F.C.)
| | - Aziza Mohamed-Brahmi
- Laboratory of Agricultural Production Systems Sustainability in the North Western Region of Tunisia, Department of Animal Production, Ecole Supérieure d’Agriculture du Kef Boulifa, University of Jendouba, Le Kef 7119, Tunisia
| | - Melek Chaouch
- Laboratory of Medical Parasitology, Biotechnology and Biomolecules (LR11IPT06), Institut Pasteur de Tunis, Tunis 1002, Tunisia
- Laboratory of Bioinformatics, Biomathematics and Biostatistics (LR16IPT09), Institut Pasteur de Tunis, Tunis 1002, Tunisia
| | - Fabio Maretto
- Department of Agronomy, Animal, Food, Natural Resources and Environment, University of Padova, 35020 Legnaro Padova, Italy
| | - Filippo Cendron
- Department of Agronomy, Animal, Food, Natural Resources and Environment, University of Padova, 35020 Legnaro Padova, Italy
- Correspondence: (Y.B.S.-Z.); (F.C.); Tel.: +39-049-8272871 (F.C.); Fax: +39-049-8272633 (F.C.)
| | - Faouzia Charfi-Cheikhrouha
- Laboratory of Diversity, Management and Conservation of Biological Systems, LR18ES06, Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis 2092, Tunisia
| | - Souha Ben Abderrazak
- Laboratory of Medical Parasitology, Biotechnology and Biomolecules (LR11IPT06), Institut Pasteur de Tunis, Tunis 1002, Tunisia
| | - Mnaour Djemali
- Laboratory of Animal Genetic and Feed Resources Research, Department of Animal Science, Institut National Agronomique de Tunis (INAT), University of Carthage, Tunis-Mahragène Tunis 2078, Tunisia
| | - Martino Cassandro
- Department of Agronomy, Animal, Food, Natural Resources and Environment, University of Padova, 35020 Legnaro Padova, Italy
| |
Collapse
|
7
|
Trujano-Chavez MZ, Ruíz-Flores A, López-Ordaz R, Pérez-Rodríguez P. Genetic diversity in reproductive traits of Braunvieh cattle determined with SNP markers. Vet Med Sci 2022; 8:1709-1720. [PMID: 35545927 PMCID: PMC9297803 DOI: 10.1002/vms3.836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Braunvieh is an important dual‐purpose breed in the Mexican tropics. The study of its genetic diversity is key to implementing genetic improvement programs. This study was conducted to determine genetic diversity of reproductive traits in a Mexican Braunvieh beef cattle population using single nucleotide polymorphisms in candidate genes. Information from 24 genes with 52 intra‐genic loci reported in literature to be associated with productive life, pregnancy rate and cow and heifer conception rate of 150 Braunvieh males and females was considered. Observed heterozygosity (Ho) revealed high genetic diversity for the studied traits, Ho = 0.42 ± 0.087, relative to that of other populations of the same breed. Cluster analyses were carried out using the Ward and K‐means algorithms. These analyses revealed high genetic diversity that was observed in the biplot of non‐metric multi‐dimensional scaling. It was found that clustering strategy allowed visualisation of distant groups by genotype but not by favourable alleles in all the loci. We found that the genes CSNK1E, DNAH11, DSC2, IBSP and OCLN affected most of the traits in our study and they were highly informative. Therefore, they represent a potential resource for selection and crossbreeding programs of the traits studied in Braunvieh. The analyses showed that the Mexican Braunvieh population has a high level of genetic diversity, arguably due to decades‐long adaptation to the Mexican tropics.
Collapse
Affiliation(s)
| | - Agustín Ruíz-Flores
- Posgrado en Producción Animal, Universidad Autónoma Chapingo, Texcoco, Estado de México, Mexico
| | - Rufino López-Ordaz
- Posgrado en Producción Animal, Universidad Autónoma Chapingo, Texcoco, Estado de México, Mexico
| | - Paulino Pérez-Rodríguez
- Socio Economía Estadística e Informática, Posgrado en Producción Animal, Texcoco, Estado de México, Mexico
| |
Collapse
|
8
|
Mukhina V, Svishcheva G, Voronkova V, Stolpovsky Y, Piskunov A. Genetic Diversity, Population Structure and Phylogeny of Indigenous Goats of Mongolia Revealed by SNP Genotyping. Animals (Basel) 2022; 12:ani12030221. [PMID: 35158545 PMCID: PMC8833718 DOI: 10.3390/ani12030221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 11/24/2022] Open
Abstract
Simple Summary We performed SNP genotyping of indigenous goats of Mongolia to explore their demographic history in the global context and to estimate their genetic risks. Recently, these risks have become a subject of concern due to recent climatic disasters and uncontrolled massive breeding. Various clustering methods demonstrated close genetic relations among Mongolian, Russian, Chinese, and West Asian breeds. Mongolian goats themselves exhibited low to moderate estimates of genetic differentiation. We identified genetic features highlighting the distinct origin and breeding history of Mongolian goat breeds, as well as traces of artificial selection and geographic isolation. However, none of them met formal criteria to be considered as endangered. Abstract Mongolian goats are of great interest for studying ancient migration routes and domestication, and also represent a good model of adaptability to harsh environments. Recent climatic disasters and uncontrolled massive breeding endangered the valuable genetic resources of Mongolian goats and raised the question of their conservation status. Meanwhile, Mongolian goats have never been studied on genomic scale. We used Illumina Goat SNP50 to estimate genetic risks in five Mongolian goat breeds (Buural, Ulgii Red, Gobi GS, Erchim, Dorgon) and explored phylogenic relationships among these populations and in the context of other breeds. Various clustering methods showed that Mongolian goats grouped with other Asian breeds and were especially close to some neighboring Russian and Chinese breeds. The Buural breed showed the lowest estimates of inbreeding and exhibited the shortest genetic distances within the other Mongolian breeds, especially, to Ulgii Red and Gobi GS. These three breeds formed a single core group, being weakly differentiated from each other. Among them, Gobi GS displayed obvious signs of inbreeding probably resulted from artificial selection pressure. Dorgon and especially Erchim goats stand apart from the other Mongolian breeds according to various types of analyses, and bear unique features pointing to different breeding histories or distinct origins of these breeds. All populations showed strong decline in effective population size. However, none of them met formal criteria to be considered as endangered breeds. The SNP data obtained in this study improved the knowledge of Mongolian goat breeds and could be used in future management decisions in order to preserve their genetic diversity.
Collapse
Affiliation(s)
- Vera Mukhina
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 119333 Moscow, Russia; (V.M.); (G.S.); (V.V.); (Y.S.)
- Institute for Information Transmission Problems, Russian Academy of Sciences, 127051 Moscow, Russia
| | - Gulnara Svishcheva
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 119333 Moscow, Russia; (V.M.); (G.S.); (V.V.); (Y.S.)
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Valery Voronkova
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 119333 Moscow, Russia; (V.M.); (G.S.); (V.V.); (Y.S.)
| | - Yurii Stolpovsky
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 119333 Moscow, Russia; (V.M.); (G.S.); (V.V.); (Y.S.)
| | - Aleksei Piskunov
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 119333 Moscow, Russia; (V.M.); (G.S.); (V.V.); (Y.S.)
- Correspondence:
| |
Collapse
|
9
|
Aitnazarov RB, Mishakova TM, Yudin NS. Assessment of genetic diversity and phylogenetic relationships in Black Pied cattle in the Novosibirsk Region using microsatellite markers. Vavilovskii Zhurnal Genet Selektsii 2022; 25:831-838. [PMID: 35088018 PMCID: PMC8761576 DOI: 10.18699/vj21.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/17/2021] [Accepted: 10/17/2021] [Indexed: 12/02/2022] Open
Abstract
There are currently over a thousand indigenous cattle breeds well adapted to local habitat conditions thanks
to their long history of evolution and breeding. Identification of the genetic variations controlling the adaptation of
local cattle breeds for their further introduction into the genome of highly productive global breeds is a matter of great
relevance. Studying individual populations of the same breed with the use of microsatellite markers makes it possible
to assess their genetic diversity, relationships, and breed improvement potential. Although the Black Pied breed is the
most common dairy cattle breed in Russia, there are only a few studies on genetic diversity in local Black Pied populations
in some Russian regions. The goal of the present study was to analyze the genetic diversity in Black Pied cattle
populations in the Novosibirsk Region and compare them with other Russian populations; to identify significantly divergent
populations with a view to preserving them under the programs aimed at maintaining the genetic diversity of
the domestic Black Pied breed. DNA samples from 4788 animals of the Black Pied breed from six breeding enterprises
in the Novosibirsk Region have been studied using 11 microsatellite markers. No significant differences in genetic
variability parameters were found between individual populations. Private alleles have been identified in five out of
six populations. Five populations have shown inbreeding coefficient values (FIS) below zero, which indicates heterozygosity
excess. The population distribution test, principal component analysis, FST and DEST values, cluster analysis,
and phylogenetic analysis have revealed two populations genetically distinct from the others. Essentially, the genetic
diversity parameters of the six studied Black Pied cattle populations from the Novosibirsk Region show no significant
differences from other Russian populations of the breed. Excess heterozygosity is observed in most breeding enterprises,
which is a sign of a low inbreeding rate. To maintain the genetic diversity of the Russian Black Pied cattle, we
recommend focusing on the two populations with significant genetic distinctions from the others.
Collapse
Affiliation(s)
- R. B. Aitnazarov
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences
| | - T. M. Mishakova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences
| | - N. S. Yudin
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences
| |
Collapse
|