Comparison of the fine structure of hair in the ancient Lena horse (†Equus lenensis Russanov 1968) and the domestic horse (Equus caballus caballus Linnaeus 1758) of native northern breeds
| Dublin Core | PKP Metadata Items | Metadata for this Document | |
| 1. | Title | Title of document | Comparison of the fine structure of hair in the ancient Lena horse (†Equus lenensis Russanov 1968) and the domestic horse (Equus caballus caballus Linnaeus 1758) of native northern breeds |
| 2. | Creator | Author's name, affiliation, country | N. N. Spasskaya; Zoological Museum, Lomonosov Moscow State University; Russian Federation |
| 2. | Creator | Author's name, affiliation, country | O. F. Chernova; A. N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences; Russian Federation |
| 2. | Creator | Author's name, affiliation, country | N. V. Vdovina; N. Laverov Federal Center for Integrated Arctic Research, Ural Branch, Russian Academy of Sciences – Arkhangelsk Research Institute of Agriculture (FCIArctic’ Branch in the Primorskiy District; Russian Federation |
| 2. | Creator | Author's name, affiliation, country | I. B. Yurieva; N. Laverov Federal Center for Integrated Arctic Research, Ural Branch, Russian Academy of Sciences – Arkhangelsk Research Institute of Agriculture (FCIArctic’ Branch in the Primorskiy District; Russian Federation |
| 3. | Subject | Discipline(s) | |
| 3. | Subject | Keyword(s) | horse; aboriginal breeds; guard hair; medulla; adaptation; SEM; morphometry |
| 4. | Description | Abstract | Using SEM and morphometry, the fine structure of guard hairs and the elements of their medulla were compared in the Lena horse (Equus lenensis) and the domestic horse (E. caballus caballus) of five breeds. A number of features of hair fine structures have been identified, most clearly revealed when comparing horses of the northern (Mezen, Pechora, Yakut) and southern (Arabian, Akhal-Teke) groups of breeds. Seasonal changes in the structure of hair in horses of northern breeds (thickening of the hair medulla and an increase in the volume of its air cavities) indicate an increase in the heat-protecting properties of wool in winter, this being of adaptive significance. Both Pleistocene and recent domestic horses are shown to have developed convergent morphological adaptations of wool to low air temperatures. |
| 5. | Publisher | Organizing agency, location | The Russian Academy of Sciences |
| 6. | Contributor | Sponsor(s) |
Government of the Russian Federation (121032300105-0) Government of the Russian Federation (121122200210-0) Government of the Russian Federation (122011700241-5) |
| 7. | Date | (DD-MM-YYYY) | 15.06.2024 |
| 8. | Type | Status & genre | Peer-reviewed Article |
| 8. | Type | Type | Research Article |
| 9. | Format | File format | |
| 10. | Identifier | Uniform Resource Identifier | https://rjdentistry.com/0044-5134/article/view/654278 |
| 10. | Identifier | Digital Object Identifier (DOI) | 10.31857/S0044513424060077 |
| 10. | Identifier | eLIBRARY Document Number (EDN) | uilzst |
| 11. | Source | Title; vol., no. (year) | Zoologičeskij žurnal; Vol 103, No 6 (2024) |
| 12. | Language | English=en | ru |
| 13. | Relation | Supp. Files |
Fig. 1. The scheme of measurements of microstructures of the guard hairs of horses. Transverse and longitudinal sections of the rod: D and d – respectively the maximum and minimum diameter of the hair, microns; M – the maximum diameter of the core strand, microns; S and s – respectively the cross–sectional area of the rod and the core strand, mm2; ss – the area of a separate air cavity of the core, mm2; Br - the width of the hair in cross section, microns; br – the width of the core strand in cross–section, microns; ss" - the area of a separate air cavity of the core, micm2. Intact hair: H is the height of the cuticle scales along the stem, microns; W is the width of the hair shaft at the place where the scales are measured, microns. Calculated indices, %: d/D, M/D, s/S, ss/S, br/Br, ss"/br, H/W. (479KB) Fig. 2. Microstructure of the withers of the Lena horse: A – Maksunuoh mummy, B – Ducar mummy. From top to bottom – cross sections, longitudinal sections of the rod. SAM's data. The scale is 10 microns. (691KB) Fig. 3. Microstructure of the withers guard hairs of the domestic horse of the Mezen (A, B) and Akhal-Teke (C) breeds. A is the awn of winter wool; B, C is the awn of summer wool. From top to bottom – cross sections, longitudinal sections of the rod, cuticle ornament. SAM's data. The scale is 10 microns. (781KB) |
| 14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
| 15. | Rights | Copyright and permissions |
Copyright (c) 2024 Russian Academy of Sciences |