نتایج جستجو برای: camelidae
تعداد نتایج: 84 فیلتر نتایج به سال:
—Morphological adaptations may indicate increased specialization (narrowing of ecological niche) or expansion of the suite of lifestyles available to an organism (increasing niche breadth). Hypsodonty in mammals generally has been interpreted as a specialization into a grazing niche from a browsing niche. Here I examine the feeding strategy of the extinct hypsodont camel Hemiauchenia through an...
introduction camels belong to the family of camelidae, suborder of tylopoda, order of artiodactyla and class of mammalians. the family camelidae has two old world species, double-humped camel (camelus bactrianus) and single-humped camel (camelus dromedaries) and four new world (tribe lamini) species, guanaco (lama guanicoe), llama (lama glama), alpaca (lama pacos) and vicuna (lama vicugna or vi...
The phenomenon of a remarkable conservation of the X chromosome in eutherian mammals has been first described by Susumu Ohno in 1964. A notable exception is the cetartiodactyl X chromosome, which varies widely in morphology and G-banding pattern between species. It is hypothesized that this sex chromosome has undergone multiple rearrangements that changed the centromere position and the order o...
Tumor-associated macrophages (TAM) are an important component of the tumor stroma and exert several tumor-promoting activities. Strongly pro-angiogenic TAMs that reside in hypoxic tumor areas highly express macrophage mannose receptor (MMR, CD206). In this study, we targeted MMR+ TAMs using nanobodies, which are single-domain antigen-binding fragments derived from Camelidae heavy-chain antibodi...
The currently used anti-cytokine therapeutic antibodies cannot selectively neutralize pathogenic cytokine signalling that cause collateral damage to protective cascades. single domain chain firstly discovered in Camelidae displays fully functional ability antigen-binding against variable targets, which has been seemed as attractive candidates for the next-generation biologic drug study. In this...
Elasmobranchs are crucial for comparative studies of evolution, as they belong to the most ancient vertebrate lineages that survived numerous extinction events and persist until today. The immunoglobulin new antigen receptor (IgNAR) found in sharks heavy-chain-only antibody (HCAb) camelidae products convergent evolution. Although it was previously believed IgNAR emerged 220 million years ago, b...
A data set of complete mitochondrial cytochrome b and 12S rDNA sequences is presented here for 17 representatives of Artiodactyla and Cetacea, together with potential outgroups (two Perissodactyla, two Carnivora, two Tethytheria, four Rodentia, and two Marsupialia). We include seven sequences not previously published from Hippopotamidae (Ancodonta) and Camelidae (Tylopoda), yielding a total of ...
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