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Golla, T. R., Tensen, L., Vipin, Kumar, K., Kumar, S., Gaur, A. |
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Neutral and adaptive genetic variation in Indian snow leopards, Panthera uncia |
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2023 |
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Current Science |
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125 |
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2 |
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204-209 |
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Adaptive evolution, balancing selection, cap- tive breeding, genetic diversity, major histocompatibility complex. |
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In this study, we reveal patterns of genetic variation in snow leopards (Panthera uncia) by combining neutral (mtDNA, microsatellites) and adaptive (MHC II-DRB) genes. We collected 56 faecal samples from three locations in India. We observed moderate levels of microsatellite diversity (N = 30; A = 5.6; HO = 0.559). Nine unique MHC II-DRB sequences were identified in four snow leopard samples, of which 8 were novel. We found low levels of polymorphism in MHC class II-DRB exon, which was higher in captive (VA = 9.4%) compared to wild individuals (VA = 7.8%), likely as a result of a population bottleneck. |
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SLN @ rakhee @ |
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1722 |
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Johnson, W.E.; Dratch, P.A.; Martenson, J.S.; O'Brien, S.J. |
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Resolution of recent radiations within three evolutionary lineages of Felidae using mitochondrial restriction fragment length polymorphism variation |
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Journal Article |
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1996 |
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Journal of Mammalian Evolution |
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3 |
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2 |
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97-120 |
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Evolution; Evolutionary-Lineages; Mitochondrial-Dna; Mitochondrial-Restriction-Fragment-Length-Polymorphism-Variation; phylogeny; Recent-Radiations; Restriction-Enzymes; Tigrina; snow-leopard; browse; evolutionary; lineages; mitochondrial; Dna; restriction; fragment; length; polymorphism; variation; radiation; enzymes; recent; recent radiation; 1340 |
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Patterns of mitochondrial restriction fragment length polymorphism (RFLP) variation were used to resolve more recent relationships among the species of the Felidae ocelot lineage, domestic cat lineage, and pantherine lineage. Twenty-five of 28 restriction enzymes revealed site variation in at least 1 of 21 cat species. The ocelot lineage was resolved into three separate sister taxa groups: Geoffroy's cat (Oncifelis geoffroyi) and kodkod (O. guigna), ocelot (Leopardus pardalis) and margay (L. wiedii), and pampas cat (Lynchailurus colocolo) and most of the tigrina samples (Leopardus tigrina). Within the domestic cat lineage, domestic cat (Felis catus), European wild cat (F. silvestris), and African wild cat (F. libyca) formed a monophyletic trichotomy, which was joined with sand cat (F. margarita) to a common ancestor. Jungle cat (F. chaus) and black-footed cat (F. nigripes) mtDNAs diverged earlier than those of the other domestic cat lineage species and are less closely related. Within the pantherine lineage, phylogenetic analysis identified two distinct groups, uniting lion (P. leo) with leopard (P. pardus) and tiger (P. tigris) with snow leopard (P. uncia). |
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Document Type: English
Call Number: QL708.5 J68 |
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SLN @ rana @ 276 |
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501 |
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Lovari, S., Ventimiglia, M., Minder, I. |
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Food habits of two leopard species, competition, climate change and upper treeline: a way to the decrease of an endangered species? |
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2013 |
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Ethology Ecology & Evolution |
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25 |
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4 |
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305-318 |
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carnivore evolution, coexistence, sympatric species, diet, Panthera uncia, Panthera pardus. |
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For carnivore species, spatial avoidance is one of the evolutionary solutions to
coexist in an area, especially if food habits overlap and body sizes tend to coincide.
We reviewed the diets of two large cats of similar sizes, the endangered snow leopard
(Panthera uncia, 16 studies) and the near-threatened common leopard (Panthera par-
dus, 11 studies), in Asia. These cats share ca 10,000 km2 of their mountainous range,
although snow leopards tend to occur at a significantly higher altitude than common
leopards, the former being a cold-adapted species of open habitats, whereas the latter
is an ecologically flexible one, with a preference for woodland. The spectrum of prey
of common leopards was 2.5 times greater than that of snow leopards, with wild prey
being the staple for both species. Livestock rarely contributed much to the diet. When
the breadth of trophic niches was compared, overlap ranged from 0.83 (weight categories)
to one (main food categories). As these leopard species have approximately
the same size and comparable food habits, one can predict that competition will arise
when they live in sympatry. On mountains, climate change has been elevating the
upper forest limit, where both leopard species occur. This means a habitat increase
for common leopards and a substantial habitat reduction for snow leopards, whose
range is going to be squeezed between the forest and the barren rocky altitudes, with
medium- to long-term undesirable effects on the conservation of this endangered cat |
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SLN @ rakhee @ |
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1403 |
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Olaf, R.P.; Edmonds, B.; Gittleman, J.; Purvis, A. |
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Building large trees by combining phylogenetic information: a complete phylogeny of the extant Carnivora (Mammalia) |
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1999 |
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Biological Reviews of the Cambridge Philosophical Society |
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74 |
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143-175 |
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Carnivora; character-congruence; taxonomic-congruence; supertree; matrix-representation; parsimony; divergence-times; fossil-dates; molecular-clock; macroevolution; taxonomy; Evolution; browse; character; congruence; taxonomic; matrix; representation; divergence; times; fossil; dates; Molecular; clock; 1220 |
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One way to build larger, more comprehensive phylogenies is to combine the vast amount of phylogenetic information already available. We review the two main strategies for accomplishing this (combining raw data versus combining trees), but employ a relatively new variant of the latter: supertree construction. The utility of one supertree technique, matrix representation using parsimony analysis (MRP), is demonstrated by deriving a complete phylogeny for all 271 extant species of the Carnivora from 177 literature sources. Beyond providing a `consensus' estimate of carnivore phylogeny, the tree also indicates taxa for which the relationships remain controversial (e.g. the red panda; within canids, felids, and hyaenids) or have not been studied in any great detail (e.g. herpestids, viverrids, and intrageneric relationships in the procyonids). Times of divergence throughout the tree were also estimated from 74 literature sources based on both fossil and molecular data. We use the phylogeny to show that some lineages within the Mustelinae and Canidae contain significantly more species than expected for their age, illustrating the tree's utility for studies of macroevolution. It will also provide a useful foundation for comparative and conservational studies involving the carnivores.
(Received June 2 1998)(Revised November 27 1998)(Accepted December 16 1998) |
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Copyright c Cambridge Philosophical Society 1999 Document Type: English |
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SLN @ rana @ 371 |
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739 |
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