Issues Faced by Contemporary Commercial Singers in Sri Lanka

Nanayakkara, G.

doi:10.1007/978-981-13-6668-0_5

Cited by 1 publication

(3 citation statements)

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“…One such occasion, reported on 20th July 2020, marked the third report of dead melanistic leopards in Sri Lanka. While few citations reports black leopards in Sri Lanka, especially in humid montane forests, no formal studies have been done so far [22,56]. Our study was based on 100x coverage Illumina data generated from the heart blood of a dead melanistic leopard collected during the postmortem and morphological data collected from the same animal.…”

Section: Discussionmentioning

confidence: 99%

“…A broader assessment of its evolutionary history and adaptive significance would assist in better conservation strategies. For example, against this backdrop, the phylogeography of the Sri Lankan melanistic leopard, and how the Sri Lankan leopard, P. p. kotiya emerged are in serious discussion among environmental groups [22,56].…”

Section: Plos Onementioning

confidence: 99%

“…Recently a melanistic leopard was spotted in Yala National Park area, in the southern area of Sri Lanka and has been declared a restricted area for visitors (Fig 1) [19,20] During the last decade in 2009, 2013 and 2020, three melanistic leopards were victims of cruel deaths in poacher's traps [17,18,21]. Some environmentalists claim that the last black leopard in Sri Lanka died in 2020 due to the injuries inflicted by poachers [22].…”

Section: Introductionmentioning

confidence: 99%

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A unique single nucleotide polymorphism in Agouti Signalling Protein (ASIP) gene changes coat colour of Sri Lankan leopard (Panthera pardus kotiya) to dark black

Sooriyabandara,

Bandaranayake,

Hathurusinghe

et al. 2023

PLoS ONE

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The Sri Lankan leopard (Panthera pardus kotiya) is an endangered subspecies restricted to isolated and fragmented populations in Sri Lanka. Among them, melanistic leopards have been recorded on a few occasions. Literature suggests the evolution of melanism several times in the Felidae family, with three species having distinct mutations. Nevertheless, the mutations or other variations in the remaining species, including Sri Lankan melanistic leopard, are unknown. We used reference-based assembled nuclear genomes of Sri Lankan wild type and melanistic leopards and de novo assembled mitogenomes of the same to investigate the genetic basis, adaptive significance, and evolutionary history of the Sri Lankan melanistic leopard. Interestingly, we identified a single nucleotide polymorphism in exon-4 Sri Lankan melanistic leopard, which may completely ablate Agouti Signalling Protein (ASIP) function. The wild type leopards in Sri Lanka did not carry this mutation, suggesting the cause for the occurrence of melanistic leopords in the population. Comparative analysis of existing genomic data in the literature suggests it as a P. p. kotiya specific mutation and a novel mutation in the ASIP-gene of the Felidae family, contributing to naturally occurring colour polymorphism. Our data suggested the coalescence time of Sri Lankan leopards at ~0.5 million years, sisters to the Panthera pardus lineage. The genetic diversity was low in Sri Lankan leopards. Further, the P. p. kotiya melanistic leopard is a different morphotype of the P. p. kotiya wildtype leopard resulting from the mutation in the ASIP-gene. The ability of black leopards to camouflage, along with the likelihood of recurrence and transfer to future generations, suggests that this rare mutation could be environment-adaptable.

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Section: Discussionmentioning

confidence: 99%

Section: Plos Onementioning

confidence: 99%