Genome-wide data help identify an avian species-level lineage that is morphologically and vocally cryptic

Garg, Kritika M.; Tizard, Robert; Ng, Nathaniel S. R.; Cros, Emilie; Dejtaradol, Ariya; Chattopadhyay, Balaji; Pwint, Nila; Päckert, Martin

doi:10.1016/j.ympev.2016.05.028

Cited by 36 publications

(19 citation statements)

References 30 publications

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“…Although vocalisations are certainly important, eye colour might be the main trait for species recognition among brown bulbuls. This has been observed in Streak-eared Bulbul P. blanfordi of Indochina and the Thai-Malay Peninsula (Garg et al 2016). A large mitochondrial distance occurs between two vocally and visually similar subspecies, P. b. blanfordi and P. b. conradi, which are also most easily distinguished by iris colour: P. b. blanfordi has dark red irides, whereas P. b. conradi usually has dark grey irides (Garg et al 2016).…”

Section: Measurements Of Type-seementioning

confidence: 77%

“…This has been observed in Streak-eared Bulbul P. blanfordi of Indochina and the Thai-Malay Peninsula (Garg et al 2016). A large mitochondrial distance occurs between two vocally and visually similar subspecies, P. b. blanfordi and P. b. conradi, which are also most easily distinguished by iris colour: P. b. blanfordi has dark red irides, whereas P. b. conradi usually has dark grey irides (Garg et al 2016). On Borneo, field comparisons of P. pseudosimplex with other brown bulbuls-especially how the species use their markedly distinct eye colours-are likely to yield rich information on the behavioural ecology of an otherwise generally under-appreciated group of birds.…”

Section: Measurements Of Type-seementioning

confidence: 77%

“…Recent work has shown that iris colour actually can be an important trait for differentiating bulbul taxa that previously were considered conspecific based on similarities in plumage and vocalisations (Garg et al 2016). On Borneo, two common bulbul species that are similar in plumage and voice to each other and to P. simplex are readily distinguished by their eye coloration.…”

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confidence: 99%

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A cryptic new species of bulbul from Borneo

Shakya

Lim

Moyle

et al. 2019

Bulletin of the British Ornithologists’ Club

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Section: Measurements Of Type-seementioning

confidence: 77%

Section: Measurements Of Type-seementioning

confidence: 77%

mentioning

confidence: 99%

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A cryptic new species of bulbul from Borneo

Shakya

Lim

Moyle

et al. 2019

Bulletin of the British Ornithologists’ Club

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“…Several studies have assimilated this kind of above-population level clusters inferred from genome-wide diversity to species level (Brunet et al, 2017;Pinto et al, 2019). This has been done even in the absence of morphological evidence (Warner et al, 2015;Garg et al, 2016;Dincă et al, 2019), but has also been confirmed by geometric morphometrics and other cryptic characters (Alter et al, 2017). One criterium proposed for robust species delimitation in cryptic taxa is genetic distinctiveness in sympatry (Mallet, 1995).…”

Section: Integrative Taxonomy Identified Three Putative Cryptic Specimentioning

confidence: 98%

Local adaptation fuels cryptic speciation in terrestrial annelids

Marchán

Novo

Sánchez

et al. 2019

Preprint

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Uncovering the genetic and evolutionary basis of cryptic speciation is a major focus of evolutionary biology. Next Generation Sequencing (NGS) allows the identification of genome-wide local adaptation signatures, but has rarely been applied to cryptic complexes -particularly in the soil milieu -as is the case with integrative taxonomy. The earthworm genus Carpetania, comprising six previously suggested putative cryptic lineages, is a promising model to study the evolutionary phenomena shaping cryptic speciation in soil-dwelling lineages. Genotyping-By-Sequencing (GBS) was used to provide genome-wide information about genetic variability between seventeen populations, and geometric morphometrics analyses of genital chaetae were performed to investigate unexplored cryptic morphological evolution. Genomic analyses revealed the existence of three cryptic species, with half of the previously-identified potential cryptic lineages clustering within them. Local adaptation was detected in more than 800 genes putatively involved in a plethora of biological functions (most notably reproduction, metabolism, immunological response and morphogenesis).Several genes with selection signatures showed shared mutations for each of the cryptic species, and genes under selection were enriched in functions related to regulation of transcription, including SNPs located in UTR regions. Finally, geometric morphometrics approaches partially confirmed the phylogenetic signal of relevant morphological characters such as genital chaetae. Our study therefore unveils that local adaptation and regulatory divergence are key evolutionary forces orchestrating genome evolution in soil fauna.

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“…In our classification of call types, we interpreted an unbroken vocal segment as an "element", whereas a "motif" was taken to be a collection of one to multiple elements that are repeated in an almost identical fashion (Rheindt et al 2011, Harris et al 2014 Vocal parameters were also analysed using Isler et al's (1998) criterion for bioacoustic species delimitation (henceforth referred to as the Isler criterion). The Isler criterion has previously been applied successfully to distinguish among vocally divergent lineages of Asian and AustraloPacific doves, nightjars, bulbuls, owls, and babblers (Sangster & Rozendaal 2004, Rheindt et al 2011, Garg et al 2016, Gwee et al 2017, Cros & Rheindt 2017 (Fig. 3), a bioacoustic comparison using the Isler criterion was not performed based on low sample size across these call types.…”

Section: Bioacoustic Analysismentioning

confidence: 99%

A Colourful New Species of Myzomela Honeyeater From Rote Island in Eastern Indonesia

Prawiradilaga

Baveja²,

Suparno

et al. 2018

TREUBIA

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The avifauna of Rote Island in the Lesser Sundas is not well studied and generally considered to be similar to that of adjacent Timor Island. However, some cases of bird endemism have recently been documented on this island. A population of Myzomela honeyeater is one such example. First observed in October 1990, it has been subsumed with Myzomela dammermani from Sumba Island given its superficially similar appearance. Based on extensive morphological inspection and bioacoustic analysis, we here describe this population as a new taxon to science. Apart from previously overlooked plumage distinctions, the new taxon bioacoustically differs from M. dammermani in the presence or absence of several unique call types and considerable differences across two parameters in shared call types. Considering the importance of bioacoustics in avian species delimitation, we propose that the new Rote Myzomela be considered a distinct species. Given continued habitat conversion across its small range, we propose the International Union for Conservation of Nature and Natural Resources (IUCN) threat status Vulnerable for the species.

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Genome-wide data help identify an avian species-level lineage that is morphologically and vocally cryptic

Cited by 36 publications

References 30 publications

A cryptic new species of bulbul from Borneo

A cryptic new species of bulbul from Borneo

Local adaptation fuels cryptic speciation in terrestrial annelids

A Colourful New Species of Myzomela Honeyeater From Rote Island in Eastern Indonesia

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