3.9 Article

Phylogenetic and genetic variation analysis of lesser short-nosed fruit bat Cynopterus brachyotis (Muller 1838) on Java island, Indonesia, inferred from mitochondrial D-loop

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DOI: 10.1186/s43141-022-00460-y

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Cynopterus brachyotis; D-loop; Genetic variation; mtDNA; Phylogenetic

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This study investigated the genetic diversity of C. brachyotis on Java island and found that individuals from different habitats were genetically similar with high genetic variation. This suggests that C. brachyotis is widespread and adaptable to different habitats on Java island.
Background Cynopterus brachyotis (Muller 1838) is a generalist and widespread fruit bat species which inhabits different types of habitats in Southeast Asia. This species plays an essential role as a seed disperser and pollinator. Morphological study and phylogenetic analysis using mtDNA markers (cyt-b and D-loop) revealed that this species had two different forms in peninsular Malaysia and Borneo and six lineages in Southeast Asia that lead to new species formation. In addition, this species is also reported to have high genetic diversity in Malaysia and Thailand based on the D-loop sequence. However, a phylogenetic and genetic variation study of C. brachyotis in Indonesia has not been conducted yet. These two studies are important as additional information for taxonomic and population genetic studies of this species. Thus, we performed the phylogenetic and genetic diversity analysis of the C. brachyotis population collected from seven habitats on Java island, including open-fragmented habitats (urban, coffee and rubber plantations, pine forest, secondary forest, mangrove forest) and closed habitats (natural forest) using the mtDNA D-loop marker.Results The phylogenetic tree using the Bayesian inference (BI) and genetic distance using the Kimura-2 parameter (K-2P) demonstrated that 33 individuals of C. brachyotis from seven habitats on Java island overlapped between habitats and could not be distinguished according to their habitats and lineage. Intrapopulation and intraspecies analysis revealed high haplotype diversity of this species on Java island (Hd = 0.933-1.000). The haplotype network was split into two haplogroups, showing haplotype sharing between habitats. These phylogenetic and genetic variations analysis of C. brachyotis bats on Java island indicated that this species is widespread and adapt to different habitats.Conclusions This study of C. brachyotis on Java island collected from seven different habitats has overlapped and genetically close and has high genetic variation. Our results provide the first reported study of C. brachyotis on Java island and provide data to understand the phylogenetic and genetic diversity of this species in Indonesia.

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