The complete mitochondrial genome of the Band-rumped Storm Petrel (<i>Oceanodroma castro</i>)

Antaky, Carmen; Kitamura, Philip K.; Knapp, Ingrid S.; Toonen, Robert J.; Price, Melissa R.

doi:10.1080/23802359.2019.1591199

Cited by 3 publications

(2 citation statements)

References 20 publications

(18 reference statements)

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“…Due to the high prevalence of the GATC cut site in mitochondrial genomes combined with stochastic fragmentation, whole mitogenomes can be assembled from ezRAD libraries [ 40 , 121 , 124 , 125 ]. We assembled the complete M. alfredi mitogenome (including the control region) from individual M03 from Maui (OP562409.1, described in [ 40 ]), which we used as the reference for aligning and haplotyping.…”

Section: Methodsmentioning

confidence: 99%

Genomic evidence indicates small island-resident populations and sex-biased behaviors of Hawaiian reef Manta Rays

Whitney

Coleman

Deakos³

2023

BMC Ecol Evo

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Background Reef manta rays (Mobula alfredi) are globally distributed in tropical and subtropical seas. Their life history traits (slow growth, late maturity, low reproductive output) make them vulnerable to perturbations and therefore require informed management strategies. Previous studies have reported wide-spread genetic connectivity along continental shelves suggesting high gene flow along continuous habitats spanning hundreds of kilometers. However, in the Hawaiian Islands, tagging and photo-identification evidence suggest island populations are isolated despite proximity, a hypothesis that has not yet been evaluated with genetic data. Results This island-resident hypothesis was tested by analyzing whole mitogenome haplotypes and 2048 nuclear single nucleotide polymorphisms (SNPs) between M. alfredi (n = 38) on Hawaiʻi Island and Maui Nui (the 4-island complex of Maui, Molokaʻi, Lānaʻi and Kahoʻolawe). Strong divergence in the mitogenome (ΦST = 0.488) relative to nuclear genome-wide SNPs (neutral FST = 0.003; outlier FST = 0.186), and clustering of mitochondrial haplotypes among islands provides robust evidence that female reef manta rays are strongly philopatric and do not migrate between these two island groups. Combined with restricted male-mediated migration, equivalent to a single male moving between islands every 2.2 generations (~ 64 years), we provide evidence these populations are significantly demographically isolated. Estimates of contemporary effective population size (Ne) are 104 (95% CI: 99–110) in Hawaiʻi Island and 129 (95% CI: 122–136) in Maui Nui. Conclusions Concordant with evidence from photo identification and tagging studies, these genetic results indicate reef manta rays in Hawaiʻi have small, genetically-isolated resident island populations. We hypothesize that due to the Island Mass Effect, large islands provide sufficient resources to support resident populations, thereby making crossing deep channels separating island groups unnecessary. Small effective population size, low genetic diversity, and k-selected life history traits make these isolated populations vulnerable to region-specific anthropogenic threats, which include entanglement, boat strikes, and habitat degradation. The long-term persistence of reef manta rays in the Hawaiian Islands will require island-specific management strategies.

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Section: Methodsmentioning

confidence: 99%

Genomic evidence indicates small island-resident populations and sex-biased behaviors of Hawaiian reef Manta Rays

Whitney

Coleman

Deakos³

2023

BMC Ecol Evo

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“… 2018 ; Antaky et al. 2019 ), which simultaneously provide nuclear RAD loci for population genomics. We used the ezRAD approach (Toonen et al.…”

Section: Methodsmentioning

confidence: 99%

The complete mitochondrial genome of the Reef Manta Ray, Mobula alfredi, from Hawaii

Whitney

Coleman

Deakos³

2023

Mitochondrial DNA Part B

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We provide the complete mitochondrial genome of the reef manta ray, Mobula alfredi , using an ezRAD approach. The total length of the mitogenome was 18,166 bp and contained 13 protein-coding genes, 22 transfer RNAs genes, two ribosomal RNA genes, and one non-coding control region. The gene organization and length are similar to other Mobula species. This reference mitogenome that includes the control region is expected to be a valuable resource for molecular-based species identification, population genomics, and phylogeography.

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Unexpectedly high genetic diversity in a rare and endangered seabird in the Hawaiian Archipelago

Antaky

Conklin

Toonen

et al. 2020

PeerJ

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Seabirds in the order of Procellariiformes have one of the highest proportions of threatened species of any avian order. Species undergoing recovery may be predicted to have a genetic signature of a bottleneck, low genetic diversity, or higher rates of inbreeding. The Hawaiian Band-rumped Storm Petrel (‘Akē‘akē; Hydrobates castro), a long-lived philopatric seabird, suffered massive population declines resulting in its listing under the Endangered Species Act in 2016 as federally Endangered. We used high-throughput sequencing to assess patterns of genetic diversity and potential for inbreeding in remaining populations in the Hawaiian Islands. We compared a total of 24 individuals, including both historical and modern samples, collected from breeding colonies or downed individuals found on the islands of Kaua‘i, O‘ahu, Maui, and the Big Island of Hawai‘i. Genetic analyses revealed little differentiation between breeding colonies on Kaua‘i and the Big Island colonies. Although small sample sizes limit inferences regarding other island colonies, downed individuals from O‘ahu and Maui did not assign to known breeding colonies, suggesting the existence of an additional distinct breeding population. The maintenance of genetic diversity in future generations is an important consideration for conservation management. This study provides a baseline of population structure for the remaining nesting colonies that could inform potential translocations of the Endangered H. castro.

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The complete mitochondrial genome of the Band-rumped Storm Petrel (Oceanodroma castro)

Cited by 3 publications

References 20 publications

Genomic evidence indicates small island-resident populations and sex-biased behaviors of Hawaiian reef Manta Rays

Genomic evidence indicates small island-resident populations and sex-biased behaviors of Hawaiian reef Manta Rays

The complete mitochondrial genome of the Reef Manta Ray, Mobula alfredi, from Hawaii

Unexpectedly high genetic diversity in a rare and endangered seabird in the Hawaiian Archipelago

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