Dataset Information

The complete mitochondrial genome of North Island brown kiwi (Apteryx mantelli).

ABSTRACT: Here, we report the complete mitochondrial genome sequence of North Island brown kiwi(Apteryx mantelli). The genome is found to be 16,694?bp in length and has a base composition of A (30.74%), G (13.46%), C (26.50%), and T (29.30%). Similar to other Apteryx species, it contains a typically conserved structure including 13 protein-coding genes, 2 rRNA genes, 1 control region (D-loop), and 22tRNA genes. The proportion of coding sequences with a total length of 11,431?bp is 68.47%, which encodes 3776 amino acids. All protein-coding genes started with Met, and ND2, COX2, and COX3 ended by TAA as a stop codon. The lengths of 12S ribosomal RNA and 16S ribosomal RNA are 973?bp and 1596?bp, respectively. The length of control region is 1112?bp, ranging from 15,583?bp to 16,694?bp. The complete mitochondrial genome sequence provided here would be useful for further understanding the evolution of ratite and conservation genetics of A. mantelli.

SUBMITTER: Liu J

PROVIDER: S-EPMC7800362 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature

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The complete mitochondrial genome of North Island brown kiwi (Apteryx mantelli).

Liu Jia J Ding Qing-Xia QX Gao Li-Zhi LZ

Mitochondrial DNA. Part B, Resources 20161226 1

Here, we report the complete mitochondrial genome sequence of North Island brown kiwi(Apteryx mantelli). The genome is found to be 16,694 bp in length and has a base composition of A (30.74%), G (13.46%), C (26.50%), and T (29.30%). Similar to other Apteryx species, it contains a typically conserved structure including 13 protein-coding genes, 2 rRNA genes, 1 control region (D-loop), and 22tRNA genes. The proportion of coding sequences with a total length of 11,431 bp is 68.47%, wh ...[more]

PMID: 33490432

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Project description:BACKGROUND:Kiwi represent the most basal extant avian lineage (paleognaths) and exhibit biological attributes that are unusual or extreme among living birds, such as large egg size, strong olfaction, nocturnality, flightlessness and long lifespan. Despite intense interest in their evolution and their threatened status, genomic resources for kiwi were virtually non-existent until the recent publication of a single genome. Here we present the most comprehensive kiwi transcriptomes to date, obtained via Illumina sequencing of whole blood and de novo assembly of mRNA sequences of eight individuals from each of the two rarest kiwi species, little spotted kiwi (LSK; Apteryx owenii) and rowi (A. rowi). RESULTS:Sequences obtained were orthologous with a wide diversity of functional genes despite the sequencing of a single tissue type. Individual and composite assemblies contain more than 7900 unique protein coding transcripts in each of LSK and rowi that show strong homology with chicken (Gallus gallus), including those associated with growth, development, disease resistance, reproduction and behavior. The assemblies also contain 66,909 SNPs that distinguish between LSK and rowi, 12,384 SNPs among LSK (associated with 3088 genes), and 29,313 SNPs among rowi (associated with 4953 genes). We found 3084 transcripts differentially expressed between LSK and rowi and 150 transcripts differentially expressed between the sexes. Of the latter, 83 could be mapped to chicken chromosomes with 95% syntenic with chromosome Z. CONCLUSIONS:Our study has simultaneously sequenced multiple species, sexes, and individual kiwi at thousands of genes, and thus represents a significant leap forward in genomic resources available for kiwi. The expression pattern we observed among chromosome Z related genes in kiwi is similar to that observed in ostriches and emu, suggesting a common and ancestral pattern of sex chromosome homomorphy, recombination, and gene dosage among living paleognaths. The transcriptome assemblies described here will provide a rich resource for polymorphic marker development and studies of adaptation of these highly unusual and endangered birds.

Dataset Information

The complete mitochondrial genome of North Island brown kiwi (Apteryx mantelli).

Publications

The complete mitochondrial genome of North Island brown kiwi (<i>Apteryx mantelli</i>).

Similar Datasets

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