Roan antelope (Hippotragus equinus)

The roan antelope is one of the largest species of antelope. They are named for their roan (reddish brown) color! Read more about roan antelopes on African Wildlife Foundation website.

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Roan Antelope (Hippotragus equinus) by Nik Barrow, [CC BY-NC 2.0], via flickr.com

Chromosome-length genome assembly

Download the ASM1643309v1_HiC.fasta.gz file containing the chromosome-length (2n=60) assembly of the roan antelope genome. All modifications with respect to the draft (see below) are annotated in the ASM1643309v1_HiC.assembly file. Some basic stats associated with the new reference, ASM1643309v1_HiC, are listed below. The full data release can be explored here.

Contig length (bp)
Number of contigs
Contig N50 (bp)
Longest contig (bp)
2,602,142,626
42,020
236,858
2,025,638
Scaffold length (bp)
Number of scaffolds
Scaffold N50 (bp)
Longest scaffold (bp)
2,604,114,226
15,646
99,087,534
154,426,005
Draft

The chromosome-length genome assembly is based on the draft assembly ASM1643309v1 (GCA_016433095.1), credited below.

Gonçalves, M., Siegismund, H.R., Jansen van Vuuren, B., Koepfli, K.-P., Ferrand, N., Godinho, R., 2021. De novo whole-genome assembly and resequencing resources for the roan (Hippotragus equinus), an iconic African antelope. G3 GenesGenomesGenetics 11, jkab002. https://doi.org/10.1093/g3journal/jkab002.

Method

3D Assembly was performed using 3D-DNA pipeline (Dudchenko et al., Science, 2017). The genome was reviewed using Juicebox Assembly Tools  (Dudchenko et al., bioRxiv, 2018). See Methods for more information.

Hi-C sample

The muscle sample for in situ Hi-C preparation was obtained from Association of Zoos and Aquariums (AZA)-accredited zoological facility.

Hi-C Contact maps

Hi-C data was aligned to the draft reference using Juicer (Durand, Shamim et al., Cell Systems, 2016), and contact maps visualizing the alignments with respect to the draft and the new reference were built using 3D-DNA (Dudchenko et al., Science, 2017). The contact maps can be explored below via Juicebox.js interactive tool (Robinson et al., Cell Systems, 2018). (Please note that the interactive figures are scaled 1:2.) To explore the assembly in greater detail, please download the .hic and .assembly files from the data release folder and use Juicebox Assembly Tools  (Dudchenko et al., bioRxiv, 2018).

References

If you use this genome assembly in your research, please check that the conditions of use associated with the draft permit it, and acknowledge the following work.

Gonçalves, M., Siegismund, H.R., Jansen van Vuuren, B., Koepfli, K.-P., Ferrand, N., Godinho, R., 2021. De novo whole-genome assembly and resequencing resources for the roan (Hippotragus equinus), an iconic African antelope. G3 GenesGenomesGenetics 11, jkab002. https://doi.org/10.1093/g3journal/jkab002.

Dudchenko, O., Batra, S.S., Omer, A.D., Nyquist, S.K., Hoeger, M., Durand, N.C., Shamim, M.S., Machol, I., Lander, E.S., Aiden, A.P., Aiden, E.L., 2017. De novo assembly of the Aedes aegypti genome using Hi-C yields chromosome-length scaffolds. Science 356, 92–95. https://doi.org/10.1126/science.aal3327.

Dudchenko, O., Shamim, M.S., Batra, S., Durand, N.C., Musial, N.T., Mostofa, R., Pham, M., Hilaire, B.G.S., Yao, W., Stamenova, E., Hoeger, M., Nyquist, S.K., Korchina, V., Pletch, K., Flanagan, J.P., Tomaszewicz, A., McAloose, D., Estrada, C.P., Novak, B.J., Omer, A.D., Aiden, E.L., 2018. The Juicebox Assembly Tools module facilitates de novo assembly of mammalian genomes with chromosome-length scaffolds for under $1000. bioRxiv 254797. https://doi.org/10.1101/254797.

Disclaimer

This is a work in progress. If you notice any discrepancies in the map or have data that confirms or contradicts the suggested reference, please email us at thednazoo@gmail.com or leave a comment on the Forum.