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Group:

Reptile

Estimated genome size:

10 - 20 cm (total body length)

Size:

10 - 20 cm (total body length)

Distribution:

Endemic to the Republic of South Africa, occurring in Little Namaqualand from Port Nolloth to Clanwilliam.

PromethION Sequencing Report:

Output:

48.66 Gigabases

Approximate N50:

5.93 kilobases

Draft Genome Assembly Statistics:

Genome Length:

1.56 Gigabases

BUSCO completeness score (single and duplicated genes):

98.8% [S: 96.9%, D: 2.0%]

Importance:

It serves as an important model species for studying specific stages of limb development within the genus Scelotes, representing an intermediate limb development stage (forelimb digits = 0; hindlimb digits = 2), and for investigating the genomic evolution of vertebrates. It has a restricted distribution and occurs in distinct habitats and regions, making it an excellent model species for biogeographic and molecular ecology studies.

Sample Contributor contact details:

Dr. Zhongning Zhao
University of Free State

Group:

Insect

Estimated genome size:

Size:

12 mm

Distribution:

The distribution of Microhodotermes viator is largely restricted to southern Africa, with its range concentrated in the arid and semi-arid regions of South Africa, especially in the Western Cape, Northern Cape, and parts of the Eastern Cape.

PromethION Sequencing Report:

Output:

66.5 Gigabases

Approximate N50:

3.16 kilobases

Assembly N50:

6 407.31 kilobases

Contig number:

2 668

Draft Genome Assembly Statistics:

Assembler used:

Hifiasm

Genome Length:

0.95 Gigabases

BUSCO completeness score (single and duplicated genes):

98.7% [S: 98.7%, D: 1.0%]

BUSCO database:

insecta

Microhodotermes viator

Southern harvester termite

Species Card Details

Importance:

The Southern harvester termite is ecologically important in South African arid and semiarid ecosystems, particularly the Succulent Karoo and Nama Karoo biomes. It is a dominant decomposer and primary soil engineer, breaking down dry plant material and contributing to nutrient cycling, soil structure, and water infiltration. This termite’s genome sequence is important because it can: ① Reveal genetic adaptations to arid environments and extreme temperature fluctuations; ②. Shed light on the early evolution of termites; ③ Fill a major gap in termite phylogenomics, improving our understanding of termite diversification; ④ Inform conservation and land management in fragile dryland ecosystems facing climate change.

Sample Contributor contact details:

Dr Barbara van Asch
Stellenbosch University, Genetics Department

Date Published:

2025-10-24

Photo credit:

© D. Gergonne

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