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Group:

Eudicot

Estimated genome size:

0.3 meters in height.

Size:

0.3 meters in height.

Distribution:

Found in grassland habitats across Southern Africa.

PromethION Sequencing Report:

Output:

122.04 Gigabases

Approximate N50:

9.24 kilobases

Draft Genome Assembly Statistics:

Genome Length:

2.75 Gigabases

BUSCO completeness score (single and duplicated genes):

99.6% [S: 60.8%, D: 38.8%]

Importance:

Some populations of this species in the Barberton region of South Africa have evolved the ability to hyperaccumulate nickel, making this species ideal for a comparative genomics approach to understand the evolution of this extreme phenotype.

Sample Contributor contact details:

Prof. Robert Ingle
University of Cape Town

Group:

Reptile

Estimated genome size:

Size:

Maximum 15 cm for female, 10.5 cm for male

Distribution:

The Karoo tent tortoise occurs only in the lower and central Karoo region, between Touws River and Makhanda.

PromethION Sequencing Report:

Output:

107.98 Gigabases

Approximate N50:

10.35 kilobases

Assembly N50:

3 436.17 kilobases

Contig number:

7201

Draft Genome Assembly Statistics:

Assembler used:

TBA

Genome Length:

2.24 Gigabases

BUSCO completeness score (single and duplicated genes):

99.6% [S: 97.3%, D: 2.4%]

BUSCO database:

TBA

Psammobates tentorius tentorius

Karoo tent tortoise

Species Card Details

Importance:

The Karoo tent tortoise is an important seed disperser for various plant species and endemic to South Africa. It is arguably one of the most taxonomically confusing and morphologically polymorphic species of Testudines. It is listed as "Near Threatened" by the IUCN and is confined to the central and lower Karoo regions. Remarkably, no genomic studies have been conducted on any tortoise species in Africa or across the entire Southern Hemisphere.

Sample Contributor contact details:

Dr Zhongning Zhao
University of the Free State

Date Published:

2025-07-17

Photo credit:

© Zhongning Zhao

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