top of page

Group:

Reptile

Estimated genome size:

17 cm maximum (total body length).

Size:

17 cm maximum (total body length).

Distribution:

It is found in the Eastern Cape, Free State, Western Cape and Northern Cape
provinces of South Africa.

PromethION Sequencing Report:

Output:

89.36 Gigabases

Approximate N50:

6.51 kilobases

Draft Genome Assembly Statistics:

Genome Length:

4.53 Gigabases

BUSCO completeness score (single and duplicated genes):

99.6% [Single: 50.6%, Duplicated: 49%]

Importance:

The greater padloper tortoise is endemic to South Africa and contributes to ecosystem stability in the Karoo. As the largest species in the genus Homopus, it is of scientific interest for studies of limb development, as it is one of only two Homopus species with four digits on each foot.

Sample Contributor contact details:

Zhongning Zhao
University of the Free State

Group:

Echinoderm

Estimated genome size:

Size:

20 mm

Distribution:

This species is distributed along the South African coast from the west coast to KwaZulu-Natal.

PromethION Sequencing Report:

Output:

61.29 Gigabases

Approximate N50:

2.34 kilobases

Assembly N50:

110 kilobases

Contig number:

17 444

Draft Genome Assembly Statistics:

Assembler used:

Flye

Genome Length:

0.33 Gigabases

BUSCO completeness score (single and duplicated genes):

98.0% [S: 94.1%, D: 3.9%]

BUSCO database:

eukaryota

Parvulastra exigua

Dwarf cushion star

Species Card Details

Importance:

The dwarf cushion star is a widespread and ecologically significant intertidal species in South Africa. It contributes to biodiversity by maintaining balance in rocky shore ecosystems and serving as prey and grazer. Sequencing its genome will provide insights into adaptation to harsh intertidal conditions, population connectivity, and resilience to environmental change, supporting conservation and enhancing understanding of echinoderm evolution within South Africa's unique marine biodiversity.

Sample Contributor contact details:

Dr Suzanne Redelinghuys
Rhodes University &
South African Institute for Aquatic Biodiversity

Date Published:

2025-12-01

Photo credit:

© S. Redelinghuys

Fauna

bottom of page