top of page
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:
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
.png)
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
bottom of page