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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:

Eudicot

Estimated genome size:

Size:

1 m

Distribution:

This species is widely distributed across southern Africa, occurring in the Northern, Western, and Eastern Cape, Free State, KwaZulu-Natal, and Namibia. It is the most widely distributed South African shrubby euphorbia and is especially dominant in the Succulent Karoo, where it commonly occurs on valleys and hillsides.

PromethION Sequencing Report:

Output:

199.73 Gigabases

Approximate N50:

24.18 kilobases

Assembly N50:

46 174.4 kilobases

Contig number:

1 074

Draft Genome Assembly Statistics:

Assembler used:

Hifiasm

Genome Length:

6.08 Gigabases

BUSCO completeness score (single and duplicated genes):

99.8% [S: 32.0%, D: 67.8%]

BUSCO database:

viridiplantae

Euphorbia mauritanica

Yellow milk bush

Species Card Details

Importance:

The yellow milk bush a is toxic to livestock and sometimes confused with another succulent shrub used as forage, but it is valued as a drought tolerant ornamental. In southern Africa, members of the Euphorbiaceae face increasing threats from illegal trade, highlighting the need for urgent conservation.

Sample Contributor contact details:

Mr Thabang Makola
South African National Biodiversity Institute

Date Published:

2026-02-09

Photo credit:

© T. Makola

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