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Group:
Eudicot
Estimated genome size:
1.5 m in height
Size:
1.5 m in height
Distribution:
Brunia noduliflora occurs from the Cederberg southwards to the Cape Peninsula and eastwards as far as the Cockscomb in the Groot Winterhoek Mountains of the Eastern Cape, at altitudes from near sea level to approximately 1 500 m.
PromethION Sequencing Report:
Output:
39.88 Gigabases
Approximate N50:
16.91 kilobases
Draft Genome Assembly Statistics:
Genome Length:
0.72 Gigabases
BUSCO completeness score (single and duplicated genes):
97.40% [S: 47.0%, D: 50.0%]
Importance:
Brunia noduliflora is the most widespread species in the subgenus Brunia and occurs across diverse fynbos habitats in the Cape Floristic Region. Its broad ecological range makes it valuable for studying diversification and adaptation within the Bruniaceae.
Group:
Eudicot
Estimated genome size:
Size:
10 cm
Distribution:
Portulacaria pygmaea is restricted to the arid Richtersveld region of the Northern Cape, occurring along the lower Orange River Valley.
PromethION Sequencing Report:
Output:
33.45 Gigabases
Approximate N50:
13.19 kilobases
Assembly N50:
11 377.66 kilobases
Contig number:
810
Draft Genome Assembly Statistics:
Assembler used:
Hifiasm
Genome Length:
0.84 Gigabases
BUSCO completeness score (single and duplicated genes):
99.5% [S: 7.3%, D: 92.2%]
BUSCO database:
viridiplantae
Portulacaria pygmaea
Pygmy porkbush
Importance:
This species is listed as Critically Endangered on the SANBI Red List. It is has lost most of its habitat to mining and is being poached heavily and needs critical conservation intervention. It is a relative of Portulacaria afra (spekboom) which has important ecological and economic value. P. pygmaea is a Richtersveld endemic with a complete absence of cytogenetic or genomic data, making it a highly valuable candidate for foundational genetic, ecological, and conservation research into southern-African biodiversity.
Sample Contributor contact details:
Annerie Senekal
Stellenbosch University Botanical Garden
Date Published:
2026-06-08
Photo credit:
© N. Helme
Flora
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