What question did this study set out to answer?

To present the genome assembly of the snake-back spider, Segestria senoculata.

January 6, 2026Wellcome Open Research0 citationsOpen Access

The genome sequence of the snake-back spider, Segestria senoculata (Linnaeus, 1758) (Araneae: Segestriidae)

LCLiam M CrowleyWellcome Sanger Institute IMIrene Fabiola Roman Maldonado ULUniversity of Oxford and Wytham Woods Genome Acquisition Lab

Key Points

To present the genome assembly of the snake-back spider, Segestria senoculata.
Assembly of genome from a female Segestria senoculata.
Analysis of haplotypes and chromosomal structures.
Inclusion of mitochondrial genome in the assembly.
Genome assembly includes two haplotypes with lengths of 3,804.19 Mb and 3,893.16 Mb.
Most of haplotype 1 and 2 are scaffolded into 8 chromosomal pseudomolecules.
The assembled mitochondrial genome is 14.73 kilobases.

Abstract

We present a genome assembly from an individual female Segestria senoculata (snake-back spider; Arthropoda; Arachnida; Araneae; Segestriidae). The assembly contains two haplotypes with total lengths of 3 804.19 megabases and 3 893.16 megabases. Most of haplotype 1 (95.27%) is scaffolded into 8 chromosomal pseudomolecules. Most of haplotype 2 (93.96%) is scaffolded into 8 chromosomal pseudomolecules. The mitochondrial genome has also been assembled, with a length of 14.73 kilobases. This assembly was generated as part of the Darwin Tree of Life project, which produces reference genomes for eukaryotic species found in Britain and Ireland.

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