Publications by authors named "Alexander Ben Hamadou"

Genomic resources are important for evaluating genetic diversity and supporting conservation efforts. The garden dormouse () is a small rodent that has experienced one of the most severe modern population declines in Europe. We present a high-quality haplotype-resolved reference genome for the garden dormouse, and combine comprehensive short and long-read transcriptomics data sets with homology-based methods to generate a highly complete gene annotation.

View Article and Find Full Text PDF

Spiders are a hyperdiverse taxon and among the most abundant predators in nearly all terrestrial habitats. Their success is often attributed to key developments in their evolution such as silk and venom production and major apomorphies such as a whole-genome duplication. Resolving deep relationships within the spider tree of life has been historically challenging, making it difficult to measure the relative importance of these novelties for spider evolution.

View Article and Find Full Text PDF
Article Synopsis
  • The study focuses on sequencing and annotating the genome of the sacoglossan sea slug Elysia timida, a species that can store chloroplasts from its food algae, in order to improve understanding of genome architecture and evolution in molluscs.
  • The researchers achieved a high-quality chromosome-level genome assembly using advanced techniques, resulting in higher scaffold and contig N50s than previous sacoglossan genomes, alongside the identification of nearly 20,000 protein-coding genes.
  • Findings also indicated that while no horizontal gene transfer was detected, the presence of polyketide synthase genes suggests the production of polypropionates, highlighting the unique biochemical capabilities of this sea slug.
View Article and Find Full Text PDF

The time required for genome sequencing and assembly depends on the interaction between laboratory work, sequencing capacity, and the bioinformatics workflow, often constrained by external sequencing services. Bringing together academic biodiversity institutes and a medical diagnostics company with extensive sequencing capabilities, we aimed at generating a high-quality mammalian genome in minimal time. We present the first chromosome-level genome assembly of the Whippet, using PacBio long-read high-fidelity sequencing and reference-guided scaffolding.

View Article and Find Full Text PDF

Background: Venoms, which have evolved numerous times in animals, are ideal models of convergent trait evolution. However, detailed genomic studies of toxin-encoding genes exist for only a few animal groups. The hyper-diverse hymenopteran insects are the most speciose venomous clade, but investigation of the origin of their venom genes has been largely neglected.

View Article and Find Full Text PDF

The cheetah (Acinonyx jubatus, SCHREBER 1775) is a large felid and is considered the fastest land animal. Historically, it inhabited open grassland across Africa, the Arabian Peninsula, and southwestern Asia; however, only small and fragmented populations remain today. Here, we present a de novo genome assembly of the cheetah based on PacBio continuous long reads and Hi-C proximity ligation data.

View Article and Find Full Text PDF

is a native European crayfish species found in both freshwater and brackish environments. It has commercial importance for fisheries and aquaculture industries. Up till now, most studies concerning have focused onto gaining knowledge about its phylogeny and population genetics.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionichaeomhio5hjhin2rp65kdcb8nr6i5d): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once