Biology subjects

Chida, A. R.

Publications and source records attributed to Chida, A. R..

2 recordsLinked to original sources

bioRxiv2025

The genome sequence of the hemlock woolly adelgid, Adelges tsugae Annand 1924

The genome of the hemlock woolly adelgid (Adelges tsugae) is presented in 10 chromosomal pseudomolecules along with 132 unplaced scaffolds for a combined length of 216.56 Mb. The genome is highly contiguous, with a benchmarking universal single-copy orthologs (BUSCO) completion score of 98.25%, an N50 of 20.54 Mb, and the longest scaffold 37.41 Mb in length. On the basis of chromosomal synteny with other aphid genomes, the hemlock woolly adelgids genome is composed of 8 autosomes and two sex (X) chromosomes. Annotation of the assembly identified 11,800 coding genes, 1,930 non-coding genes, and 20,403 mRNA transcripts. The mitogenome is also presented in a single, annotated, circular contig 25,980 bases in length. Species taxonomyEukaryota; Metazoa; Arthropoda; Hexapoda; Insecta; Pterygota; Neoptera; Paraneoptera; Hemiptera; Sternorrhyncha; Aphidomorpha; Adelgoidea; Adelgidae; Adelges; Annandina; Adelges (Annandina) tsugae Annand, 1924 (NCBI:txid357502)

genomics↗

bioRxiv2020

A near-chromosome level genome assembly of Anopheles stephensi

Malaria remains a major healthcare risk to growing economies like India and a chromosome-level reference genome of Anopheles stephensi is critical for successful vector management and an understanding of vector evolution. We report a chromosome-level assembly of an Indian strain from draft genomes of two strains using a homology-based iterative approach. The resulting assembly with an L50 of 9 had long enough scaffolds for building 90% of the three chromosomes using physical markers. The sequencing of individuals reveals a genetic diversity ten times higher than what is reported. Based on the developmental transcriptome and orthology of the 54 olfactory receptors (ORs) to those of other Anopheles species, we identify olfactory receptors with the potential for host recognition in the genus Anopheles. A comparative analysis of the genomes suggests limited inter-chromosomal gene flow and chromosomal arm switching with a potential role in adaptive radiation within the genus Anopheles.

genomics↗