Related Experiment Video
Updated: Sep 20, 2025

Manipulation of Ploidy in Caenorhabditis elegans
Published on: March 15, 2018
Chromosome-level genome of a multivoltine biotype Ostrinia furnacalis strain
Kaiqiang Liu1, Tiantao Zhang2, Yongjun Zhang1
1State Key Laboratory for the Biology of the Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
Abstract:
The Asian corn borer (Ostrinia furnacalis), a major economic pest of crops such as corn, sugarcane, millet, and sorghum, is widely distributed from Asia to the western Pacific islands. Its broad distribution and polyphagous traits are largely due to its larval diapause, which allows survival during winter. To facilitate genetic studies on its adaptability, we generated a high-quality genome assembly for O. furnacalis using Illumina, PacBio, and Hi-C technologies. The assembled 481.9 Mb genome comprises 135 scaffolds with an N50 of 16.6 Mb, and 98.5% of the sequences were assigned to 31 chromosomes through Hi-C scaffolding. Gene prediction identified 16,272 genes, with 97.0% completeness based on BUSCO assessment. This chromosome-level genome assembly and gene annotation provide an invaluable resource for studying the genetic variation of O. furnacalis and offer new insights into its diapause mechanism and adaptability.
Related Concept Videos
Polytene Chromosomes
Lampbrush Chromosomes
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops...
Heterochromatin
Constitutive heterochromatin: It is a highly compact region of chromatin that is mostly concentrated in the centromere and telomere. Unlike euchromatin, the amino acid at...
Position-effect Variegation
The Ratio of X Chromosome to Autosomes
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female...

