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Dryad

Squash preparations and living cells showing chromosome arrangement in mitosis, meiosis I, and meiosis II in green lacewing (Chrysoperla rufilabris) males

Data files

Jul 26, 2025 version files 2.57 GB

Abstract

In previously-studied species of insects in the order Neuroptera, sex chromosomes in males exhibit a phenomenon called "distance segregation," where the X and Y chromosomes are separated and associated with opposite poles from prometaphase I-anaphase I. This study aimed to determine the chromosome number and sex determination of a previously unstudied Neuropteran insect, the green lacewing Chrysoperla rufilabris (Burmeister, 1839).  Following determination of chromosome number and sex determination we examined images of fixed and living specimens to determine if distance segregation was observed. This dataset includes all of the raw images of living and aceto-orcein squashed cells that were observed to determine chromosome number, sex determination, and existence of distance segregation.