Summary: | <i>Bracon brevicornis</i> is an ectoparasitoid of a wide range of larval-stage Lepidopterans, including several pests of important crops, such as the corn borer, <i>Ostrinia nubilalis</i>. It is also one of the earliest documented cases of complementary sex determination in Hymenoptera. Here, we present the linked-read-based genome of <i>B. brevicornis</i>, complete with an ab initio-derived annotation and protein comparisons with fellow braconids, <i>Fopius arisanus</i> and <i>Diachasma alloeum</i>. We demonstrate the potential of linked-read assemblies in exploring regions of heterozygosity and search for structural and homology-derived evidence of the <i>complementary sex determiner</i> gene (<i>csd</i>).
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