scholarly journals Bracon brevicornis Genome Showcases the Potential of Linked-Read Sequencing in Identifying a Putative Complementary Sex Determiner Gene

Genes ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1390
Author(s):  
Kim B. Ferguson ◽  
Bart A. Pannebakker ◽  
Alejandra Centurión ◽  
Joost van den Heuvel ◽  
Ronald Nieuwenhuis ◽  
...  
Keyword(s):  
Sex Determination ◽  
Ab Initio ◽  
Larval Stage ◽  
Ostrinia Nubilalis ◽  
Corn Borer ◽  
Fopius Arisanus ◽  
Complementary Sex Determination ◽  
Wide Range ◽  
Diachasma Alloeum

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

scholarly journals Braconidae revisited: Bracon brevicornis genome showcases the potential of linked-read sequencing in identifying a putative complementary sex determiner gene

2020 ◽  
Author(s):  
K. B. Ferguson ◽  
B. A. Pannebakker ◽  
A. Centurión ◽  
J. van den Heuvel ◽  
R. Nieuwenhuis ◽  
...  
Keyword(s):  
Sex Determination ◽  
Ab Initio ◽  
Larval Stage ◽  
Ostrinia Nubilalis ◽  
Corn Borer ◽  
Fopius Arisanus ◽  
Complementary Sex Determination ◽  
Wide Range

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

PATHOGENICITY OF VAIRIMORPHA NECATRIX (MICROSPORIDIA: NOSEMATIDAE) AGAINST OSTRINIA NUBILALIS (LEPIDOPTERA: PYRALIDAE)

1982 ◽  
Vol 114 (7) ◽  
pp. 599-603 ◽  
Author(s):  
Leslie C. Lewis ◽  
Robert D. Gunnarson ◽  
Joan E. Cossentine
Keyword(s):  
Larval Stage ◽  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
Pupal Stage ◽  
Corn Borer ◽  
Lepidoptera Pyralidae

AbstractVairimorpha necatrix (Kramer) readily infects and kills the European corn borer, Ostrinia nubilalis (Hübner), in the laboratory. The corn borer is either killed in the larval stage within a few days after infection by disruption of the midgut and septicemia or in the pupal stage by microsporidiosis. Insects that are not killed by V. necatrix have a reduced potential for pupation, emergence, and reproduction.

scholarly journals Decline of European Corn Borer as a Pest of Potatoes

2010 ◽  
Vol 11 (1) ◽  
pp. 59 ◽  
Author(s):  
Thomas P. Kuhar ◽  
Gerald Ghidiu ◽  
Hélène B. Doughty
Keyword(s):  
North America ◽  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
Agricultural Crops ◽  
Corn Borer ◽  
Wide Range

European corn borer (ECB), Ostrinia nubilalis (Hübner), is regarded as a significant pest in North America. Larvae bore into stems, stalks, or the fruit of a wide range of agricultural crops. Published 29 January 2010.

Dynamics of Nosema pyrausta in natural populations of the European corn borer, Ostrinia nubilalis: A six-year study

BioControl ◽  
2006 ◽  
Vol 51 (5) ◽  
pp. 627-642 ◽  
Author(s):  
Leslie C. Lewis ◽  
Douglas V. Sumerford ◽  
Lori A. Bing ◽  
Robert D. Gunnarson
Keyword(s):  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
Natural Populations ◽  
Corn Borer

scholarly journals Unusually High Recombination Rate Detected in the Sex Locus Region of the Honey Bee (Apis mellifera)

Genetics ◽  
1999 ◽  
Vol 153 (4) ◽  
pp. 1701-1708 ◽  
Author(s):  
Martin Beye ◽  
Greg J Hunt ◽  
Robert E Page ◽  
M Kim Fondrk ◽  
Lore Grohmann ◽  
...  
Keyword(s):  
Sex Determination ◽  
Physical Mapping ◽  
Recombination Rate ◽  
Heterozygote Advantage ◽  
Range Restriction ◽  
Group Iii ◽  
Single Sex ◽  
Complementary Sex Determination ◽  
Sex Locus ◽  
Map Distance

Abstract Sex determination in Hymenoptera is controlled by haplo-diploidy in which unfertilized eggs develop into fertile haploid males. A single sex determination locus with several complementary alleles was proposed for Hymenoptera [so-called complementary sex determination (CSD)]. Heterozygotes at the sex determination locus are normal, fertile females, whereas diploid zygotes that are homozygous develop into sterile males. This results in a strong heterozygote advantage, and the sex locus exhibits extreme polymorphism maintained by overdominant selection. We characterized the sex-determining region by genetic linkage and physical mapping analyses. Detailed linkage and physical mapping studies showed that the recombination rate is <44 kb/cM in the sex-determining region. Comparing genetic map distance along the linkage group III in three crosses revealed a large marker gap in the sex-determining region, suggesting that the recombination rate is high. We suggest that a “hotspot” for recombination has resulted here because of selection for combining favorable genotypes, and perhaps as a result of selection against deleterious mutations. The mapping data, based on long-range restriction mapping, suggest that the Q DNA-marker is within 20,000 bp of the sex locus, which should accelerate molecular analyses.

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