scholarly journals Candidate chemosensory Genes in Female Antennae of the Noctuid Moth Spodoptera littoralis

2012 ◽  
Vol 8 (7) ◽  
pp. 1036-1050 ◽  
Author(s):  
Emmanuelle Jacquin-Joly ◽  
Fabrice Legeai ◽  
Nicolas Montagné ◽  
Christelle Monsempes ◽  
Marie-Christine François ◽  
...  
2018 ◽  
Vol 9 ◽  
Author(s):  
Nicolas Durand ◽  
Marie-Anne Pottier ◽  
David Siaussat ◽  
Françoise Bozzolan ◽  
Martine Maïbèche ◽  
...  

PLoS ONE ◽  
2013 ◽  
Vol 8 (4) ◽  
pp. e60263 ◽  
Author(s):  
Erwan Poivet ◽  
Aurore Gallot ◽  
Nicolas Montagné ◽  
Nicolas Glaser ◽  
Fabrice Legeai ◽  
...  

2021 ◽  
Vol 9 ◽  
Author(s):  
Fotini A. Koutroumpa ◽  
Christelle Monsempes ◽  
Marie-Christine François ◽  
Dany Severac ◽  
Nicolas Montagné ◽  
...  

Illumina-based transcriptome sequencing of chemosensory organs has become a standard in deciphering the molecular bases of chemical senses in insects, especially in non-model species. A plethora of antennal transcriptomes is now available in the literature, describing large sets of chemosensory receptors and binding proteins in a diversity of species. However, little is still known on other organs such as mouthparts, legs and ovipositors, which are also known to carry chemosensory sensilla. This is the case of the noctuid Spodoptera littoralis, which has been established as a model insect species in molecular chemical ecology thanks to the description of many—but not all—chemosensory genes. To fulfill this gap, we present here an unprecedented transcriptomic survey of chemosensory tissues in this species. RNAseq from male and female proboscis, labial palps, legs and female ovipositors allowed us to annotate 115 putative chemosensory gene transcripts, including 30 novel genes in this species. Especially, we doubled the number of candidate gustatory receptor transcripts described in this species. We also evidenced ectopic expression of many chemosensory genes. Remarkably, one third of the odorant receptors were found to be expressed in the proboscis. With a total of 196 non-overlapping chemosensory genes annotated, the S. littoralis repertoire is one of the most complete in Lepidoptera. We further evaluated the expression of transcripts between males and females, pinpointing sex-specific transcripts. We identified five female-specific transcripts, including one odorant receptor, one gustatory receptor, one ionotropic receptor and one odorant-binding protein, and one male-specific gustatory receptor. Such sex-biased expression suggests that these transcripts participate in sex-specific behaviors, such as host choice for oviposition in females and/or mating partner recognition in both sexes.


BMC Genomics ◽  
2011 ◽  
Vol 12 (1) ◽  
Author(s):  
Fabrice Legeai ◽  
Sébastien Malpel ◽  
Nicolas Montagné ◽  
Christelle Monsempes ◽  
François Cousserans ◽  
...  

2020 ◽  
Vol 81 ◽  
pp. 119-122
Author(s):  
Gergely Katona ◽  
Balázs Schermann ◽  
Orsolya Dombi ◽  
Balázs Tóth

Three larvae of the noctuid moth Spodoptera littoralis (Boisduval, 1833) have been found in Kistarcsa, Central Hungary in August, 2020. One caterpillar developed to adult stage, it is deposited in the Hungarian Natural History Museum, Budapest. This is the first record of this Afrotropical and subtropical species in Hungary. With 4 figures.


2013 ◽  
Vol 199 (5) ◽  
pp. 403-416 ◽  
Author(s):  
Alexandra Popescu ◽  
Louise Couton ◽  
Tor-Jørgen Almaas ◽  
Jean-Pierre Rospars ◽  
Geraldine A. Wright ◽  
...  

Author(s):  
M. Sato ◽  
Y. Ogawa ◽  
M. Sasaki ◽  
T. Matsuo

A virgin female of the noctuid moth, a kind of noctuidae that eats cucumis, etc. performs calling at a fixed time of each day, depending on the length of a day. The photoreceptors that induce this calling are located around the neurosecretory cells (NSC) in the central portion of the protocerebrum. Besides, it is considered that the female’s biological clock is located also in the cerebral lobe. In order to elucidate the calling and the function of the biological clock, it is necessary to clarify the basic structure of the brain. The observation results of 12 or 30 day-old noctuid moths showed that their brains are basically composed of an outer and an inner portion-neural lamella (about 2.5 μm) of collagen fibril and perineurium cells. Furthermore, nerve cells surround the cerebral lobes, in which NSCs, mushroom bodies, and central nerve cells, etc. are observed. The NSCs are large-sized (20 to 30 μm dia.) cells, which are located in the pons intercerebralis of the head section and at the rear of the mushroom body (two each on the right and left). Furthermore, the cells were classified into two types: one having many free ribosoms 15 to 20 nm in dia. and the other having granules 150 to 350 nm in dia. (Fig. 1).


Author(s):  
Eric Hallberg ◽  
Lina Hansén

The antennal rudiments in lepidopterous insects are present as disks during the larval stage. The tubular double-walled antennal disk is present beneath the larval antenna, and its inner layer gives rise to the adult antenna during the pupal stage. The sensilla develop from a cluster of cells that are derived from one stem cell, which gives rise to both sensory and enveloping cells. During the morphogenesis of the sensillum these cells undergo major transformations, including cell death. In the moth Agrotis segetum the pupal stage lasts about 14 days (temperature, 25°C). The antennae, clearly seen from the exterior, were dissected and fixed according to standard procedures (3 % glutaraldehyde in 0.15 M cacaodylate buffer, followed by 1 % osmiumtetroxide in the same buffer). Pupae from day 1 to day 8, of both sexes were studied.


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