Maternal-care behaviour in<i>Adomerus variegatus</i>(Hemiptera: Cydnidae)

Mukai, Hiromi; Hironaka, Mantaro; Baba, Narumi; Yanagi, Takao; Inadomi, Koichi; Filippi, Lisa; Nomakuchi, Shintaro

doi:10.4039/n09-045

Cited by 21 publications

(22 citation statements)

References 19 publications

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“…In this context, it should be noted that some stinkbugs of the family Acanthosomatidae are known as subsocial, in which adult females lay an egg mass on the open plant surface, keep the eggs under their body, and defend the offspring against enemies [35]–[38], but they excrete symbiont-containing materials onto eggs upon oviposition [14], [39]. In future studies, more detailed ecological aspects of other subsocial stinkbugs, including C. atterimus , A. rotundus and A. variegatus [20], [25], [40], should be examined.…”

Section: Discussionmentioning

confidence: 99%

Diverse Strategies for Vertical Symbiont Transmission among Subsocial Stinkbugs

et al. 2013

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Sociality may affect symbiosis and vice versa. Many plant-sucking stinkbugs harbor mutualistic bacterial symbionts in the midgut. In the superfamily Pentatomoidea, adult females excrete symbiont-containing materials from the anus, which their offspring ingest orally and establish vertical symbiont transmission. In many stinkbug families whose members are mostly non-social, females excrete symbiont-containing materials onto/beside eggs upon oviposition. However, exceptional cases have been reported from two subsocial species representing the closely related families Cydnidae and Parastrachiidae, wherein females remain nearby eggs for maternal care after oviposition, and provide their offspring with symbiont-containing secretions at later stages, either just before or after hatching. These observations suggested that sociality of the host stinkbugs may be correlated with their symbiont transmission strategies. However, we found that cydnid stinkbugs of the genus Adomerus, which are associated with gammaproteobacterial gut symbionts and exhibit elaborate maternal care over their offspring, smear symbiont-containing secretions onto eggs upon oviposition as many non-social stinkbugs do. Surface sterilization of the eggs resulted in aposymbiotic insects of slower growth, smaller size and abnormal body coloration, indicating vertical symbiont transmission via egg surface contamination and presumable beneficial nature of the symbiosis. The Adomerus symbionts exhibited AT-biased nucleotide compositions, accelerated molecular evolutionary rates and reduced genome size, while these degenerative genomic traits were less severe than those in the symbiont of a subsocial parastrachiid. These results suggest that not only sociality but also other ecological and evolutionary aspects of the host stinkbugs, including the host-symbiont co-evolutionary history, may have substantially affected their symbiont transmission strategies. (250 words).

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Section: Discussionmentioning

confidence: 99%

Diverse Strategies for Vertical Symbiont Transmission among Subsocial Stinkbugs

et al. 2013

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“…Like the related group Parastrachiidae, burrower bugs of the Sehirinae (i.e., S. cinctus and Adomerus spp.) present subsocial behavior (maternal care), which includes production of trophic eggs, egg guarding, protection of nymphs, and progressive provisioning (Sites and McPherson 1982 ;Mukai et al 2010Mukai et al , 2012Nakahira et al 2013 ). The subsocial behavior in Sehirinae always occurs in the ground (see description for S. c. cinctus below).…”

Section: Subfamily Sehirinaementioning

confidence: 99%

Burrower Bugs (Cydnidae)

Schwertner

Nardi

2015

Entomology in Focus

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Burrower bugs are typical pentatomoid insects, small to medium in size, recognized by the morphological adaptations for digging. However, some cydnids live aboveground or on vegetation, feeding on falling seeds or even plant tissues.The family has a worldwide distribution, being well represented in tropical and temperate regions, known in the fossil record since at least the Late Cretaceous. Cydnidae includes more than 750 species in 93 genera, divided in six subfamilies. In the Neotropical region, 145 species are recorded and included in the subfamilies Amnestinae (38 spp.), Cephalocteinae (eight), Cydninae (97), and Sehirinae (one). The monophyly of the Cydnidae and phylogenetic relationships with other pentatomoid families are still controversial. Among the subfamilies, only Cephalocteinae has a strong support in a phylogenetic context. Burrower bugs are phytophagous and seem to be polyphagous, and although the group has been considered of little economic importance, damage to crops in the Neotropical region has been growing in the last 15 years. Because of the burrowing habits and small size of most of the species, people unnoticed its presence, limiting taxonomic characterization, host plants records, as well as damage and symptoms to cultivated plants. In this chapter, an overview of the group in the Neotropical region is presented, including an identifi cation key for subfamilies and genera with the characterization of the commonest species.

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“…japonica (Rehder) Nakai (Ulmaceae) (Mukai et al 2010); Canthophorus niveimarginatus feeds on Thesium chinense Turcz. (Santalaceae) (Filippi et al 2009); Parastrachia japonensis feeds on Schoepfia jasminodora Siebold and Zucc.…”

Section: Discussionmentioning

confidence: 99%

“…The bugs with extended parental behavior are: Sehirus cinctus cinctus (Palisot de Beauvois) (Sites & McPherson 1982;Agrawal et al 2004Agrawal et al , 2005; Adomerus triguttulus (Motchulsky) (Kudo & Nakahira 2004Kudo et al 2006;Nakahira & Kudo 2008); Adomerus variegatus (Signoret) (Mukai et al 2010); Canthophorus niveimarginatus Scott (Sehirinae) (Filippi et al 2009;Baba et al 2011); and the most studied Parastrachia japonensis Scott (Parastrachidae) (Tachikawa & Schaefer 1985;Tsukamoto & Tojo 1992;Tsukamoto et al 1994;Filippi et al 1995aFilippi et al , 1995bFilippi et al , 2000aFilippi et al , 2000bFilippi et al , 2001Filippi et al , 2002Filippi et al , 2005Nomakuchi et al 1998;Hironaka et al 2005Hironaka et al , 2007aHironaka et al , 2007bHironaka et al , 2007cTojo et al 2005). In a laboratory experiment adults and nymphs of Adrisa magna Uhler were observed to carry seeds of Sophora japonica L. (Leguminosae) to shelter places allowing communal feeding and possible provisioning for nymphs (Takeuchi & Tamura 2000).…”

Section: Introductionmentioning

confidence: 99%