Abstract
Recently, in southern and central Vietnam, foraging columns of D. orientalis which contained not only "typical" workers but also a few "atypical" workers were collected. The atypical worker mentioned above is characterized by a set of the following features: (1) head narrowed anteriorly, (2) median portion of clypeus strongly projecting anteriad, and (3) antenna 8-segmented. Sequences of the 658-base standard mitochondrial DNA barcoding region were completely identical between typical and atypical workers. Therefore, the condition observed was a case of worker polymorphism within a colony. The mode of polymorphism observed has the following interesting aspects: (1) workers are clearly subdivided into two series by a set of qualitative characters; (2) the "typical series" is numerically much more dominant than the "atypical series" (the latter occupied less than 1% of the whole of the workers collected); (3) a wider size variation was observed in the former (HW, 0.48-1.41. mm; ML, 0.42-1.12. mm) than in the latter (HW, 0.44-1.13. mm; ML, 0.35-0.79. mm); and (4) within the atypical series, smaller workers are numerically much dominant. Rareness of the workers belonging to the atypical series in foraging column as well as morphological differences between the two series suggests a certain possibility that the atypical series does not adapt to foraging but to other tasks in the colony's life history.
| Original language | English |
|---|---|
| Pages (from-to) | 31-36 |
| Number of pages | 6 |
| Journal | Journal of Asia-Pacific Entomology |
| Volume | 17 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Mar 1 2014 |
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All Science Journal Classification (ASJC) codes
- Insect Science
Cite this
A new data of worker polymorphism in the ant genus Dorylus (Hymenoptera : Formicidae: Dorylinae). / Eguchi, Katsuyuki; Bui, Viet Tuan; Oguri, Emiko; Maruyama, Munetoshi; Yamane, Seiki.
In: Journal of Asia-Pacific Entomology, Vol. 17, No. 1, 01.03.2014, p. 31-36.Research output: Contribution to journal › Article
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TY - JOUR
T1 - A new data of worker polymorphism in the ant genus Dorylus (Hymenoptera
T2 - Formicidae: Dorylinae)
AU - Eguchi, Katsuyuki
AU - Bui, Viet Tuan
AU - Oguri, Emiko
AU - Maruyama, Munetoshi
AU - Yamane, Seiki
PY - 2014/3/1
Y1 - 2014/3/1
N2 - Recently, in southern and central Vietnam, foraging columns of D. orientalis which contained not only "typical" workers but also a few "atypical" workers were collected. The atypical worker mentioned above is characterized by a set of the following features: (1) head narrowed anteriorly, (2) median portion of clypeus strongly projecting anteriad, and (3) antenna 8-segmented. Sequences of the 658-base standard mitochondrial DNA barcoding region were completely identical between typical and atypical workers. Therefore, the condition observed was a case of worker polymorphism within a colony. The mode of polymorphism observed has the following interesting aspects: (1) workers are clearly subdivided into two series by a set of qualitative characters; (2) the "typical series" is numerically much more dominant than the "atypical series" (the latter occupied less than 1% of the whole of the workers collected); (3) a wider size variation was observed in the former (HW, 0.48-1.41. mm; ML, 0.42-1.12. mm) than in the latter (HW, 0.44-1.13. mm; ML, 0.35-0.79. mm); and (4) within the atypical series, smaller workers are numerically much dominant. Rareness of the workers belonging to the atypical series in foraging column as well as morphological differences between the two series suggests a certain possibility that the atypical series does not adapt to foraging but to other tasks in the colony's life history.
AB - Recently, in southern and central Vietnam, foraging columns of D. orientalis which contained not only "typical" workers but also a few "atypical" workers were collected. The atypical worker mentioned above is characterized by a set of the following features: (1) head narrowed anteriorly, (2) median portion of clypeus strongly projecting anteriad, and (3) antenna 8-segmented. Sequences of the 658-base standard mitochondrial DNA barcoding region were completely identical between typical and atypical workers. Therefore, the condition observed was a case of worker polymorphism within a colony. The mode of polymorphism observed has the following interesting aspects: (1) workers are clearly subdivided into two series by a set of qualitative characters; (2) the "typical series" is numerically much more dominant than the "atypical series" (the latter occupied less than 1% of the whole of the workers collected); (3) a wider size variation was observed in the former (HW, 0.48-1.41. mm; ML, 0.42-1.12. mm) than in the latter (HW, 0.44-1.13. mm; ML, 0.35-0.79. mm); and (4) within the atypical series, smaller workers are numerically much dominant. Rareness of the workers belonging to the atypical series in foraging column as well as morphological differences between the two series suggests a certain possibility that the atypical series does not adapt to foraging but to other tasks in the colony's life history.
UR - http://www.scopus.com/inward/record.url?scp=84886257716&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84886257716&partnerID=8YFLogxK
U2 - 10.1016/j.aspen.2013.09.004
DO - 10.1016/j.aspen.2013.09.004
M3 - Article
VL - 17
SP - 31
EP - 36
JO - Journal of Asia-Pacific Entomology
JF - Journal of Asia-Pacific Entomology
SN - 1226-8615
IS - 1
ER -