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VOL. 6, ISSUE 5 (2021)
Maternal age induced changes in the reproductive traits of the bruchid beetle, Callosobruchus chinensis (L.) (Coleoptera: Bruchidae)
Authors
Md Anisur Rahman, Fatema-Tuz-Zohora, Moni Krishno Mohanta, Ananda Kumar Saha, M Habibur Rahman
Abstract
Maternal age means the mother’s age during reproduction which has a great impact on reproductive traits of different animals. The influence of maternal age on some reproductive traits of Callosobruchus chinensis (L.) like fecundity, duration of immature stage, adult emergence and adult longevity was evaluated in the present study. The fecundity for younger mother 26.50±6.55, older mother 12.96±4.14, and oldest mother 10.46±3.75 revealed that the values were decreased significantly (F2,147=150.60; P<0.01) with the increase of maternal age. The duration of immature stages were 20.42±0.56 days for younger, 22.91±1.10 days for older, and 23.36±0.69 days for oldest showed significant increase (F2,104=134.25; P<0.01) where oldest mothers had offspring with longest length of egg-adult development. The adult emergence value (64.40±22.05) was highest in oldest mother while the younger and older mother had the values as 60.99±21.76 and 33.23±23.84 which were significantly different (F2,102=20.06; P<0.01). The life span (in days) of males from younger mother was 8.50±1.08, older mother was 8.40±0.84 and oldest mother was 7.20±1.22 showed a gradual decrease (F2,27=4.63; P<0.05). Similar consequences were found in females from younger mother, older mother and oldest mother (11.60±1.42 days, 9.60±1.26 days and 8.00±1.05 days; F2,27=20.52; P<0.01). Mated males were with less life span comparing to unmated males (5.86±0.63 days, 8.20±0.42 days; t=33.28, P<0.001) and similar pattern was in mated females and unmated females (7.08±0.77 days, 11.40±1.34 days; t=7.82, P<0.001). The increase of reproductive age of mother decreased the values of reproductive traits. The stronger responses to reproductive traits indicated that they were much more sensitive to senescence than that of offspring from older or oldest mothers. Thus, the present results suggested that maternal senescence is indicative to population dynamics and trans generational selection on these traits might lead to evolution in Coleopteran species.
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Pages:189-195
How to cite this article:
Md Anisur Rahman, Fatema-Tuz-Zohora, Moni Krishno Mohanta, Ananda Kumar Saha, M Habibur Rahman "Maternal age induced changes in the reproductive traits of the bruchid beetle, <em>Callosobruchus chinensis</em> (L.) (Coleoptera: Bruchidae) ". International Journal of Entomology Research, Vol 6, Issue 5, 2021, Pages 189-195
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