Words similar to pisum
Example sentences for: pisum
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Once winter has commenced, diapause ends and the insect enters post-diapause quiescence, relying on persistent low temperatures to maintain developmental arrest [ 27 ] . This appears to be the case in A. pisum . The aphid clone used for the experiment would normally oviposit in mid-October, when the average daily temperature is 9°C with a maximum of 15°C [ 32 ] . By day 28 the embryos would be exposed to average daily temperatures of 3°C.
The genetic pathways involved in the development of A. pisum embryos must build an animal under two conditions.
Presumably the same pathways are involved in both processes - it would be surprising if A. pisum were to have different sets of genes for the two modes of development.
The one system where diapause has been well elucidated, dauer formation in the nematode C. elegans , indicates that the insulin pathway plays an important role [ 34 ] . Recent work on mutant Drosophila that mimic reproductive diapause in adults also suggests a role for insulin [ 35 36 ] . Insulin, which regulates growth in other stages of development in Drosophila [ 37 38 ] , may therefore play a similar role during A. pisum diapause.
The sexually-produced A. pisum embryo lacked a distinct resting stage when maintained at 0-4°C.