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Updated: Jun 22, 2026

Non-radioactive in situ Hybridization Protocol Applicable for Norway Spruce and a Range of Plant Species
Published on: April 17, 2009
[Microsporogenesis and pollen formation in Scotch pine (Pinus sylvestris L.)]
Abstract:
The prolongation of a warm season during autumn, typical for the Siberia in recent 5-6 years, caused changes in the terms of reproductive processes in microsporangia of Scotch pine in the Krasnoyarsk region. The meiosis started in the autumn of the year, preceding the pollination, and comes to the end in next spring, whereas usually this process occurs in the spring of the year of pollination. In such conditions the division of microsporocytes accompanied with different abnormalities, causing various anomalies and the incomplete development of pollen grains.
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