Measurement of ploidy levels in species, hybrids and somaclones of Populus
Date
1997
Authors
Wang, Ju
Major Professor
Advisor
Hall, Richard B.
Committee Member
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Abstract
Polyploidy has been found to have some advantages, such as longer fibers and fast growth which are very important for tree improvement. How to measure polyploidy is a problem to be solved, especially for plants like poplar which have small, hard to count, and numbrous chromosomes. The diploid chromosome number is (2n=38) and the DNA content is only 1.1 pg/cell. Hybrid poplar has been designated as one of the primary focus species for biomass and industrial wood and pulp production in central Iowa. Therefore, finding fast and convenient methods to manipulate and measure polyploidy of Populus and observing how polyploidy can affect some important characteristics in hybrid poplar (Populus alba X P. grandidentata) are major objectives of my studies.
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thesis