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Chromosome Numbers of New Ulmus (elm) Taxa Introduced from China


3.100289
Digitized
(Item)
4 pages
Article
March 21 – June 20 1997
In recent years, a number of "new" elm taxa have been introduced into the United States from China.  Experimentation on resistance of these taxa to Resistance of several other taxa to insects and diseases is needed. Preliminary to such experimentation, it is desirable to know the chromosome numbers of these taxa. If any of these new Chinese introductions proved to be tetraploid, they might be more crossable with American elm. Therefore, chromosome counts were made on all of these taxa, none of which have been reported previously.
diploid chromosome counts (2x = 2n = 28) are reported for the first time in 12 elm taxa newly introduced into the United States from China. These are Ulmus bergmanniana, U. bergmanniana var. lasiophylla, U. castaneifolia, U. changii, U. chenmoui, U. elongata, U. gaussenii, U. glaucescens, U. lamellosa, U. lanceaefolia, U. szechuanica, and U. taihang shanensis
99, 898, 148-151
Cytology
Cytotaxonomy
Elm
Ulmus L. (elm)
Ware, George (authored by (2nd))
New England Botanical Club. (published by)
Rhodora (published by)
English
Copyright statement: Copyright restrictions applying to use or reproduction of this image are available from the Sterling Morton Library, The Morton Arboretum. For more information, please visit our ABOUT section or complete and submit this form.