Abstract
Abstract A triploid elm was found among a group of atypical seedlings selected from a nursery bed of American elms. Cytological, morphological, and biochemical evidence indicated that it was a hybrid between American elm and Siberian elm. Although the tree has not borne any viable seed, it does produce apparently fertile pollen. Thus, it is possible that the triploid may be useful in transferring genes for Dutch elm disease resistance into American elm. Forest Sci. 16: 149-153.
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Claims 5
Claim · model-written summary
An atypical elm seedling was triploid.
Verbatim
e0“A triploid elm was found among a group of atypical seedlings selected from a nursery bed of American elms”
Claim · model-written summary
The triploid was identified as an American elm–Siberian elm hybrid.
- Taxon
- American elm
Ulmus americanae0 - Outcome
- hybrid between American elm and Siberian elme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was a hybrid between American elm and Siberian elm”
Claim · model-written summary
The hybrid had borne no viable seed.
- Taxon
- American elmUlmus americanae1
- Organ / stage
- seede0
- Outcome
- not borne any viable seede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the tree has not borne any viable seed”
e1“it was a hybrid between American elm and Siberian elm”
Claim · model-written summary
The hybrid produced apparently fertile pollen.
- Taxon
- American elmUlmus americanae1
- Organ / stage
- pollene0
- Outcome
- apparently fertile pollene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it does produce apparently fertile pollen”
e1“it was a hybrid between American elm and Siberian elm”
Claim · model-written summary
The authors suggested the triploid could transfer Dutch elm disease resistance genes into American elm.
- Taxon
- American elmUlmus americanae0
- Outcome
- transferring genes for Dutch elm disease resistance into American elme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it is possible that the triploid may be useful in transferring genes for Dutch elm disease resistance into American elm”