Abstract
1. The cytogenetical studies were carried out on F1's (Triticum Timopheevi× Secale cereale) obtained by embryo-culture technique and open F2 progenies derived from them.2. In somatic cells of F1's, 21 chromosomes were ascertained, and their modal chromosome configuration at MI of PMCs was in 1II+19II.3. From two F1's, 26 mature open F2 plants were obtained, the 2n chromosome numbers of which varied from 23 to 30 successively, except one plant having 2n=41. No amphidiploid was to be found among them.4. From the results of cytogenetical and morphological studies, it was concluded that all of the open F2 plants, except one having 2n=41, were natural back-crossed plants with the rye pollen, normal, accessory chromosomic or translocated with x-ray grown adjacent to F1's the preceding year.Only one plant having 2n=41 was also proved to be a natural back-crossed plant with the common wheat pollen.
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Claims 7
Claim · model-written summary
Somatic cells of the F1 hybrids had 21 chromosomes.
- Taxon
- Triticum Timopheevi× Secale cereale
Secale cerealee6 - Material
- F1e6
- Organ / stage
- somatic cellse0
- Outcome
- chromosomese0
- Value
- 21 chromosomese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“F1's (Triticum Timopheevi× Secale cereale) obtained by embryo-culture technique”
e0“In somatic cells of F1's, 21 chromosomes were ascertained”
Claim · model-written summary
Pollen mother cells of the F1 hybrids at metaphase I had a modal configuration of 1II+19II.
- Taxon
- Triticum Timopheevi× Secale cerealeSecale cerealee6
- Organ / stage
- PMCse1
- Outcome
- modal chromosome configuratione1
- Value
- 1II+19IIe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“F1's (Triticum Timopheevi× Secale cereale) obtained by embryo-culture technique”
e1“their modal chromosome configuration at MI of PMCs was in 1II+19II”
Claim · model-written summary
The 2n chromosome numbers of the 26 open F2 plants varied from 23 to 30.
- Taxon
- Triticum Timopheevi× Secale cerealeSecale cerealee6
- Material
- open F2 plantse2
- Outcome
- 2n chromosome numberse2
- Value
- 23 to 30e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“F1's (Triticum Timopheevi× Secale cereale) obtained by embryo-culture technique”
e2“From two F1's, 26 mature open F2 plants were obtained, the 2n chromosome numbers of which varied from 23 to 30 successively, except one plant having 2n=41”
Claim · model-written summary
One open F2 plant had 2n=41 chromosomes.
- Taxon
- Triticum Timopheevi× Secale cerealeSecale cerealee6
- Material
- open F2 plantse2
- Outcome
- 2n chromosome numberse2
- Value
- 2n=41e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“F1's (Triticum Timopheevi× Secale cereale) obtained by embryo-culture technique”
e2“From two F1's, 26 mature open F2 plants were obtained, the 2n chromosome numbers of which varied from 23 to 30 successively, except one plant having 2n=41”
Claim · model-written summary
No amphidiploid was found among the open F2 plants.
- Taxon
- Triticum Timopheevi× Secale cerealeSecale cerealee6
- Material
- open F2 plantse2
- Outcome
- amphidiploide3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“F1's (Triticum Timopheevi× Secale cereale) obtained by embryo-culture technique”
e2“From two F1's, 26 mature open F2 plants were obtained, the 2n chromosome numbers of which varied from 23 to 30 successively, except one plant having 2n=41”
e3“No amphidiploid was to be found among them”
Claim · model-written summary
The open F2 plants other than the 2n=41 plant were natural back-crossed plants with rye pollen.
- Taxon
- Triticum Timopheevi× Secale cerealeSecale cerealee6
- Interactor
- rye pollene4other
- Outcome
- natural back-crossed plantse4
- Qualifier
- except one having 2n=41e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“F1's (Triticum Timopheevi× Secale cereale) obtained by embryo-culture technique”
e4“all of the open F2 plants, except one having 2n=41, were natural back-crossed plants with the rye pollen”
Claim · model-written summary
The one open F2 plant with 2n=41 was a natural back-cross with common wheat pollen.
- Taxon
- Triticum Timopheevi× Secale cerealeSecale cerealee6
- Interactor
- common wheat pollene5other
- Outcome
- natural back-crossed plante5
- Qualifier
- Only one plant having 2n=41e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“F1's (Triticum Timopheevi× Secale cereale) obtained by embryo-culture technique”
e5“Only one plant having 2n=41 was also proved to be a natural back-crossed plant with the common wheat pollen”