Paper · 1928 · Shokubutsugaku Zasshi

Genetic Studies of Leaf-Characters in Morning Glories VII

TOKIO HAGIWARA

9
claims
18
verbatim quotes
1
citations
2
research areas
✓
Open access

Abstract

1. Some individuals of the spiral tortion at the leaf-stalk and the stem appeared unexpectedly at the rate of about one to three normal individuals in F2 of a crossing, in spith of the fact that such character was not exhibited in F1 and its parents.2. It was confirmed by raising of F3 the fact that this character behaves to the normal as a Mendelian recessive. This abnormal individual may be probably a mutant.3. Unless the factor (tw) for this character exists in same zygote with p for “Kudyaku” leaf, this character seems to be unable to reach its full development, though sometimes it develops slightly in the case of Ptw.4. The cross-over percentage between tw and p may be 25.5. There are individuals characterized by the bearing of the flower at the apex of the flower-branch having some leaves, in addition to the fact that the bract is abnormal on account of being large as the normal leaf.6. These characters owe to a factor which acts as a recessive to the normal. Then, the hybrid between normal bract-plants and the abnormal segregetes both normal and abnormal offsprings in the ratio of 3:1 in F2, but such cases that the segregating ratio of the abnormal bract is law, were in F3 and F2 of some crossings.7. The cross-over percentage 33, 33 may take place between a factor (a) for this character and a factor (k) for “Tombo” leaf.

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Claims 9

Observationobservedoriginal resultmeasured

Claim · model-written summary

Spiral torsion appeared in F2 at about one to three normal individuals despite absence in F1 and parents.

Taxon
Morning Gloriest0
Organ / stage
leaf-stalk and the steme0
Outcome
spiral tortion at the leaf-stalk and the steme0
Value
about one to three normal individualse0

Verbatim

e0

“Some individuals of the spiral tortion at the leaf-stalk and the stem appeared unexpectedly at the rate of about one to three normal individuals in F2 of a crossing, in spith of the fact that such character was not exhibited in F1 and its parents.”

✓ located verbatim in the source · abstract, characters 3–250 · show in text ↑
t0

“Morning Glories”

✓ located verbatim in the source · title, characters 38–53 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

F3 progeny confirmed recessive Mendelian inheritance of the torsion trait.

Taxon
Morning Gloriest0
Outcome
behaves to the normal as a Mendelian recessivee0

Verbatim

e0

“It was confirmed by raising of F3 the fact that this character behaves to the normal as a Mendelian recessive.”

✓ located verbatim in the source · abstract, characters 253–363 · show in text ↑
t0

“Morning Glories”

✓ located verbatim in the source · title, characters 38–53 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Full torsion development appears to require both tw and p in the same zygote.

Taxon
Morning Gloriest0
Gene
twe0
Outcome
full developmente0
Qualifier
exists in same zygote with p for “Kudyaku” leafe0

Verbatim

e0

“Unless the factor (tw) for this character exists in same zygote with p for “Kudyaku” leaf, this character seems to be unable to reach its full development, though sometimes it develops slightly in the case of Ptw.”

✓ located verbatim in the source · abstract, characters 417–630 · show in text ↑
t0

“Morning Glories”

✓ located verbatim in the source · title, characters 38–53 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Estimated crossover frequency between tw and p was 25.

Taxon
Morning Gloriest0
Gene
twe0
Outcome
cross-over percentage between tw and pe0
Value
25e0

Verbatim

e0

“The cross-over percentage between tw and p may be 25.”

✓ located verbatim in the source · abstract, characters 633–686 · show in text ↑
t0

“Morning Glories”

✓ located verbatim in the source · title, characters 38–53 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Some plants bore an apical flower on a leafy flower branch and had enlarged abnormal bracts.

Taxon
Morning Gloriest0
Organ / stage
flower-branche0
Outcome
bearing of the flower at the apex of the flower-branch having some leavese0

Verbatim

e0

“There are individuals characterized by the bearing of the flower at the apex of the flower-branch having some leaves, in addition to the fact that the bract is abnormal on account of being large as the normal leaf.”

✓ located verbatim in the source · abstract, characters 689–903 · show in text ↑
t0

“Morning Glories”

✓ located verbatim in the source · title, characters 38–53 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The abnormal bract characters were attributed to a recessive factor.

Taxon
Morning Gloriest0
Outcome
acts as a recessive to the normale0
Qualifier
a factore0

Verbatim

e0

“These characters owe to a factor which acts as a recessive to the normal.”

✓ located verbatim in the source · abstract, characters 906–979 · show in text ↑
t0

“Morning Glories”

✓ located verbatim in the source · title, characters 38–53 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Normal-bract hybrids segregated normal and abnormal offspring 3:1 in F2.

Taxon
Morning Gloriest0
Outcome
normal and abnormal offspringse0
Value
3:1e0

Verbatim

e0

“the hybrid between normal bract-plants and the abnormal segregetes both normal and abnormal offsprings in the ratio of 3:1 in F2”

✓ located verbatim in the source · abstract, characters 986–1114 · show in text ↑
t0

“Morning Glories”

✓ located verbatim in the source · title, characters 38–53 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Some F3 and F2 crosses had a low abnormal-bract segregation ratio.

Taxon
Morning Gloriest0
Outcome
segregating ratio of the abnormal bracte0
Direction
lawe0

Verbatim

e0

“such cases that the segregating ratio of the abnormal bract is law, were in F3 and F2 of some crossings.”

✓ located verbatim in the source · abstract, characters 1120–1224 · show in text ↑
t0

“Morning Glories”

✓ located verbatim in the source · title, characters 38–53 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The crossover percentage between a and k may be 33, 33.

Taxon
Morning Gloriest0
Gene
a factor (a)e0
Outcome
cross-over percentagee0
Value
33, 33e0

Verbatim

e0

“The cross-over percentage 33, 33 may take place between a factor (a) for this character and a factor (k) for “Tombo” leaf.”

✓ located verbatim in the source · abstract, characters 1227–1349 · show in text ↑
t0

“Morning Glories”

✓ located verbatim in the source · title, characters 38–53 · show in text ↑