Abstract
Ten genotypes of Solanum phureja Juz. and Buk. producing 2n pollen via fused (FS) and tripolar (TPS) spindles at the second meiotic division were grown in 2 consecutive years at a cool field site (E1, 8–22 °C) and in a warm greenhouse (E2, 14–40 °C) to examine environmental effects on mean frequency and phenotypic stability of 2n pollen production. Overall frequencies of big pollen (BP) and dyad formation were substantially higher in E1 in both years. The stable standard (154-1) gave almost complete expressions of dyads in E1, with no bud below 99%. Four other genotypes (413, 414, 416, 417) gave a similar response in E1, producing mean dyad frequencies between 93 and 99%, with no bud below 80%. The other four genotypes (420, 424, 427, 429) and the variable standard (127–14) produced higher dyad frequencies in E1 versus E2, but their phenotypes remained variable in E1, showing disparities up to 79% between buds of a single collection. The fidelity of stable and variable phenotypes in E1 was examined by scoring dyad frequencies in putatively stable (413, 414, 415, 416) versus variable (420, 424, 427, 127–14) genotypes at four dates spanning the flowering period in this environment. The four stable genotypes showed consistent expression of high dyad frequency (86–99%) at all four dates. In contrast, dyad frequencies of the variable genotypes were substantially lower and more variable between and within collections.
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Claims 10
Claim · model-written summary
Big pollen frequency was substantially higher at the cool field site in both years.
- Taxon
- Solanum phureja
Solanum phurejae1 - Outcome
- big pollen (BP)e0
- Direction
- highere0
- Comparator
- E1e0
- Setting
- cool field sitee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overall frequencies of big pollen (BP) and dyad formation were substantially higher in E1 in both years.”
e1“Ten genotypes of Solanum phureja Juz. and Buk. producing 2n pollen via fused (FS) and tripolar (TPS) spindles at the second meiotic division were grown in 2 consecutive years at a cool field site (E1, 8–22 °C) and in a warm greenhouse (E2, 14–40 °C)”
Claim · model-written summary
Dyad formation frequency was substantially higher at the cool field site in both years.
- Taxon
- Solanum phurejaSolanum phurejae1
- Outcome
- dyad formatione0
- Direction
- highere0
- Setting
- cool field sitee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overall frequencies of big pollen (BP) and dyad formation were substantially higher in E1 in both years.”
e1“Ten genotypes of Solanum phureja Juz. and Buk. producing 2n pollen via fused (FS) and tripolar (TPS) spindles at the second meiotic division were grown in 2 consecutive years at a cool field site (E1, 8–22 °C)”
Claim · model-written summary
Stable standard 154-1 had near-complete dyad expression in the cool site, with no bud below 99%.
- Taxon
- Solanum phurejaSolanum phurejae1
- Material
- 154-1e0
- Outcome
- expressions of dyadse0
- Value
- 99%e0
- Setting
- E1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stable standard (154-1) gave almost complete expressions of dyads in E1, with no bud below 99%.”
e1“Ten genotypes of Solanum phureja”
Claim · model-written summary
Genotype 413 produced 93–99% mean dyad frequency at the cool site.
- Taxon
- Solanum phurejaSolanum phurejae1
- Material
- 413e0
- Outcome
- mean dyad frequenciese0
- Value
- between 93 and 99%e0
- Setting
- E1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four other genotypes (413, 414, 416, 417) gave a similar response in E1, producing mean dyad frequencies between 93 and 99%, with no bud below 80%.”
e1“Ten genotypes of Solanum phureja”
Claim · model-written summary
Genotype 414 produced 93–99% mean dyad frequency at the cool site.
- Taxon
- Solanum phurejaSolanum phurejae1
- Material
- 414e0
- Outcome
- mean dyad frequenciese0
- Value
- between 93 and 99%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four other genotypes (413, 414, 416, 417) gave a similar response in E1, producing mean dyad frequencies between 93 and 99%, with no bud below 80%.”
e1“Ten genotypes of Solanum phureja”
Claim · model-written summary
Genotype 416 produced 93–99% mean dyad frequency at the cool site.
- Taxon
- Solanum phurejaSolanum phurejae1
- Material
- 416e0
- Outcome
- mean dyad frequenciese0
- Value
- between 93 and 99%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four other genotypes (413, 414, 416, 417) gave a similar response in E1, producing mean dyad frequencies between 93 and 99%, with no bud below 80%.”
e1“Ten genotypes of Solanum phureja”
Claim · model-written summary
Genotype 417 produced 93–99% mean dyad frequency at the cool site.
- Taxon
- Solanum phurejaSolanum phurejae1
- Material
- 417e0
- Outcome
- mean dyad frequenciese0
- Value
- between 93 and 99%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four other genotypes (413, 414, 416, 417) gave a similar response in E1, producing mean dyad frequencies between 93 and 99%, with no bud below 80%.”
e1“Ten genotypes of Solanum phureja”
Claim · model-written summary
Variable genotypes had higher dyad frequencies at the cool site but remained variable, with within-collection disparities up to 79%.
- Taxon
- Solanum phurejaSolanum phurejae1
- Outcome
- dyad frequenciese0
- Direction
- highere0
- Value
- 79%e0
- Qualifier
- phenotypes remained variable in E1e0
- Comparator
- E2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The other four genotypes (420, 424, 427, 429) and the variable standard (127–14) produced higher dyad frequencies in E1 versus E2, but their phenotypes remained variable in E1, showing disparities up to 79% between buds of a single collection.”
e1“Ten genotypes of Solanum phureja”
Claim · model-written summary
Stable genotypes consistently showed 86–99% dyad frequency on all four dates.
- Taxon
- Solanum phurejaSolanum phurejae1
- Outcome
- dyad frequencye0
- Direction
- highe0
- Value
- 86–99%e0
- Qualifier
- at all four datese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The four stable genotypes showed consistent expression of high dyad frequency (86–99%) at all four dates.”
e1“Ten genotypes of Solanum phureja”
Claim · model-written summary
Variable genotypes showed substantially lower and more variable dyad frequencies.
- Taxon
- Solanum phurejaSolanum phurejae1
- Outcome
- dyad frequenciese0
- Direction
- lowere0
- Qualifier
- more variable between and within collectionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dyad frequencies of the variable genotypes were substantially lower and more variable between and within collections.”
e1“Ten genotypes of Solanum phureja”