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“ITS sequence types”

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2000’10
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Mechanismauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Absence or rare occurrence of different ITS sequence types in polyploid Helictotrichon suggests frequent rDNA homogenization by concerted evolution.

Taxon
HelictotrichonHelictotrichone0
Gene
ribosomal DNAe1
Outcome
occurrence of different ITS sequence typese1
Qualifier
concerted evolutione1

Verbatim

e0

“We examined the molecular phylogeny and chromosomal features of European Helictotrichon species to explore the relationships within the genus and to investigate the origin of several polyploids”

✓ located verbatim in the source · abstract, characters 0–193
e1

“The absence or comparatively rare occurrence of different ITS sequence types in some (allo-) polyploid species of Helictotrichon suggests frequent intergenomic homogenization of ribosomal DNA (rDNA) loci due to the phenomenon of concerted evolution”

✓ located verbatim in the source · abstract, characters 928–1176

Title

Genome evolution in a Mediterranean species complex: phylogeny and cytogenetics ofHelictotrichon(Poaceae) allopolyploids based on nuclear DNA sequences (rDNA, topoisomerase gene) and FISH

Alexandra Wölk; Grit Winterfeld; Martin Röser Systematics and Biodiversity 2015. doi:10.1080/14772000.2015.1023867

Other claims from this paper (8)
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Crossover formation depends on regional DNA sequence or chromatin organization.

Outcome
crossover formatione0
Qualifier
DNA sequence or the chromatin organization of each chromosome regione0

Verbatim

e0

“crossover formation depends on the DNA sequence or the chromatin organization of each chromosome region”

✓ located verbatim in the source · abstract, characters 1171–1274
t0

“Rye Chromosome Added to Wheat”

✓ located verbatim in the source · title, characters 80–109
e1

“Three types of plants were analyzed: homozygotes for the standard chromosome 5R, homozygotes for a deficient chromosome 5R (del5R) with only the proximal 30% of its long arm (del5RL) and heterozygotes.”

✓ located verbatim in the source · abstract, characters 513–714

Title

Chiasma Frequency Is Region Specific and Chromosome Conformation Dependent in a Rye Chromosome Added to Wheat

T. Naranjo; N.T. Valenzuela; E. Perera Cytogenetic and Genome Research 2010. doi:10.1159/000314029

Other claims from this paper (6)
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The divergence pattern supports a hypothesis of more than one tetraploid ancestor for hexaploid wheat.

Taxon
hexaploid wheate0
Outcome
more than one tetraploid ancestore0
Qualifier
hypothesise0

Verbatim

e0

“supporting the hypothesis that hexaploid wheat may have more than one tetraploid ancestor”

✓ located verbatim in the source · abstract, characters 1195–1284

Title

Types and Rates of Sequence Evolution at the High-Molecular-Weight Glutenin Locus in Hexaploid Wheat and Its Ancestral Genomes

Yong Qiang Gu; Jérôme Salse; Devin Coleman-Derr; et al. Genetics 2006. doi:10.1534/genetics.106.060756

Other claims from this paper (5)
Mechanismhypothesisoriginal resultbasis n/a

Claim · model-written summary

Base peak substitutions in the ITS1 region of Aloe vera may arise from different nutritional and environmental factors in cultivation and growth stages.

Taxon
A.verae1
Outcome
base peak substitutions in the ITS 1 regione5
Qualifier
different nutritional and environmental factors in cultivation and plant growth stagese5

Verbatim

e1

“clonally regenerated A.vera and the same species in Japan, USA and Egypt revealed the presence of two types of nucleotide sequences, 252 and 254 bps”

✓ located verbatim in the source · abstract, characters 97–245
e5

“it was suggested that the base peak substitutions in the ITS 1 region may arise from the different nutritional and environmental factors in cultivation and plant growth stages”

✓ located verbatim in the source · abstract, characters 1001–1176

Title

RIBOSOMAL DNA SEQUENCE ANALYSIS OF DIFFERENT GEOGRAPHICALLY DISTRIBUTED ALOE VERA PLANTS: COMPARISON WITH CLONALLY REGENERATED PLANTS

Asami Yagi; Yasuko Sato; Yoshikazu Miwa; et al. Saudi Pharmaceutical Journal 2006

Other claims from this paper (5)
Mechanismhypothesisoriginal resultmeasured

Claim · model-written summary

Distinct Y centromere composition suggests chromatin may suppress recombination.

Taxon
C. grandisCoccinia grandise1
Outcome
suppression of recombinatione0
Qualifier
centromeric or pericentromeric chromatine0

Verbatim

e0

“That the Y centromere has a different make-up from all the remaining centromeres raises questions about its spindle attachment, and suggests that centromeric or pericentromeric chromatin might be involved in the suppression of recombination.”

✓ located verbatim in the source · abstract, characters 1151–1392
e1

“We compared the sequence composition of male and female C. grandis plants and determined the chromosomal distribution of repetitive and organellar DNA with probes developed from 21 types of repetitive DNA, including 16 mobile elements.”

✓ located verbatim in the source · abstract, characters 372–607

Title

Analysis of transposable elements and organellar DNA in male and female genomes of a species with a huge Y chromosome reveals distinct Y centromeres

Aretuza Sousa; Sidonie Bellot; Jörg Fuchs; et al. The Plant Journal 2016. doi:10.1111/tpj.13254

Other claims from this paper (3)

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