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Record W1972485935 · doi:10.2135/cropsci2002.0021

Biplot Analysis of Diallel Data

2002· article· en· W1972485935 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueCrop Science · 2002
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicGenetics and Plant Breeding
Canadian institutionsUniversity of Guelph
Fundersnot available
KeywordsBiplotDiallel crossBiologyGenotypeBiotechnologyPrincipal component analysisHybridStatisticsGeneticsMathematicsAgronomyGene

Abstract

fetched live from OpenAlex

Ascochyta blight of pea (Pisum sativum L.) is a fungal disease caused by Mycosphaerella pinodes (Berk. & Bloxham) Verstergren, Phoma medicaginis Malbr. & Roum. var. pinodella (L.K. Jones) Boerema, and Ascochyta pisi Lib. that can result in significant reductions to pea yield and quality. To characterize the genetics of resistance and to identify molecular markers for use in plant breeding, quantitative trait loci (QTLs) affecting Ascochyta blight resistance were mapped in F2:3 and F2:4 families produced from a cross between resistant breeding line 3148-A88 and susceptible cultivar Rovar. A linkage map containing 96 loci on 11 linkage groups was constructed for 133 families from this cross. Resistance of progeny lines to natural Ascochyta blight epidemics was examined in field trials at Medina, Western Australia, in 1997, 1998, and 1999. Disease severity was assessed on stems, leaves, and pods by means of separate rating scales. Because pea shows increased susceptibility to Ascochyta blight as it matures, plant reproductive stage was assessed at the time of disease scoring in the 1998 and 1999 trials. Thirteen QTLs were detected for Ascochyta blight resistance on seven linkage groups. Eight of these QTLs were detected in multiple environments or by multiple trait scores. One QTL for plant developmental stage was detected. Linkage of Ascochyta blight resistance QTLs to candidate genes including disease response genes and resistance gene analogs and of the QTL for plant reproductive stage to a pea homolog of the Arabidopsis thaliana CONSTANS gene controlling flowering time in response to photoperiod is discussed.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.867
Threshold uncertainty score0.720

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.002
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.179
GPT teacher head0.252
Teacher spread0.073 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it