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Release Notes
Experiment "Mapping quantitative trait loci for yield, yield componen..."
| Title | Mapping quantitative trait loci for yield, yield components and morphological traits in an advanced backcross population between Oryza rufipogon and the Oryza sativa cultivar Jefferson |
|---|---|
| Design | Phenotypic evaluation was done in a greenhouse for 353 BC2F1 families and in three field trials for 258 BC2F2 families. Genotyping (104 SSRs and 49 RFLPs) was done on the 353 BC2F2 families |
| Polymorphism Type (2) | SSR, RFLP |
| Allele Scoring Protocol (2) | Geneotype value 1= Homozygous Jefferson; 3 = Heterozygous Jefferson/O. rufipogon., |
| PI(s) | McCouch-S-R |
| Comments | Seventy-six QTLs were identified using interval mapping and composite interval mapping. A putative QTL was reported if detected in at least one environment at an experiment-wise significance threshold of P < 0.01. Reference: Thomson et al., 2003. |
Germplasm (1,697)
Markers (153)
| Marker Name | |
|---|---|
| CDO105 | Show Allele Data |
| CDO1338 | Show Allele Data |
| CDO36 | Show Allele Data |
| CDO544 | Show Allele Data |
| CDO590 | Show Allele Data |
| CDO718 | Show Allele Data |
| CDO98 | Show Allele Data |
| RG1109 | Show Allele Data |
| RG118 | Show Allele Data |
| RG1356 | Show Allele Data |
| RG30 | Show Allele Data |
| RG331 | Show Allele Data |
| RG351 | Show Allele Data |
| RG358 | Show Allele Data |
| RG532 | Show Allele Data |
| RG811 | Show Allele Data |
| RG869 | Show Allele Data |
| RG901 | Show Allele Data |
| RM10 | Show Allele Data |
| RM104 | Show Allele Data |
| RM106 | Show Allele Data |
| RM119 | Show Allele Data |
| RM124 | Show Allele Data |
| RM125 | Show Allele Data |
| RM126 | Show Allele Data |
QTL (0)
Phenotype Data (1,697)
Traits (13)
| Trait Name | Trait Ontology Accession | Phenotype Measurement |
|---|---|---|
| 100-grain weight | TO:0000269 | Grain weight was measured, in grams, as the average weight of 100 kernels. |
| Awn length | TO:0000072 | Awns were ranked in five categories, 1-5 scale, from no awns to awns over 1 cm in length. |
| Days to heading | TO:0000137 | Days to heading was evaluated on 10 plants per row as the number of days from seeding to until 10% of the panicles had emerged. |
| Germination rate | TO:0000430 | Percent germination was determined using 30 kernels that had been harvested 30 days after the panicle had flowered, dried at 45 °C for 4 days, soaked in water for 2 days, and then transferred to moist filter paper in closed petri dishes for 4 days. |
| Grain shattering | TO:0000473 | Shattering was estimated using five categories, 1-5 scale, ranging from non-shattering (seeds are difficult to pull off the panicle) to highly shattering (seeds fall freely without touching the panicle) at the time of harvest. |
| Grain yield per plant | TO:0000449 | Yield per plant was determined, in grams, as the average weight of bulked harvested grain per plant from at least ten plants. |
| Grains per panicle | TO:0000450 | Grains per panicle was measured as the average number of filled spikelets per panicle on the primary panicle of each plant. |
| Panicle length | TO:0000040 | Panicle length was measured as the average number of centimeters from the panicle neck to the panicle tip, excluding awns. |
| Panicle number | TO:0000152 | Panicles per plant was calculated as the average number of panicles per plant at harvest. |
| Plant height | TO:0000207 | Plant height was measured in centimeters from the soil surface to the tip of the tallest panicle, excluding the awns. |
| Seed set percent | TO:0000455 | Percent seed set was determined as the number of filled grains per panicle divided by the total number of spikelets per panicle. |
| Spikelet number | TO:0000456 | Spikelets per panicle was calculated as the average total number of spikelets (florets) per panicle measured on the primary panicle of each plant. |
| Tiller angle | TO:0000567 | Tiller type consisted of two categories - erect tiller type and lazy tiller type (greater than 10 degrees from the vertical). |
Database Cross-References (1)
