http://www.cnr.it/ontology/cnr/individuo/prodotto/ID283761
Quantitative trait loci influencing grain protein content in tetraploid wheats (Articolo in rivista)
- Type
- Label
- Quantitative trait loci influencing grain protein content in tetraploid wheats (Articolo in rivista) (literal)
- Anno
- 1996-01-01T00:00:00+01:00 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Blanco A.; De Giovanni C.; Laddomada B.; Sciancalepore A.; Simeone R.; Devos K.M.; Gale M.D. (literal)
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- http://www.scopus.com/inward/record.url?eid=2-s2.0-0030498530&partnerID=q2rCbXpz (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Institute of Plant Breeding, University of Bari, Via Amendola 165/A, I-70126 Bari, Italy; Cambridge Laboratory, Colney Lane, Norwich NR4 7UJ, United Kingdom (literal)
- Titolo
- Quantitative trait loci influencing grain protein content in tetraploid wheats (literal)
- Abstract
- Seed storage protein content of durum wheat {Triticum turgidum var.
durum) has an important effect on nutritional value and pasta-making
characteristics. The objective of this study was to determine by association
with genetic markers the number, chromosomal location, and
magnitude of effect of quantitative trait loci (QTLs) controUing protein
concentration in kernels. A set of 65 recombinant inhred lines (RIs)
was developed by single seed descent from a cross between cultivated
durum wheat cv. 'Messapia' (low protein content) and accession
MG4343 of the wild tetraploid wheat var. dicoccoides (high protein
content). This population was characterized for eight morphological,
six storage protein, one isozyme and 124 RFLP loci. Field trials were
conducted in one location in 1993 and two locations in 1994. QTLs
were mapped by regression analysis on each marker locus for each
location and for the average across environments. A total of six putative
QTLs were located on chromosome arms 4BS, 5AL, 6AS, 6BS and 7BS.
The number and size of QTLs detected varied across environments. The
marker with the highest r value per QTL in each environment and
across environments was chosen for a multiple linear regression analysis,
which explained 49.2- 56.4% of the phenotypic variation for protein
content. Only some of the markers were found to be negatively associated
with plant grain yield and/or seed weight in one or two of the
environments. (literal)
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