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Project Overview
| Project Name |
Bloom date traits-Abbott-2010 |
| Description |
Chilling requirement, together with heat requirement, determines the bloom date, which has an impact on the climatic distribution of the genotypes of tree species. The molecular basis of floral bud chilling requirement is poorly understood, despite its importance to the adaptation and production of fruit trees. In addition, the genetic nature of heat requirement and the genetic interrelationships among chilling requirement, heat requirement and bloom date remain unclear.
A peach (Prunus persica) F2 population of 378 genotypes developed from two genotypes with contrasting chilling requirements was used for linkage map construction and quantitative trait loci (QTL) mapping. The floral bud chilling and heat requirements of each genotype were evaluated over 2 yr and the bloom date was scored over 4 yr. |
| Detection type |
Composite interval mapping (Jansen & Stam, 1994; Zeng, 1994) was performed using PLABQTL version 1.2bic (Utz
& Melchinger, 2006), a QTL mapping software based on a multiple regression approach with flanking markers
described by Haley & Knott (1992). |
| Project type |
QTL |
| Crop |
peach |
Traits
This project contains 3 Traits:
Page 1
QTL
This project contains 83 QTL:
Page 1
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