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- Title
Development and characterization of a strawberry MAGIC population derived from crosses with six strawberry cultivars.
- Authors
Takuya Wada; Koichiro Oku; Soichiro Nagano; Sachiko Isobe; Hideyuki Suzuki; Miyuki Mori; Kinuko Takata; Chiharu Hirata; katsumi Shimomura; Masao Tsubone; Takao Katayama; Keita Hirashima; Yosuke Uchimura; Hidetoshi Ikegami; Takayuki Sueyoshi; Ko-ichi Obu; Tatsuya Hayashida; Yasushi Shibato
- Abstract
A strawberry Multi-parent Advanced Generation Intercrosses (MAGIC) population, derived from crosses using six strawberry cultivars was successfully developed. The population was composed of 338 individuals; genome conformation was evaluated by expressed sequence tag-derived simple short repeat (EST-SSR) markers. Cluster analysis and principal component analysis (PCA) based on EST-SSR marker polymorphisms revealed that the MAGIC population was a mosaic of the six founder cultivars and covered the genomic regions of the six founders evenly. Fruit quality related traits, including days to flowering (DTF), fruit weight (FW), fruit firmness (FF), fruit color (FC), soluble solid content (SC), and titratable acidity (TA), of the MAGIC population were evaluated over two years. All traits showed normal transgressive segregation beyond the founder cultivars and most traits, except for DTF, distributed normally. FC exhibited the highest correlation coefficient overall and was distributed normally regardless of differences in DTF, FW, FF, SC, and TA. These facts were supported by PCA using fruit quality related values as explanatory variables, suggesting that major genetic factors, which are not influenced by fluctuations in other fruit traits, could control the distribution of FC. This MAGIC population is a promising resource for genome-wide association studies and genomic selection for efficient strawberry breeding.
- Subjects
STRAWBERRY genetics; CULTIVARS; CLUSTER analysis (Statistics); FRUIT quality; STRAWBERRY quality
- Publication
Breeding Science, 2017, Vol 67, Issue 4, p370
- ISSN
1344-7610
- Publication type
Article
- DOI
10.1270/jsbbs.17009