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| Content Provider | Springer Nature Link |
|---|---|
| Author | Qin, Yang Kim, Suk Man Zhao, Xinhua Jia, Baoyan Lee, Hyun Suk Kim, Kyung Min Eun, Moo Young Jin, Il Doo Sohn, Jae Keun |
| Copyright Year | 2010 |
| Abstract | Seed shattering is an important factor causing loss of grain yield before and during rice harvest. In the present study, the quantitative trait loci regarding shattering scale, breaking tensile strength (BTS) and abscission layer (AL), the parameters evaluating seed shattering habit by hand gripping, a digital force gauge and observation on AL, respectively, were identified by using an doubled haploid line (DHL) population from a cross between a loose-shattering type Tongil variety, ‘Samgang’, and a moderately difficult shattering japonica variety, ‘Nagdong’. Eight QTLs consisted in four QTLs for shattering scale, two QTLs for AL, each one QTL for pulling and bending strength were detected on six chromosomes, respectively. Among them, Qss1 with flanking markers RM6696 and RM476 explained 31% of phenotype variation in shattering scale. Furthermore, two new QTLs controlling shattering habit, Qss5-2 and Qal5-1, were located on chromosome 5 at the interval 5028–5037 and 5021-RM289. They explained 10% and 12% of phenotype variations, respectively. A total of eleven digenic epistatic loci were identified for four parameters. The identification of QTLs affecting seed shattering habits is favorable to thoroughly dissect the genetic mechanism of the shattering habit and to apply for marker-assisted selection in rice breeding system of specific regions. |
| Starting Page | 173 |
| Ending Page | 180 |
| Page Count | 8 |
| File Format | |
| ISSN | 19769571 |
| Journal | Genes & Genomics |
| Volume Number | 32 |
| Issue Number | 2 |
| Language | English |
| Publisher | The Genetics Society of Korea |
| Publisher Date | 2010-04-30 |
| Publisher Place | Heidelberg |
| Access Restriction | Subscribed |
| Subject Keyword | Rice Shattering scale Pulling and bending strength Abscission layer QTLs Human Genetics Animal Genetics and Genomics Plant Genetics & Genomics Microbial Genetics and Genomics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Biochemistry Molecular Biology |
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