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Quantitative trait loci for photosynthetic pigment concentration in a doubled-haploid population of pak choi (Brassica rapa ssp. chinensis var. communis Tsen et Lee)
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Wang, Q., Hou, X. L., Geng, J. F., Cheng, Y., Ban, Q. Y., Zou, J. W. and Barker, Guy C.. (2010) Quantitative trait loci for photosynthetic pigment concentration in a doubled-haploid population of pak choi (Brassica rapa ssp. chinensis var. communis Tsen et Lee). Journal of Horticultural Science & Biotechnology, Vol.85 (No.5). pp. 421-426. ISSN 1462-0316
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Abstract
Quantitative trait loci (QTL) mapping and marker development are essential steps in any molecular breeding programme. In this study, QTL for photosynthetic pigment concentration were identified using a doubled-haploid (DH) population of 112 lines derived from an F-1 hybrid of Pak Choi, 'Shuly', obtained from a cross between Brassica rapa lines SW-13 and SU-124 through microspore culture. QTL mapping was carried out using a modification to the map of 'Shulv. Alignment of the linkage groups was carried out with those of reference B. rapa maps, allowing the assignment of these groups as A01-A10. In total, 11 QTL were associated with photosynthetic pigment concentration and identified on linkage groups A05, A08, and A10. The maximum phenotypic variance for a single QTL was 38.0%. Markers closely linked to these QTL could assist in the development of Pak Choi cultivars with increased yield, due to having improved photosynthetic capabilities.
| Item Type: | Journal Article |
|---|---|
| Subjects: | S Agriculture > SB Plant culture |
| Divisions: | Faculty of Science > Life Sciences (2010- ) > Warwick HRI (2004-2010) |
| Journal or Publication Title: | Journal of Horticultural Science & Biotechnology |
| Publisher: | Headley Bros. Ltd. |
| ISSN: | 1462-0316 |
| Date: | September 2010 |
| Volume: | Vol.85 |
| Number: | No.5 |
| Number of Pages: | 6 |
| Page Range: | pp. 421-426 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| Funder: | National High Technology Research and Development Programme of China, State Natural Science Foundation, Jiangsu Natural Science Foundation |
| Grant number: | 2006AA10Z1C9, 30671420, BK2008035 |
| URI: | http://wrap.warwick.ac.uk/id/eprint/4848 |
Data sourced from Thomson Reuters' Web of Knowledge
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