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DOI:10.2135/cropsci2010.03.0131
Web URL(s):https://acsess.onlinelibrary.wiley.com/doi/10.2135/cropsci2010.03.0131
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Publication Type:
i
Refereed
Author(s):Kobayashi, Sohei; Humphreys, Mervyn O.; Tase, Kazuhiro; Sanada, Yasuharu; Yamada, Toshihiko
Author Affiliation:Kobayashi, Tase and Sanada: National Agricultural Research Center for Hokkaido Region; Yamada: Field Science Center for Northern Biosphere, Hokkaido Univ., Sapporo, Japan; Humphreys: Institute of Biological, Environmental and Rural Sciences, Aberystwyth Univ., Plas Gogerddan, Aberystwyth, Ceredigion, UK;
Title:Molecular marker dissection of ryegrass plant development and its response to growth environments and foliage cuts
Section:Crop breeding and genetics
Other records with the "Crop breeding and genetics" Section
Source:Crop Science. Vol. 51, No. 2, March 2011, p. 600-611.
Publishing Information:Madison, WI: Crop Science Society of America
# of Pages:12
Keywords:TIC Keywords: Clonal variation; Growth factors; Loci; Lolium; Molecular markers; Multiple trait selection; Plant development
Abstract/Contents:"For perennial forage grasses, tillering and shoot elongation are important developmental events to determine grassland production. To thoroughly identify and characterize quantitative trait locus (QTL) regions controlling the events, a perennial ryegrass (Lolium perenne L.) mapping population comprising 188 F2 individuals was evaluated for tiller number (TN), plant length (PL), and leaf length (LL) over 12 cuts in replicated field and pot experiments in Sapporo, Japan, during 2 yr. Quantitative trait loci were repeatedly detected in 16 genomic regions. Based on the QTL, 10 regions affected both shoot elongation (PL and LL) and tillering (TN), whereas only six regions had a single effect on either event. Five QTL regions mapped on linkage groups 1, 2, 5, and 6, explaining at maximum 34 to 56% phenotypic variance, likely contain key genes for plant development. Profiles (e.g., direction and magnitude) of QTL effects differed greatly among most regions, indicating a large diversity among the genes involved. Statistical tests revealed significant interaction effects of genotype with growth condition and cut for all QTL regions. The QTL positions were compared with those reported for ryegrass and rice, suggesting the presence of genes identical to the current population and semiwild perennial forage grasses. The current QTL analysis indicated that the control of ryegrass plant development involves diverse, unique genes whose effects are enhanced or suppressed by growth environment and foliage cutting."
Language:English
References:49
Note:Figures
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kobayashi, S., M. O. Humphreys, K. Tase, Y. Sanada, and T. Yamada. 2011. Molecular marker dissection of ryegrass plant development and its response to growth environments and foliage cuts. Crop Sci. 51(2):p. 600-611.
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DOI: 10.2135/cropsci2010.03.0131
Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.2135/cropsci2010.03.0131
    Last checked: 03/24/2024
    Access conditions: Item is within a limited-access website
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2135/cropsci2010.03.0131
    Last checked: 03/24/2024
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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