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Functional properties and expression quantitative trait loci for phosphate transporter GmPT1 in soybean
Author(s) -
SONG HAINA,
YIN ZHITONG,
CHAO MAONI,
NING LIHUA,
ZHANG DAN,
YU DEYUE
Publication year - 2014
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/pce.12170
Subject(s) - quantitative trait locus , trait , gene expression , gene , photosynthesis , limiting , biology , population , phosphate , yield (engineering) , transporter , quantum yield , genetics , chemistry , biochemistry , physics , mechanical engineering , demography , quantum mechanics , sociology , computer science , engineering , fluorescence , programming language , thermodynamics
In this paper, we analyzed the function and modulation of the soybean phosphate transporter gene GmPT 1 . Overexpression of GmPT 1 in tobacco showed that this gene played a role in P i remobilization. In a soybean RIL population, the expression level of GmPT 1 showed significantly positive correlations with seed yield, phosphorus‐use efficiency, photosynthetic rate (P N ) and the quantum yield of PSII primary photochemistry (Φ PSII ). Expression quantitative trait loci (e QTL ) mapping for GmPT 1 revealed one cis ‐e QTL and one trans ‐e QTL . These results suggest the possibility to improve soybean seed yields under P i‐limiting conditions by modulating GmPT 1 expression.