A novel allele of monoecious (m) locus is responsible for elongated fruit shape and perfect flowers in cucumber (Cucumis sativus L.)

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Junyi TanZheng Li

Abstract

A 14 bp deletion in CsACS2 gene encoding a truncated loss-of-function protein is responsible for elongated fruit shape and perfect flowers in cucumber. In cucumber (Cucumis sativus L.), sex expression and fruit shape are important components of biological and marketable yield. The association of fruit shape and sex expression is a very interesting phenomenon. The sex determination is controlled primarily by the F (female) and M (monoecy) loci. Homozygous recessive mm plants bear bisexual (perfect) flowers, and the fruits are often round shaped. CsACS2 encoding the 1-aminocyclopropane-1-carboxylic acid synthase has been shown to be the candidate gene for the m locus. We recently identified an andromonoecious cucumber line H38 that has bisexual flowers but elongated fruits. To rapidly clone this monoecious gene in H38, we developed a tri-parent mapping strategy, which took advantage of the high-density Gy14 × 9930 cucumber genetic map and the powder of bulk segregant analysis. Microsatellite markers from the Gy14 × 9930 map were used to screen two pairs of unisexual and bisexual bulks constructed from H38 × Gy14 and H38 × 9930 F2 populations. Polymorphic markers were identified and used to quickly develop a framework map and plac...Continue Reading

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Citations

May 19, 2017·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Shanshan HouZheng Li
Dec 5, 2016·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Yupeng PanZhihui Cheng
Sep 12, 2018·Journal of Experimental Botany·Huanhuan NiuZheng Li
Feb 18, 2016·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Sen LiYiqun Weng
Mar 5, 2016·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Hanqiang LiuZhihui Cheng
Nov 27, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Yupeng PanYiqun Weng
Sep 26, 2020·Frontiers in Plant Science·Encarnación AguadoManuel Jamilena
Apr 20, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Yupeng PanYiqun Weng
Oct 28, 2019·Frontiers in Plant Science·Dandan LiZheng Li
Apr 26, 2017·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Yupeng PanYiqun Weng
May 28, 2021·The Plant Journal : for Cell and Molecular Biology·Pei XuGuojing Li

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