Fine genetic mapping of cp: a recessive gene for compact (dwarf) plant architecture in cucumber, Cucumis sativus L.

Li, Yuhong; Yang, Luming; Pathak, Mamta; Li, Dawei; He, Xiaoming; Weng, Yiqun

doi:10.1007/s00122-011-1640-6

Cited by 105 publications

(65 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first high-density cucumber genetic linkage map was constructed using data from the cucumber genome (Ren et al, 2009), and many molecular markers (such as ll,de,D,ss,u,bi,Ccu,and Tu) were found to be closely linked to genes governing important agronomic traits in cucumber (Yuan et al, 2008;Huang et al, 2009;Weng, 2010;Zhang et al, 2010a,b;Li et al, 2011). Complete genome genetic linkage maps containing more than 3.6 million loci have been developed by deep re-sequencing of 115 cucumber varieties (Qi et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Genetic analysis of molecular markers for propamocarb residue in Cucumis sativus using quantitative trait locus mapping

Xin

Wang

et al. 2016

Genet. Mol. Res.

View full text Add to dashboard Cite

ABSTRACT. The use of pesticides to protect plants against harmful organisms, such as pathogenic microorganisms, is one of the most effective ways to improve agricultural production. However, the continuous use of pesticides might present a risk to human health, animals, and the environment. In this study, two cucumber (Cucumis sativus) varieties containing different levels of pesticide residues, D9320 and D0351, were selected to establish an F 2 population. A genetic model and genetic linkage map were constructed. The results showed that the heredity of pesticide residues was dominated by an additive effect and was significantly influenced by non-additive factors in cucumber. QCp1 was detected as a quantitative trait locus (QTL) that might be involved in regulating the levels of pesticide residue in 2 M. Xin et al. Genetics and Molecular Research 15 (4): gmr15048776 cucumber. Moreover, the cucumber genetic map was compared with the LG6 map, and the results indicated that this QTL was closely related to the level of pesticide residue in cucumber.

show abstract

Section: Discussionmentioning

confidence: 99%

Genetic analysis of molecular markers for propamocarb residue in Cucumis sativus using quantitative trait locus mapping

Xin

Wang

et al. 2016

Genet. Mol. Res.

View full text Add to dashboard Cite

show abstract

“…Overexpression of CKX genes, causing a decrease in cytokinin levels, has been associated with inhibited shoot development and enhanced root development (Ha et al 2012). Sequence analysis by Li et al (2011) identified a 3 bp deletion in the coding region of the CKX7 gene in PI308915 relative to three accessions with standard stem length, prompting the suggestion that CKX7 is a candidate gene for the compact phenotype. Sequence comparisons with PI308916 have not yet been made for the other candidate genes in the cp region.…”

Section: Genetic Basis For the Compact Traitmentioning

confidence: 98%

“…Recent QTL analysis were performed by Li et al (2011) to locate the cp gene from PI308915, an accession with a similar phenotype to PI308916, also collected from Russia. The cp gene in PI308915 was localized to a narrow region of the long arm of cucumber chromosome 4 .…”

Section: Genetic Basis For the Compact Traitmentioning

confidence: 99%

Modified plant architecture to enhance crop disease control: genetic control and possible value of upright fruit position in cucumber

et al. 2012

View full text Add to dashboard Cite

Plant architectural features can facilitate disease control by creating unfavourable environments for pathogen growth or limiting pathogen contact with the host. In the case of Phytophthora capsici infection of cucumber (Cucumis sativus), the susceptible fruit typically lie in contact with soil under warm, moist conditions of a full canopy, an ideal location for exposure to inoculum and disease development. We have shown that increased row spacing, trellising and architectural variants that allow for more open canopies, such as shorter vines, reduced branching, or smaller leaves, can modify microclimate as assessed by temperature at the location of developing fruits. However, only trellising reduced infection rates (<3 % infection vs. 22 % for control). A cucumber accession PI308916, with extremely short internodes and resulting upright position of young fruit, also exhibited reduced disease. Fruit of PI308916 were susceptible when inoculated with P. capsici, indicating that reduced infection likely resulted from decreased soil contact. The compact trait is inherited as a single recessive gene, cp. Like many architectural traits, cp may be pleiotropic; PI308916-derived breeding lines were reported to have poor seedling emergence. PI308916 exhibited inconsistent apical hook formation that cosegregated with short internodes in F 2 and backcross generations, and disorganized internodal cortical cell arrangement. The combined phenotypes suggest either pleiotropy or very tight linkage of genes affecting hormone balance or cell division. The narrow chromosome region recently defined by QTL analysis includes candidate gene homologs of meristem related genes modulating cell division or spacing of lateral shoot organs and genes associated with brassinosteroid signaling or cytokinin content.

show abstract

“…CC3, SWCC8, and derived RILs were originally developed by Nanjing Agricultural University, China. Both CC3 (aka, Beijingjietou, north China fresh market type) and WI7200 (derived from PI 249561; Li et al, 2011) were cultivated cucumbers. SWCC8 and WI7167 are semiwild XIS cucumbers with short hypocotyls conferred by the sh1 allele.…”

Section: Plant Materialsmentioning

confidence: 99%

“…DNA extraction, PCR amplification, marker analysis, and gel electrophoresis followed Li et al (2011). Linkage analysis of the sh1 locus with molecular markers was performed with the Kosambi mapping function using JoinMap 4.0 with the threshold LOD score of 4.0.…”

Section: Fine Genetic Mapping Of Sh1 Locusmentioning

confidence: 99%

SHORT HYPOCOTYL 1 Encodes a SMARCA3-like Chromatin Remodeling Factor Regulating Elongation

Bo¹,

Wang²,

Pan³

et al. 2016

Plant Physiol.

Self Cite

View full text Add to dashboard Cite

(Y.We.).In Arabidopsis (Arabidopsis thaliana), the UVR8-mediated signaling pathway is employed to attain UVB protection and acclimation to deal with low-dosage UVB (LDUVB)-induced stresses. Here, we identified SHORT HYPOCOTYL1 (SH1) in cucumber (Cucumis sativus), which regulates LDUVB-dependent hypocotyl elongation by modulating the UVR8 signaling pathway. We showed that hypocotyl elongation in cucumbers carrying the recessive sh1 allele was LDUVB insensitive and that Sh1 encoded a human SMARCA3-like chromatin remodeling factor. The allele frequency and distribution pattern at this locus among natural populations supported the wild cucumber origin of sh1 for local adaptation, which was under selection during domestication. The cultivated cucumber carries predominantly the Sh1 allele; the sh1 allele is nearly fixed in the semiwild Xishuangbanna cucumber, and the wild cucumber population is largely at Hardy-Weinberg equilibrium for the two alleles. The SH1 protein sequence was highly conserved among eukaryotic organisms, but its regulation of hypocotyl elongation in cucumber seems to be a novel function. While Sh1 expression was inhibited by LDUVB, its transcript abundance was highly correlated with hypocotyl elongation rate and the expression level of cell-elongationrelated genes. Expression profiling of key regulators in the UVR8 signaling pathway revealed significant differential expression of CsHY5 between two near isogenic lines of Sh1. Sh1 and CsHY5 acted antagonistically at transcriptional level. A working model was proposed in which Sh1 regulates LDUVB-dependent hypocotyl elongation in cucumber through changing the chromatin states and thus the accessibility of CsHY5 in the UVR8 signaling pathway to promoters of LDUVB-responsive genes for hypocotyl elongation.The hypocotyl of dicotyledonous plants is the embryonic stem connecting the two embryonic leaves (cotyledons) and the primary root (radicle). The hypocotyl, which has a relatively simple architecture (Scheres et al., 1994), is a very plastic organ, strongly influenced by both external and internal cues known to regulate cell elongation, such as light, gravity, temperature, and hormones. In Arabidopsis (Arabidopsis thaliana), after germination, hypocotyl growth relies mainly on longitudinal cell elongation rather than cell divisions; its length can increase by more than 10-fold (Gendreau et al., 1997). The morphological simplicity, growth behavior, availability of mutants, and ease of phenotyping of mutants of this organ makes it a model for understanding the mechanism of cell elongation and various biological events that participate in its control (Gendreau et al., 1997;Vandenbussche et al., 2005;Boron and Vissenberg, 2014).In nature, the development of germinated seeds starts under soil cover; the seedling undergoing skotomorphogenic growth has a very long hypocotyl, which allows quick attaining of light and de-etiolation after

show abstract

Fine genetic mapping of cp: a recessive gene for compact (dwarf) plant architecture in cucumber, Cucumis sativus L.

Cited by 105 publications

References 34 publications

Genetic analysis of molecular markers for propamocarb residue in Cucumis sativus using quantitative trait locus mapping

Genetic analysis of molecular markers for propamocarb residue in Cucumis sativus using quantitative trait locus mapping

Modified plant architecture to enhance crop disease control: genetic control and possible value of upright fruit position in cucumber

SHORT HYPOCOTYL 1 Encodes a SMARCA3-like Chromatin Remodeling Factor Regulating Elongation

Contact Info

Product

Resources

About