Linkage of genes for anthocyanin pigmentation in rice (Oryza sativa L.)

Hadagal, B.N.; Manjunath, A.; Goud, J. V.

doi:10.1007/bf00038804

Cited by 12 publications

(6 citation statements)

References 7 publications

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“…Several studies on the genetic control of leaf sheath color have been conducted in rice, the purple leaf sheath has been studied by linkage analysis in different segregation populations, and several leaf sheath genes have been fine-mapped and cloned. The leaf sheath color was controlled by one gene [ 5 ], while two main-effect QTLs involved in epistasis were identified for the purple leaf sheath in the Zhenshan97 × IRAT109 RIL population [ 6 ]. A single dominant gene governing purple leaf sheaths (PSH) was delimitated to 23.5 kb on chromosome 1 [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Combined bulked segregant sequencing and traditional linkage analysis for identification of candidate gene for purple leaf sheath in maize

Zhang

et al. 2018

PLoS ONE

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Anthocyanin accumulation in various maize tissues plays important roles in plant growth and development. In addition, some color-related traits can be used as morphological markers in conventional maize breeding processes and purity identification of hybrid seeds. Here, we noticed that the leaf sheath color was controlled by a dominant gene, because purple (PSH) and green leaf sheaths (GSH) were separated at a ratio of 3:1 in an F2 population. To map the gene, an F2 and a recombinant inbred line (RIL) population were derived from a cross between inbred line T877 (PSH) and DH1M (GSH). The PSH locus was mapped to the genomic region within 128.8 to 138.4 Mb using a bulked segregant sequencing approach. This position was further validated by linkage mapping using 190 F2 plants with GSH. Subsequently, the PSH locus was fine-mapped into an interval of 304.2 kb. A maize gene, GRMZM5G822829, was identified in this region, encoding a bHLH transcription factor. The expression level of this gene in T877 was found to be 9-fold higher than that of DH1M. In conclusion, our results suggest that GRMZM5G822829 is the putative candidate gene conferring leaf sheath color in maize.

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Section: Introductionmentioning

confidence: 99%

Combined bulked segregant sequencing and traditional linkage analysis for identification of candidate gene for purple leaf sheath in maize

Zhang

et al. 2018

PLoS ONE

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“…In rice, purple leaf sheath (PSH) as well as purple apiculus and stigma is common in wild species and landraces; however, green leaf sheath (GSH) is prevalent in modern cultivars. One or two major QTLs were suggested to confer leaf sheath color, and two QTLs mapped on chromosomes 1 and 6 could explain more than 50 % of phenotypic variation (Hadagal et al 1980 ; Yue et al 2006 ). A purple leaf sheath gene, PSH1 (t), was narrowed down to an interval of 23.5 kb on chromosome 1 encompassing 6 candidate genes after high resolution of linkage mapping.…”

Section: Introductionmentioning

confidence: 99%

Genetic and Evolutionary Analysis of Purple Leaf Sheath in Rice

Chin

Wu²,

Hour

et al. 2016

Rice

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BackgroundAnthocyanin accumulates in many plant tissues or organs, in rice for example leading to red, purple red and purple phenotypes for protection from damage by biotic and abiotic stresses and for reproduction. Purple leaf, leaf sheath, stigma, pericarp, and apiculus are common in wild rice and landraces and occasionally found in modern cultivars. No gene directly conferring anthocyanin deposited in a purple leaf sheath has yet been isolated by using natural variants. An F2 population derived from ssp. japonica cv. Tainung 72 (TNG72) with purple leaf sheath (PSH) crossed with ssp. indica cv. Taichung Sen 17 (TCS17) with green leaf sheath (GSH) was utilized to isolate a gene conferring leaf sheath color.ResultsBy positional cloning, 10-and 3-bp deletions in the R2R3 Myb domain of OsC1 were uncovered in GSH varieties TCS17 and Nipponbare, respectively. Allelic diversity, rather than gene expression levels of OsC1, might be responsible for anthocyanin accumulation. Parsimony-based analysis of genetic diversity in 50 accessions, including cultivars, landraces, and A-genome wild rice, suggests that independent mutation occurred in Asian, African, South American, and Australian species, while O. meridionalis had a divergent sequence. OsC1 was thought of as a domestication related gene, with up to 90 % reduction of genetic diversity in GSH; however, no values from three tests showed significant differences from neutral expectations, implying that OsC1 had not been subjected to recent selection. Haplotype network analysis revealed that species from different continents formed unique haplotypes with no gene flow. Two major groups of haplotypes corresponding to 10-bp deletion and other sequences were formed in Asian rice, including O. rufipogon, O. nivara and O. sativa. Introgressions of OsC1 between subspecies through natural and artificial hybridization were not rare. Because artificial and natural selection imposed admixture on rice germplasm in Taiwan, the genealogy of OsC1 might not be congruent with the current distribution of alleles through lineage diversification.ConclusionOsC1 is responsible for purple leaf sheath, and much new information about OsC1 is provided e.g., new alleles, non-domestication syndrome, and incongruence of genealogy with geographic distribution.Electronic supplementary materialThe online version of this article (doi:10.1186/s12284-016-0080-y) contains supplementary material, which is available to authorized users.

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“…Although there has been no published systematic survey of species bearing leaves with red margins, they are evidently very common. Red margins are often used by taxonomists as a character for species identification (Bayly & Kellow, 2006;Versieux & Wanderley, 2007;Redden, 2008), and as a marker to study genetic linkages in crop species as diverse as maize (Flint-Garcia et al, 2005), banana (Jarret et al, 1993), lettuce (Sabharwal & Doležel, 1993), mustard (Nick et al, 1993) and rice (Hadagal et al, 1981). There are also numerous reports of anthocyanic leaf margins being induced in response to mineral nutrient deficiencies (Walker, 1956;Johanson & Walker, 1963;Nyborg & Hoyt, 1970;Haque & Walmsley, 1973;Balo et al, 1975;Hassouna, 1977;Raese, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…, 1993), lettuce (Sabharwal & Doležel, 1993), mustard (Nick et al. , 1993) and rice (Hadagal et al. , 1981).…”

Section: Introductionmentioning

confidence: 99%

Red leaf margins indicate increased polygodial content and function as visual signals to reduce herbivory in Pseudowintera colorata

et al. 2012

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Summary• Red-pigmented leaf margins are common, but their functional significance is unknown. We hypothesized that red leaf margins reduce leaf herbivory by signalling to herbivorous insects the presence of increased chemical defences.• Leaves were collected from a natural population of Pseudowintera colorata. Margin size, herbivory damage, anthocyanin content and concentrations of polygodial, a sesquiterpene dialdehyde with antifeedant properties, were quantified. Feeding trials involving larvae of Ctenopseustis obliquana, a generalist herbivore, were conducted on red-and green-margined P. colorata leaves in darkness, or under white, green or red light.• Leaves with wider red margins contained higher concentrations of polygodial and anthocyanins, and incurred less natural herbivory. In trials under white light, C. obliquana consumed disproportionately more green-than red-margined leaf laminae. Larvae exhibited no feeding preference when light was manipulated such that leaf colour discrimination was impaired.• Red leaf margins provide a reliable and effective visual signal of chemical defence in P. colorata. Ctenopseustis obliquana larvae perceive and respond to the colour of the leaf margins, rather than to olfactory signals. Our study provides direct experimental evidence for aposematic coloration in red leaves.

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Linkage of genes for anthocyanin pigmentation in rice (Oryza sativa L.)

Cited by 12 publications

References 7 publications

Combined bulked segregant sequencing and traditional linkage analysis for identification of candidate gene for purple leaf sheath in maize

Combined bulked segregant sequencing and traditional linkage analysis for identification of candidate gene for purple leaf sheath in maize

Genetic and Evolutionary Analysis of Purple Leaf Sheath in Rice

Red leaf margins indicate increased polygodial content and function as visual signals to reduce herbivory in Pseudowintera colorata

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