Repo Dosen ULM
The qTSN Positive Effect on Panicle and Flag Leaf Size of Rice is Associated with an Early Down-Regulation of Tillering
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| dc.contributor.author | Adriani, Dewi Erika | |
| dc.contributor.author | Lafarge, Tanguy | |
| dc.contributor.author | Dardou, Audrey | |
| dc.contributor.author | Fabro, Aubrey | |
| dc.contributor.author | Clement-Vidal, Anne | |
| dc.contributor.author | Yahya, Sudirman | |
| dc.contributor.author | Dingkuhn, Michael | |
| dc.contributor.author | Luquet, Delphine | |
| dc.date.accessioned | 2020-08-11T03:11:16Z | |
| dc.date.available | 2020-08-11T03:11:16Z | |
| dc.date.issued | 2016-01 | |
| dc.identifier.citation | Metrics1664-462X | en_US |
| dc.identifier.issn | 1664-462X | |
| dc.identifier.uri | https://repo-dosen.ulm.ac.id//handle/123456789/17439 | |
| dc.description.abstract | TheqTSN4wasidentifiedasriceQTL(QuantitativeTraitsLocus)increasingtotalspikeletnumberperpanicleandflagleafareabutpotentiallyreducingpaniclenumberdependingontheenvironment.Sofar,thistrade-offwasmainlyobservedatgrainmaturityandnotspecificallystudiedindetails,limitingtheapprehensionoftheagronomicinterestofqTSN4.ThisstudyaimedtounderstandtheeffectofqTSN4andoftheenvironmentonpaniclesizing,itstrade-offwithpaniclenumber,andfinallyplantgrainproduction.ItcomparedtwohighyieldinggenotypestotheirNearIsogenicLines(NIL)carryingeitherQTLqTSN4orqTSN12,twodistinctQTLscontributingtotheenlargedpaniclesize,thereafterdesignatedasqTSN.TraitsdescribingCsink(organappearancerate,size,biomass)andsource(leafarea,photosynthesis,sugaravailability)weredynamicallycharacterizedalongplantand/orpanicledevelopmentwithintwotrials(greenhouse,field),eachcomparingtwotreatmentscontrastingforplantaccesstolight(withorwithoutshading,highorlowplantingdensities).ThepositiveeffectofqTSNonpaniclesizeandflagleafareaofthemaintillerwasconfirmed.Moreprecisely,itcouldbeshownthatqTSNincreasedleafareaandinternodecross-section,andinsomecasesofthephotosyntheticrateandstarchreserves,ofthetop3–4phytomersofthemaintiller.Thiswasaccompaniedbyanearliertilleringcessation,thatcoincidedwiththeinitiationofthesephytomers,andanenhancedpaniclesizeonthemaintiller.PlantleafareaatfloweringwasnotaffectedbyqTSNbutfertiletillernumberwasreducedtoanextentthatdependedontheenvironment.Accordingly,plantgrainproductionwasenhancedbyqTSNonlyundershadinginthegreenhouseexperiment,wherepaniclenumberwasnotaffectedandphotosynthesisandstarchstorageininternodeswasenhanced.TheeffectofqTSNonricephenotypewasthusexpressedbeforepanicleinitiation(PI).Whetherearlytilleringreductionororganoversizingatmeristemlevelisaffectedfirstcannotbeentirelyunraveled.FurtherstudiesareneededtobetterunderstandanysignalinvolvedinthisearlyregulationandtheqTSN×Environmentinteractionsunderlyingitsagronomicinterest. | en_US |
| dc.description.sponsorship | Dikti, Agreenium | en_US |
| dc.language.iso | en_US | en_US |
| dc.publisher | Frontiers | en_US |
| dc.subject | Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING | en_US |
| dc.title | The qTSN Positive Effect on Panicle and Flag Leaf Size of Rice is Associated with an Early Down-Regulation of Tillering | en_US |
| dc.type | Article | en_US |
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