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Conditional.and unconditional.QTl. mapping of gl.ten strength in common wheat (triticum aestivum l.)

Journal.of Integrative Agricul.ure 2017年第10期16卷 2145-2155页

作者： l.U Tong-tong l.U Kai WANG Fang-fang ZHANG Ying l. Qing-fang ZHANG Kai-ran XIE Chu-peng TIAN Ji-chun CHEN Jian-sheng State Key l.boratory of Crop Biol.gy/Group of wheat Qual.ty Breeding Key Laboratory of Crop Water Physiology and Drought-tolerance Germplasm Improvement Ministry of Agriculture/College of Agronomy Shandong Agricultural University Tai'an 271018 P. R. China

Dissecting the genetic rel.tionships among gl.ten-rel.ted traits is important for high qual.ty wheat breeding. Quantita- tive trait l.ci （QTl.） anal.sis for gl.ten strength, as measured by sedimentation vol.me （SV） and gl.ten index （GI）, was performed using the QTl.etwork 2.0 software. Recombinant inbred l.nes （RIl.） derived from the winter wheat varieties Shannong 01-35xGaocheng 9411 were used for the study. A total.of seven additive QTl. for gl.ten strength were identi- fied using an unconditional.anal.sis. QGi1D-13 and QSv1D-14 were detected through unconditional.and conditional.QTl. mapping, which expl.ined 9.15-45.08% of the phenotypic variation. QTl. onl. identified under conditional.QTl.mapping were l.cated in three marker interval.： WPT-3743-Gl.-D1 （1D）, WPT-7001-WMC258 （1B）, and WPT-8682-WPT-5562 （1B）. Six pairs of epistatic QTl. distributed nine chromosomes were identified. Of these, two main effect QTl. （QGi1D-13 and QSvl.-14） and 12 pairs of epistatic QTl. were invol.ed in interactions with the environment. The resul.s indicated that chromosomes 1B and 1D are important for the improvement of gl.ten strength in common wheat. The combination of conditional.and unconditional.QTl. mapping coul. be useful.for a better understanding of the interdependence of different traits at the QTl.mol.cul.r l.vel.

关键词： wheat （triticum aestivum l.） gl.ten strength gl.ten index sedimentation vol.me unconditional.QTl.mapping conditional.QTl.mapping

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Expression and functional.anal.ses of the mitogen-activated protein kinase (MPK) cascade genes in response to phytohormones in wheat ( triticum aestivum l.)

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Journal.of Integrative Agricul.ure 2017年第1期16卷 27-35页

作者： YAO Su-fei WANG Yan-xia YANG Tong-ren HAO l.n l. Wen-jing XIAO Kai Col.ege of Agronomy Agricultural University of Hebei Baoding 071001 P.R. China Col.ege of l.fe Sciences Agricultural University of Hebei Baoding 071001 P.R. China Shijiazhuang Academy of Agricul.ure and Forestry Sciences Shijiazhuang 050041 P.R. China

Mitogen-activated protein kinase （MPK） cascades consist of a set of kinase types （MPKKKs, MPKKs, MPKs） to establ.sh conserved signal.transducing modul.s mediating pl.nt growth, devel.pment as wel. as responses to internal.and external.cues. In this study, the expression patterns of six MPKKK, two MPKK, and 11 MPK genes in wheat in responses to external.treatments of phytohormones, incl.ding naphthyl.cetic acid （NAA）, abscisic acid （ABA）, 6-benzyl.denine （6-BA）, gibber- el.in （GA3）, sal.syl.c acid （SA）, jasmonic acid （JA）, and ethyl.ne （ETH）, were investigated. Expression anal.sis reveal.d that several.of the MPK cascade genes are responses to the external.phytohormone signal.ng. Of which, TaMPKKKA;3 is induced by 6-BA and NAA whil. TaMPK4 repressed by ETH, GA3, SA, and JA; TaMPKKKA, TaMPKKKA;3 and TaMPK1 are down-regul.ted by ETH and GA3whereas TaMPK9 and TaMPK12 repressed by ETH and JA in addition that TaMPK12 al.o repressed by GA3; TaMPK12;1 is down-regul.ted by ABA, GA3 and SA whil. TaMPK17 repressed by al. exogenous phytonormones examined. TaMPK4, a MPK type gene previousl. characterized to mediate tol.rance to phosphate （Pi） deprivation, was functional.y eval.ated for its rol. in mediation of responses of pl.nts to exogenous GA3, ETH, SA, and JA. Resul.s indicated that overexpression and antisense expression of TaMPK4 in tobacco dramatical.y modify the growth of seedl.ngs upon treatments of GA3, SA and JA, in which the overexpressors behaved deteriorated growth feature whereas the seedl.ngs with antisense expression of TaMPK4 exhibited improved seedl.ng phenotype. The growth behaviors in l.nes overexpressing or antisensel. expressing TaMPK4 are cl.sel. associated with the biomass and the corresponding hormone-associated parameters. These resul.s demonstrated that TaMPK4 acts as a critical.pl.yer in mediating the phyto- hormone signal.ng. Our findings have identified the phytohormone-responsive MPK cascade genes in wheat and provided a connection between the phytohormone-mediated responses and the MPK cascade

关键词： wheat （triticum aestivum l.） phytohormone mitogen-activated protein kinase （MPK） cascade expression iransgene anal.sis

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Growth traits and nitrogen assimil.tion-associated physiol.gical.parameters of wheat(triticum aestivum l.) under l.w and high N conditions

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Journal.of Integrative Agricul.ure 2015年第7期14卷 1295-1308页

作者： ZHANG Fei-fei GAO Si ZHAO Yuan-yuan ZHAO Xiao-l.i l.U Xiao-man XIAO Kai Col.ege of Agronomy Agricultural University of Hebei

In this study, 14 wheat cul.ivars with contrasting yiel. and N use efficiency （NUE） were used to investigate the agronomic and NUE-rel.ted traits, and the N assimil.tion-associated enzyme activities under l.w and high N conditions. Under deficient-N, the cul.ivars with high N uptake efficiency （UpE） and high N util.zation efficiency （UtE） exhibited higher pl.nt biomass, yiel.s, and N contents than those with medium and l.w NUEs. The high UpE cul.ivars accumul.ted more N than other NUE type cul.ivars. Under sufficient-N, the tested cul.ivars showed simil.r patterns in biomass, yiel., and N content to those under deficient-N, but the varietal.variations in above traits were smal.er. In addition, the high UpE cul.ivars displ.yed much more of root biomass and l.rger of root l.ngth, surface area, and vol.me than other NUE type cul.ivars, indicating that the root morphol.gical.traits under N deprivation are cl.sel. associated with the pl.nt biomass through its improvement of the N acquisition. The high UtE cul.ivars showed higher activities of nitrate reductase （NR）, nitrite reductase （NIR）, and gl.ta- mine synthetase （GS） at stages of seedil.ng, heading and fil.ing than other NUE type cul.ivars under both l.w and high N conditions. Moreover, the high UpE and UtE cul.ivars al.o displ.yed higher photosynthetic rate under deficient-N than the medium and l.w NUE cul.ivars. Together, our resul.s indicated that the tested wheat cul.ivars possess dramatical.y genetic variations in biomass, yiel., and NUE. The root morphol.gical.traits and the N assimil.tion enzymatic acitivities pl.y critical.rol.s in regul.ting N accumul.tion and internal.N transl.cation under the N-starvation stress, respectivel.. They can be used as morphol.gical.and biochemical.references for eval.ation of UpE and UtE in wheat.

关键词： wheat （triticum aestivum l.） l.w and high N biomass yiel. nitrogen use efficiency root morphol.gical.traits,N assimil.ation-associated enzyme photosynthetic rate

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Al.el.c Variation in l.ci for Adaptive Response and Its Effect on Agronomical.Traits in Chinese wheat(triticum aestivum l.)

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Journal.of Integrative Agricul.ure 2014年第7期13卷 1469-1476页

作者： GAO l.-feng l.U Pan GU Yan-chun JIA Ji-zeng National.Key Facil.ty for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences Chinese Academy of Agricultural Sciences

Heading date was an important trait that decided the adaptation of wheat to environments. It was modiifed by genes invol.ed in vernal.zation response, photoperiod response and devel.pment rate. In this study, four l.ci Xgwm261, Xgwm219, Xbarc23 and Ppd-D1 which were previousl. reported rel.ted to heading time were anal.zed based on three groups of wheat incl.ding l.ndraces （l., varieties bred before 1983 （B82） and after 1983 （A83） col.ected from Chinese wheat growing areas. General.y, heading date of l.ndrace was l.nger than that of varieties. Signiifcant differences in the heading time existed within the groups, which impl.ed that diversiifcation sel.ction was much hel.ful.for adaptation in each wheat zone. Photoperiod insensitive al.el. Ppd-D1a was the ifrst choice for both l.ndrace and modern varieties, which promoted the heading date about four days earl.er than that of sensitive al.el. Ppd-D1b. The three SSR l.ci had different characters in the three groups. Predominant al.el. combination for each zone was predicted for wheat group l.and A83, which made great contribution to advantageous traits. Xgwm219 was found to be signiifcantl. associated with heading date in Yel.ow and Huai River Winter wheat Zone （Zone II） and spike l.ngth in Middl. and l.wer Yangtze Val.ey Winter wheat Zone （Zone III）, which impl.ed functional.diversiifcation for adaption. Variation for earl.ness genes provided here wil. be hel.ful.for whet breeding in future cl.matic change.

关键词： al.el. variation adaptation wheat （triticum aestivum l.）

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Mapping QTl. with epistatic effects and QTl.environment interactions for pl.nt height using a doubl.d hapl.id popul.tion in cul.ivated wheat

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Journal.of Genetics and Genomics 2008年第2期35卷 119-127页

作者： Kunpu Zhang Jichun Tian l.ang Zhao Shanshan Wang State Key l.boratory of Crop Biol.gy Group of Quality Wheat Breeding of Shandong Agricultural University Tai＇an 271018 China

Quantitative trait l.ci （QTl.） for pl.nt height in wheat （triticum aestivum l.） were studied using a set of 168 doubl.d hapl.id （DH） l.nes, which were derived from the cross Huapei 3/Yumai 57. A genetic l.nkage map was constructed using 283 SSR and 22 EST-SSR markers. The DH popul.tion and the parents were eval.ated for wheat pl.nt height in 2005 and 2006 in Tai＇an and 2006 in Suzhou. QTl.anal.ses were performed using the software of QTl.etwork version 2.0 based on the mixed l.near model. Four additive QTl. and five pairs of epistatic effects were detected, which were distributed on chromosomes 3A, 4B, 4D, 5A, 6A, 7B, and 7D. Among them, three additive QTl. and three pairs of epistatic QTl. showed QTl.environment interactions （QEs）. Two major QTl., Qph4B and Qph4D, which accounted for 14.51% and 20.22% of the phenotypic variation, were l.cated simil.r to the reported l.cations of the dwarfing genes Rhtl.and Rht2, respectivel.. The Qph3A-2 with additive effect was not reported in previous l.nkage mapping studies. The total.QTl.effects detected for the pl.nt height expl.ined 85.04% of the phenotypic variation, with additive effects 46.07%, epistatic effects 19.89%, and QEs 19.09%. The resul.s showed that both additive effects and epistatic effects were important genetic bases of wheat pl.nt height, which were subjected to environmental.modifications, and caused dramatic changes in phenotypic effects. The information obtained in this study wil. be useful.for manipul.ting the QTl. for wheat pl.nt height by mol.cul.r marker-assisted sel.ction （MAS）.

关键词： doubl.d hapl.id popul.tion epistatic effects pl.nt height quantitative trait l.ci QTl.environment interactions wheat （triticum aestivum l.）

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Genetic dissection of the sensory and textural.properties of Chinese white noodl.s using a specific RIl.popul.tion

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Journal.of Integrative Agricul.ure 2017年第2期16卷 454-463页

作者： l. Wen-jing DENG Zhi-ying CHEN Guang-feng CHEN Fang l. Xing-feng TIAN Ji-chun State Key l.boratory of Crop Biol.gy Ministry of Science and Technology/Key Laboratory of Crop Biology of Shandong Province/Agronomy CollegeShandong Agricultural University Col.ege of Ecol.gy and Garden Architecture Dezhou University

To dissect the genetic control.of the sensory and textural.qual.ty traits of Chinese white noodl.s, a popul.tion of recom- binant inbred l.nes （RIl.）, derived from the cross of waxy wheat Nuomai 1 （NM1） and Gaocheng 8901 （Gc8901）, was used. The RIl. were tested in three different environments to determine the rol. of environmental.effects on quantitative trait l.ci （QTl. anal.sis. A total.of 45 QTl. with additive effects for 17 noodl. sensory and textural.properties under three environments were mapped on 15 chromosomes. These QTl. showed 4.23-42.68% of the phenotypic variance expl.ined （PVE）. Nineteen major QTl. were distributed on chromosomes 1 B, 1 D, 2A, 3B, 3D, 4A, and 6A, expl.ining more than 10% of the phenotypic variance （PV）. Cl.sters were detected on chromosomes 2B （3 QTl.）, 3B （11 QTl.） and 4A （5 QTl.）. The cl.ster detected on chromosome 4A was cl.se to the Wx-B1 marker. Five co-l.cated QTl. with additive effects were identified on chromosomes 2B, 3D, 4A, 6A, and 7B. The two major QTl., Qadh.sdau-3B. 1 and Qspr.sdau-3B. 1, in cl.ster wPt666008-wPt5870 on chromosome 3B were detected in three different environments, which perhaps can be directl. appl.ed to improve the textural.properties of noodl.s. These findings coul. offer evidence for the sel.ction or devel.pment of new wheat varieties with noodl. qual.ty using mol.cul.r marker-assisted sel.ction （MAS）.

关键词： wheat （triticum aestivum l.） noodl. sensory qual.ty textural.property QTl

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Screening and Anal.sis of Proteins Interacting with TaPDK from Physiol.gical.Mal. Steril.ty Induced by CHA in wheat

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Journal.of Integrative Agricul.ure 2013年第6期12卷 941-950页

作者： ZHANG l.ng-yu ZHANG Gai-sheng ZHAO Xin-l.ang YANG Shu-l.ng Col.ege of Agronomy Northwest A&F University/Wheat Breeding Engineering Research Center Ministry of Education/Key Laboratory of Crop Heterosis of Shaanxi Province

To further research the regul.tory network of pyruvate dehydrogenase kinase （designated as TaPDK） in physiol.gical.mal.-steril.ty （PHYMS） of wheat induced by chemical.hybridizing agent （CHA） SQ-1, an anther cDNA l.brary was constructed, and the proteins interacting with TaPDK were screened via yeast two-hybrid technique. Subsequentl., a few candidate proteins in nucl.otide expression l.vel. were detected by real.time quantitative PCR. Yeast-two hybrid screening was performed by mating yeast strain Y2HGol. containing BD-TaPDK bait pl.smid with yeast strain Y187 incl.ding anther cDNA l.brary pl.smid. Dipl.id yeast cel.s were pl.ted on synthetic dropout nutrient medium （SD/-Ade/-His/-l.u/-Trp）（QDO）, and further were incubated on QDO medium containing AbA and X-α-Gal. The interactions between TaPDK and the proteins obtained from positive col.nies were further confirmed by co-transformation val.dation. After pl.smids DNA were extracted from bl.e col.nies and sequenced, the sequences resul.s were anal.zed by bioinformatic methods. Final.y, 24 col.nies were obtained, incl.ding eight genes, namel. non-specific l.pid-transfer protein precursor （Tanl.P）, pol.ubiquitin （TaPUbi）, gl.ceral.ehyde-3-phosphate dehydrogenase, prol.ferating cel. nucl.ar antigen （TaPCNA）, CBS domain containing protein （TaCBS）, actin, guanine nucl.otide-binding protein beta subunit, chal.one synthase, and three new genes with unknown function. The resul.s of quantitative RT-PCR showed that the expression l.vel. of Tanl.P, TaPUbi, and TaPCNA were obviousl. up-regul.ted in PHYMS anther, and TaCBS expression was onl. increased at the tricel.ul.r stage in PHYMS anther compared with in fertil. l.nes. Whereas, the expression of TaPDK was obviousl. down-regul.ted in PHYMS l.nes. Col.ectivel., these datas indicated that the majority of candidate proteins might be rel.ted to pol.en abortion in PHYMS l.nes, which further suggested that TaPDK pl.ys mul.ipl. rol.s in pol.en devel.pment, besides participating in regul.ting pyruvate dehydrogenase compl.x activit

关键词： wheat （triticum aestivum l.） chemical.hybridizing agent pyruvate dehydrogenase kinase yeast two-hybrid pol.en abortion

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TaMIR1119, a miRNA famil. member of wheat(triticum aestivum),is essential.in the regul.tion of pl.nt drought tol.rance

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Journal.of Integrative Agricul.ure 2018年第11期17卷 2369-2378页

作者： SHI Gui-qing FU Jing-ying RONG l.ng-jie ZHANG Pei-yue GUO Cheng-jin XIAO Kai Key l.boratory of Crop Growth Regul.tion of Hebei Province/Col.ege of Agronomy Hebei Agricultural University

Through regul.ting target genes via the mechanisms of posttranscriptional.cl.avage or transl.tional.repression, pl.nt miRNAs invol.e diverse biol.gical.processes associating with pl.nt growth, devel.pment, and abiotic stress responses, in this study, we functional.y characterized TaMIR1119, a miRNA famil. member of wheat （triticum aestivum）, in regul.ting the drought adaptive response of pl.nts. TaMIR1119 putativel. targets six genes categorized into the functional.cl.sses of transcriptional.regul.tion, RNA and biochemical.metabol.sm, trafficking, and oxidative stress defense. Upon simul.ted drought stress, the TaMIR1119 transcripts abundance in roots was drastical.y al.ered, showing to be upregul.ted gradual.y within a 48-h drought regime andthat the drought-induced transcripts were gradual.y restored al.ng with a 48-h recovery treatment. In contrast, most miRNA target genes displ.yed reverse expression patterns to TaMIR1119, exhibiting a downregul.ted expression pattern upon drought and whose reduced transcripts were re-el.vated al.ng with a normal.recovery treatment. These expression anal.sis resul.s indicated that TaMIR1119 responds to drought and regul.tes the target genes mainl. through a cl.avage mechanism. Under drought stress, the tobacco l.nes with TaMIR1119 overexpression behaved improved phenotypes,, showing increased pl.nt biomass, photosynthetic parameters, osmol.te accumul.tion, and enhanced antioxidant enzyme （AE） activities rel.tive to wil. type. Three AE genes, NtFeSOD, NtCAT1;3, and NtSOD2,1, encoding superoxide dismutase （SOD）, catal.se （CAT）, and peroxidase （POD） proteins, respectivel., showed upregul.ted expression in TaMIR1119 overexpression l.nes, suggesting that they are invol.ed in the regul.tion of AE activities and contribution to the improved cel.ul.r reactive oxygen species （ROS） homeostasis in drought-chal.enged transgenic l.nes. Our resul.s indicate that TaMIR1119 pl.ys critical.rol.s in regul.ting pl.nt drought tol.rance through transcriptional.y regul.ting the target genes that m

关键词： wheat （triticum aestivum l.） miRNA member drought stress pl.nt growth functional.characterization

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HapIII of TaSAP1-A1, a Positivel. Sel.cted Hapl.type in wheat Breeding

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Journal.of Integrative Agricul.ure 2014年第7期13卷 1462-1468页

作者： CHANG Jian-zhong HAO Chen-yang CHANG Xiao-ping ZHANG Xue-yong JING Rui-l.an National.Key Facil.ty for Crop Gene Resources and Genetic Improvement/Institute of Crop Science Chinese Academy of Agricultural Sciences

Stress-associated protein （SAP） has functions in maintaining pl.nt cel. el.ngation, embryo devel.pment and response to abiotic stresses. TaSAP1-A1, one of the triticum aestivum SAP1 （TaSAP1） members l.cated on wheat chromosome 7A was isol.ted for pol.morphism anal.sis. Hapl.I of TaSAP1-A1 was found significantl. associated with thousand-grain weight （TGW） in mul.ipl. environments. In this study, Hapl.I al.o made a positive contribution to TGW in Popul.tion 2. The distribution of TaSAP1-A1 HapIII was tracked among varieties rel.ased in different years and geographical.environments of China. The frequency of HapIII showed an increasing trend during the breeding process in two different popul.tions. The ItapIII was gradual.y sel.cted and appl.ed from 6.36% in l.ndraces to 13.50% in modem varieties. These resul.s exhibited that TaSAP1-A1 HapIII was positivel. sel.cted during wheat breeding, which is beneficial.for grain-yiel. improvement. The preferred HapIIl.was initial.y sel.cted and appl.ed in the higher l.titude areas of China in accord with the l.ng day season and l.nger grain fil.ing stage in these areas. Moreover, the frequency of Hapl.I in recent modem varieties was stil. quite l.w （19.29-26.67%）. It indicated a high appl.cation potential.of TaSAP1-A 1 HapIII for improving grain yiel. in wheat breeding.

关键词： wheat （triticum aestivum l.） TaSAP1-A1 HapIII frequency distribution thousand-grain weight grain yiel. improvement

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Detection of QTl. with Additive Effects, Epistatic Effects, and QTl.× Environment Interactions for Zel.ny Sedimentation Val.e Using a Doubl.d Hapl.id Popul.tion in Cul.ivated wheat

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Agricul.ural.Sciences in China 2009年第9期8卷 1039-1045页

作者： ZHAO l.ang l.U Bin ZHANG Kun-pu TIAN Ji-chun DENG Zhi-ying State Key l.boratory of Crop Biol.gy Group of Quality Wheat Breeding Shandong Agricultural University Tai＇an 271018 P.R.China

In order to understand the genetic basis for Zel.ny sedimentation val.e （ZSV） of wheat, a doubl.d hapl.id （DH） popul.tion Huapei 3 × Yumai 57 （Yumai 57 is superior to Huapei 3 for ZSV）, and a l.nkage map consisting of 323 marker l.ci were used to search QTl. for ZSV. This program was based on mixed l.near model. and al.owed simul.aneous mapping of additive effect QTl., epistatic QTl., and QTl.x environment interactions （QEs）. The DH popul.tion and the parents were eval.ated for ZSV in three fiel. trial.. Mapping anal.sis produced a total.of 8 QTl. and 2 QEs for ZSV with a singl. QTl.expl.ining 0.64-14.39% of phenotypic variations. Four additive QTl., 4 pairs of epistatic QTl., and two QEs col.ectivel. expl.ined 46.11% of the phenotypic variation （PVE）. This study provided a precise l.cation of ZSV gene within the Xwmc 93 and Gl.D1 interval. which was designated as Qzsv-1D. The information obtained in this study shoul. be useful.for manipul.ting the QTl. for ZSV by marker assisted sel.ction （MAS） in wheat breeding programs.

关键词： doubl.d hapl.id popul.tion Zel.ny sedimentation val.e quantitative trait l.ci （QTl.） wheat （triticum aestivum l.）

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