Genetic dissection of plant height by molecular markers using a population of recombinant inbred lines in maize

Tang, Jihua; Teng, Wen-Tao; Yan, Jianbing; Ma, Xiqing; Meng, Yan; Jin-rui, Dai; Li, Jiansheng

doi:10.1007/s10681-006-9312-3

Cited by 73 publications

(12 citation statements)

References 19 publications

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“…For example, during the green revolution, the introduction of semi-dwarf varieties into wheat ( T. aestivum L.) appropriately reduced PHT and contributed significantly to a worldwide increase in potential grain yield (Peng et al 1999). PHT is known to be typically under polygenic control (Bellucci et al 2015; Tang et al 2007). Thus, identification of QTL/gene controlling PHT would help to improve the efficiency of designed breeding in wheat.…”

Section: Introductionmentioning

confidence: 99%

Dissection of two quantitative trait loci with pleiotropic effects on plant height and spike length linked in coupling phase on the short arm of chromosome 2D of common wheat (Triticum aestivum L.)

et al. 2019

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Key message Two QTL with pleiotropic effects on plant height and spike length linked in coupling phase on chromosome 2DS were dissected, and diagnostic marker for each QTL was developed. Abstract Plant height (PHT) is a crucial trait related to plant architecture and yield potential, and dissection of its underlying genetic basis would help to improve the efficiency of designed breeding in wheat. Here, two quantitative trait loci (QTL) linked in coupling phase on the short arm of chromosome 2D with pleiotropic effects on PHT and spike length, QPht/Sl.cau - 2D.1 and QPht/Sl.cau - 2D.2, were separated and characterized. QPht/Sl.cau - 2D.1 is a novel QTL located between SNP makers BS00022234_51 and BobWhite_rep_c63957_1472. QPht/Sl.cau - 2D.2 is mapped between two SSR markers, SSR - 2062 and Xgwm484 , which are located on the same genomic interval as Rht8 . Moreover, the diagnostic marker tightly linked with each QTL was developed for the haplotype analysis using diverse panels of wheat accessions. The frequency of the height-reduced allele of QPht/Sl.cau - 2D.1 is much lower than that of QPht/Sl.cau - 2D.2 , suggesting that this novel QTL may be an attractive target for genetic improvement. Consistent with a previous study of Rht8 , a significant difference in cell length was observed between the NILs of QPht/Sl.cau - 2D.2 . By contrast, there was no difference in cell length between NILs of QPht/Sl.cau - 2D.1 , indicating that the underlying molecular mechanism for these two QTL may be different. Collectively, these data provide a new example of QTL dissection, and the developed diagnostic markers will be useful in marker-assisted pyramiding of QPht/Sl.cau - 2D.1 and/or QPht/Sl.cau - 2D.2 with the other genes in wheat breeding. Electronic supplementary material The online version of this article (10.1007/s00122-019-03318-z) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Dissection of two quantitative trait loci with pleiotropic effects on plant height and spike length linked in coupling phase on the short arm of chromosome 2D of common wheat (Triticum aestivum L.)

et al. 2019

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“…Plant height and ear height are decisive factors to plant density and lodging resistance [20, 40]. In this study, we studied the genetic basis underlying PH and EH with a RIL based design III.…”

Section: Discussionmentioning

confidence: 99%

Quantitative trait locus analysis of heterosis for plant height and ear height in an elite maize hybrid zhengdan 958 by design III

Yang

Fan

et al. 2017

BMC Genet

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BackgroundPlant height (PH) and ear height (EH) are two important agronomic traits in maize selection breeding. F1 hybrid exhibit significant heterosis for PH and EH as compared to their parental inbred lines. To understand the genetic basis of heterosis controlling PH and EH, we conducted quantitative trait locus (QTL) analysis using a recombinant inbreed line (RIL) based design III population derived from the elite maize hybrid Zhengdan 958 in five environments.ResultsA total of 14 environmentally stable QTLs were identified, and the number of QTLs for Z1 and Z2 populations was six and eight, respectively. Notably, all the eight environmentally stable QTLs for Z2 were characterized by overdominance effect (OD), suggesting that overdominant QTLs were the most important contributors to heterosis for PH and EH. Furthermore, 14 environmentally stable QTLs were anchored on six genomic regions, among which four are trait-specific QTLs, suggesting that the genetic basis for PH and EH is partially different. Additionally, qPH.A-1.3, modifying about 10 centimeters of PH, was further validated in backcross populations.ConclusionsThe genetic basis for PH and EH is partially different, and overdominant QTLs are important factors for heterosis of PH and EH. A major QTL qPH.A-1.3 may be a desired target for genetic improvement of maize plant height.Electronic supplementary materialThe online version of this article (doi:10.1186/s12863-017-0503-9) contains supplementary material, which is available to authorized users.

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“…The mQTL on chromosome 10 was also confirmed by Messmer et al (2011) for chlorophyll level and leaf senescence under drought and optimal conditions. Besides SG traits, the mQTL regions on chromosomes 1 and 10 have also been found to be constitutively regulating plant height under both the water regimes across temperate and tropical germplasm (Tang et al 2007; Salvi et al 2011; Chen et al 2011; Cai et al 2012a, b). Notably, most of the studies reported the QTL for SG traits on chromosome 10 (10.04–07) to be of large effect ( R 2 > 10 %), which indicates potential for marker-assisted introgression in future in pedigree and back-cross-based line improvement programmes.…”

Section: Discussionmentioning

confidence: 99%

Molecular mapping across three populations reveals a QTL hotspot region on chromosome 3 for secondary traits associated with drought tolerance in tropical maize

et al. 2014

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Identifying quantitative trait loci (QTL) of sizeable effects that are expressed in diverse genetic backgrounds across contrasting water regimes particularly for secondary traits can significantly complement the conventional drought tolerance breeding efforts. We evaluated three tropical maize biparental populations under water-stressed and well-watered regimes for drought-related morpho-physiological traits, such as anthesis-silking interval (ASI), ears per plant (EPP), stay-green (SG) and plant-to-ear height ratio (PEH). In general, drought stress reduced the genetic variance of grain yield (GY), while that of morpho-physiological traits remained stable or even increased under drought conditions. We detected consistent genomic regions across different genetic backgrounds that could be target regions for marker-assisted introgression for drought tolerance in maize. A total of 203 QTL for ASI, EPP, SG and PEH were identified under both the water regimes. Meta-QTL analysis across the three populations identified six constitutive genomic regions with a minimum of two overlapping traits. Clusters of QTL were observed on chromosomes 1.06, 3.06, 4.09, 5.05, 7.03 and 10.04/06. Interestingly, a ~8-Mb region delimited in 3.06 harboured QTL for most of the morpho-physiological traits considered in the current study. This region contained two important candidate genes viz., zmm16 (MADS-domain transcription factor) and psbs1 (photosystem II unit) that are responsible for reproductive organ development and photosynthate accumulation, respectively. The genomic regions identified in this study partially explained the association of secondary traits with GY. Flanking single nucleotide polymorphism markers reported herein may be useful in marker-assisted introgression of drought tolerance in tropical maize.Electronic supplementary materialThe online version of this article (doi:10.1007/s11032-014-0068-5) contains supplementary material, which is available to authorized users.

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Genetic dissection of plant height by molecular markers using a population of recombinant inbred lines in maize

Cited by 73 publications

References 19 publications

Dissection of two quantitative trait loci with pleiotropic effects on plant height and spike length linked in coupling phase on the short arm of chromosome 2D of common wheat (Triticum aestivum L.)

Dissection of two quantitative trait loci with pleiotropic effects on plant height and spike length linked in coupling phase on the short arm of chromosome 2D of common wheat (Triticum aestivum L.)

Quantitative trait locus analysis of heterosis for plant height and ear height in an elite maize hybrid zhengdan 958 by design III

Molecular mapping across three populations reveals a QTL hotspot region on chromosome 3 for secondary traits associated with drought tolerance in tropical maize

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