Seedling root QTLs analysis on dynamic development and upon nitrogen deficiency stress in Upland cotton

Shang, Lianguang; Cai, Shihu; Ma, Lingling; Wang, Yumei; Abduweli, Abdugheni; Wang, Meiyan; Wang, Xiaocui; Liang, Qingzhi; Hua, Jinping

doi:10.1007/s10681-015-1564-3

Cited by 17 publications

(19 citation statements)

References 61 publications

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“…For instance, Maccaferri et al (2016) detected several QTLs for root length, root number and root growth angle in the whole genome of tetraploid wheat except 4A and 5B, Ayalew et al (2017) located some QTLs for root length on 1A, 1B, 2D, 3A, 5A, 6A and 7B in hexaploid wheat. Furthermore, quite a few of QTLs for root diameter, surface area and root volume have been reported by Petrarulo et al (2015) and Shang et al (2016).…”

Section: Introductionmentioning

confidence: 89%

Identification of quantitative trait loci for seedling root traits from Tibetan semi-wild wheat (Triticum aestivum subsp. tibetanum)

Luo

Zhang

et al. 2017

Genome

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As a primitive hexaploid wheat resource distributed only in Tibet, Tibetan semi-wild wheat (Triticum aestivum subsp. tibetanum Shao) possesses unique characteristics that could be exploited in wheat breeding programs. Its good root system could offer a stable platform for above-ground components. To detect possible excellent locus for root traits from Tibetan semi-wild wheat, we identified QTLs for root traits using a recombinant inbred line population derived from a cross between Tibetan semi-wild wheat Q1028 and Zhengmai 9023. A total of 15 QTLs on eight chromosomes were detected, including four major QTLs, QMrl.sau-7B, QTrl.sau-4B, QAd.sau-7A, and QSa.sau-4B. The phenotypic variation explained by each of these QTLs ranges from 5.67% to 16.68%. Positive alleles of six QTLs were derived from Q1028. Several novel QTLs for root traits were identified. In addition, significant correlations were detected amongst root traits and agronomic traits. Taken together, these results suggest that Tibetan semi-wild wheat and the newly identified novel QTLs could be useful in future breeding programs.

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Section: Introductionmentioning

confidence: 89%

Identification of quantitative trait loci for seedling root traits from Tibetan semi-wild wheat (Triticum aestivum subsp. tibetanum)

Luo

Zhang

et al. 2017

Genome

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“…Two hybrids were employed in the present research. One is ‘Xinza 1’ ( G. hirsutum ) ( Liang et al 2013 , 2014 , 2015 ; Shang et al 2015a , 2015b , 2016 ; hereafter referred to as ‘XZ hybrid’), derived from a cross of ‘GX1135’ and ‘GX100-2’. The other has a common female parent with ‘Xinza 1’, derived from a cross between ‘GX1135’ and ‘VGX100-2’ (hereafter referred to as “XZV” hybrid).…”

Section: Methodsmentioning

confidence: 99%

Partial Dominance, Overdominance, Epistasis and QTL by Environment Interactions Contribute to Heterosis in Two Upland Cotton Hybrids

Shang

Wang

Cai

et al. 2016

G3 Genes|Genomes|Genetics

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Based on two recombinant inbred line (RIL) populations, two corresponding backcross (BC) populations were constructed to elucidate the genetic basis of heterosis in Upland cotton (Gossypium hirsutum L.). The yield, and yield components, of these populations were evaluated in three environments. At the single-locus level, 78 and 66 quantitative trait loci (QTL) were detected using composite interval mapping in RIL and BC populations, respectively, and 29 QTL were identified based on mid-parental heterosis (MPH) data of two hybrids. Considering all traits together, a total of 50 (64.9%) QTL with partial dominance effect, and 27 (35.1%) QTL for overdominance effect were identified in two BC populations. At the two-locus level, 120 and 88 QTL with main effects (M-QTL), and 335 and 99 QTL involved in digenic interactions (E-QTL), were detected by inclusive composite interval mapping in RIL and BC populations, respectively. A large number of QTL by environment interactions (QEs) for M-QTL and E-QTL were detected in three environments. For most traits, average E-QTL explained a larger proportion of phenotypic variation than did M-QTL in two RIL populations and two BC populations. It was concluded that partial dominance, overdominance, epistasis, and QEs all contribute to heterosis in Upland cotton, and that partial dominance resulting from single loci and epistasis play a relatively more important role than other genetic effects in heterosis in Upland cotton.

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“…, , Shang et al. ,c, ; hereinafter referred to as ‘XZ hybrid’), derived from a cross of ‘GX1135’ and ‘GX100‐2’. The other one has common female parent with ‘Xinza 1’, derived from the cross between ‘GX1135’ and ‘VGX100‐2’ (hereinafter referred to as ‘XZV hybrid’).…”

Section: Methodsmentioning

confidence: 99%

Genetic analysis and QTL mapping of oil content and seed index using two recombinant inbred lines and two backcross populations in Upland cotton

et al. 2016

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Cottonseed is one of the main by-products of cotton. To explore the genetic composition of oil content (OC) and seed index (SI) is helpful for utilizing the cottonseed. Under multiple environmental conditions, the genetic structures of OC and SI were explored using two recombinant inbred lines (RILs) and corresponding backcross (BC) populations in Upland cotton. Twenty-four and 31 quantitative trait loci (QTLs) for OC and SI, respectively, were detected using composite interval mapping, in which 9 QTLs for OC and 18 QTLs controlling SI were simultaneously identified in more than two environments or two populations. Fortyseven and 37 QTLs with main effects (M-QTLs) for OC and SI and 114 and 74 QTLs involved in digenic interactions (E-QTLs), respectively, identified by inclusive composite interval mapping. On average, the EQTLs explained a larger portion of the phenotypic variation than the MQTLs did. It was concluded that additive effects of single-locus and epistasis derived from complementary loci with few detectable single-locus effects played an important role in oil content and seed index in Upland cotton.

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Seedling root QTLs analysis on dynamic development and upon nitrogen deficiency stress in Upland cotton

Cited by 17 publications

References 61 publications

Identification of quantitative trait loci for seedling root traits from Tibetan semi-wild wheat (Triticum aestivum subsp. tibetanum)

Identification of quantitative trait loci for seedling root traits from Tibetan semi-wild wheat (Triticum aestivum subsp. tibetanum)

Partial Dominance, Overdominance, Epistasis and QTL by Environment Interactions Contribute to Heterosis in Two Upland Cotton Hybrids

Genetic analysis and QTL mapping of oil content and seed index using two recombinant inbred lines and two backcross populations in Upland cotton

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