QTL mapping of biomass and nitrogen economy traits in willows (Salix spp.) grown under contrasting water and nutrient conditions

Berlin, Sofia; Ghelardini, Luisa; Bonosi, Lorenzo; Weih, Martin; Rönnberg‐Wästljung, Ann Christin

doi:10.1007/s11032-014-0157-5

Cited by 17 publications

(13 citation statements)

References 59 publications

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“…The S 1 population female parent, 78183, also originates from southern Sweden. Initially, the parental clones to S 1 were selected based on variation in phenology traits [31], but the offspring population has also shown variation in different growth traits and in drought response [32]. Based on this earlier documentation, we expect also a variation in different wood traits for the population.…”

Section: Plant Materials and Field Experimentsmentioning

confidence: 99%

QTL Mapping of Wood FT-IR Chemotypes Shows Promise for Improving Biofuel Potential in Short Rotation Coppice Willow (Salix spp.)

et al. 2018

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An increasing interest to convert lignocellulosic biomass into biofuels has highlighted the potential of using willows for this purpose, due to its fast growth in short rotation coppice systems. Here, we use a mapping population of 463 individuals of a cross between Salix viminalis and S. viminalis × S. schwerinii to investigate the genetic background of different wood chemical traits, information of importance for breeding towards different uses of wood. Furthermore, using a subset of the mapping population, the correlation between biogas production and chemical traits was investigated. The phenotyping of wood was carried by Furriertransformed-Infrared spectrometry (FT-IR) and water content analysis. Quantitative trait loci (QTLs) analysis was used to identify regions in the genome of importance for the phenotypic variation of these chemical traits. We found 27 QTLs for various traits. On linkage group (LG) VI-1, QTLs for signals assigned to G-lignin, lignin, and the S/G ratio were collocated and on LG XIV we found a cluster of QTLs representing signals assigned to lignin, cellulose, hemicellulose, and water. The QTLs explained from 3.4 to 6.9% of the phenotypic variation indicating a quantitative genetic background where many genes influence the traits. For the biogas production, a positive and negative correlation was seen with the signals assigned to acetyl and lignin, respectively. This study represents a first step in the understanding of the genetic background of wood chemical traits for willows, information needed for complementary studies, mapping of important genes, and for breeding of varieties for biofuel production purposes.

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Section: Plant Materials and Field Experimentsmentioning

confidence: 99%

QTL Mapping of Wood FT-IR Chemotypes Shows Promise for Improving Biofuel Potential in Short Rotation Coppice Willow (Salix spp.)

et al. 2018

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“…In the present experiment, a higher number of QTLs linked with plant height, shoot diameter and number of shoots per plant (11, 9 and 3 respectively) was identified than in other studies that relied on different types of markers [17,19]. The identified QTLs explained a lower percentage of variability in the analyzed traits (2.97%–16.16%) than those identified by other authors, which explained 14%–22% [17], 10%–20% [21] and 8%–42% of variability [18]. The results of the cited studies suggest that the analyzed traits are controlled by many loci of limited individual impact, as noted by Hallingbäck et al [19].…”

Section: Discussionmentioning

confidence: 59%

“…RAPD and ISSR systems are universal tools that are highly useful at various stages of breeding new plant varieties. In the existing studies, willow loci were identified mainly in analyses of biomass yield [17,18,19,20,21]. Quantitative trait loci linked with the resistance/susceptibility of Salix species to leaf rust were rarely identified, including by Rönnberg-Wästljung et al [31], Hanley et al [26] and Samils et al [22].…”

Section: Discussionmentioning

confidence: 99%

“…A few genetic maps supporting the identification of QTLs linked with various traits have been developed for the genus Salix [8,13,14,15,16,17]. In willows, most of the identified QTLs were linked with biomass yield and yield-associated traits such as plant height, shoot diameter or side branching [17,18,19,20,21]. Molecular markers linked to leaf rust resistance [22], sex [23], phenological traits [14,19], elemental composition of biomass [24], tolerance for environmental factors [18,25], and resistance to diseases and pests [22,26,27] were also identified.…”

Section: Introductionmentioning

confidence: 99%

“…In willows, most of the identified QTLs were linked with biomass yield and yield-associated traits such as plant height, shoot diameter or side branching [17,18,19,20,21]. Molecular markers linked to leaf rust resistance [22], sex [23], phenological traits [14,19], elemental composition of biomass [24], tolerance for environmental factors [18,25], and resistance to diseases and pests [22,26,27] were also identified. Quantitative trait loci associated with plant resistance also play an important role in willows, in particular in varieties intended for large-area multiannual plantations, which become increasingly susceptible to diseases with time.…”

Section: Introductionmentioning

confidence: 99%

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Identification of Quantitative Trait Loci Conditioning the Main Biomass Yield Components and Resistance to Melampsora spp. in Salix viminalis × Salix schwerinii Hybrids

Sulima

Przyborowski

Kuszewska

et al. 2017

IJMS

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The biomass of Salix viminalis is the most highly valued source of green energy, followed by S. schwerinii, S. dasyclados and other species. Significant variability in productivity and leaf rust resistance are noted both within and among willow species, which creates new opportunities for improving willow yield parameters through selection of desirable recombinants supported with molecular markers. The aim of this study was to identify quantitative trait loci (QTLs) linked with biomass yield-related traits and the resistance/susceptibility of Salix mapping population to leaf rust. The experimental material comprised a mapping population developed based on S. viminalis × S. schwerinii hybrids. Phenotyping was performed on plants grown in a field experiment that had a balanced incomplete block design with 10 replications. Based on a genetic map, 11 QTLs were identified for plant height, 9 for shoot diameter, 3 for number of shoots and 11 for resistance/susceptibility to leaf rust. The QTLs identified in our study explained 3%–16% of variability in the analyzed traits. Our findings make significant contributions to the development of willow breeding programs and research into shrubby willow crops grown for energy.

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Comparative transcriptome analysis of Salix cupularis under drought stress

Zhu

et al. 2021

Global Ecology and Conservation

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QTL mapping of biomass and nitrogen economy traits in willows (Salix spp.) grown under contrasting water and nutrient conditions

Cited by 17 publications

References 59 publications

QTL Mapping of Wood FT-IR Chemotypes Shows Promise for Improving Biofuel Potential in Short Rotation Coppice Willow (Salix spp.)

QTL Mapping of Wood FT-IR Chemotypes Shows Promise for Improving Biofuel Potential in Short Rotation Coppice Willow (Salix spp.)

Identification of Quantitative Trait Loci Conditioning the Main Biomass Yield Components and Resistance to Melampsora spp. in Salix viminalis × Salix schwerinii Hybrids

Comparative transcriptome analysis of Salix cupularis under drought stress

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