Evaluation of aluminium‐tolerant white clover<i>(Trifolium repens)</i>selections on East Otago upland soils

Caradus, J. R.; Crush, J. R.; Ouyang, L.; Fraser, Wilber John

doi:10.1080/00288233.2001.9513470

Cited by 19 publications

(26 citation statements)

References 17 publications

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“…White clover is more tolerant to aluminium than alfalfa but offers less scope for improving genetically its tolerance, given the lack of improvement shown under field conditions by populations selected for improved tolerance (Caradus et al, 2001).…”

Section: Tolerance To Aluminium and Acidic Soilsmentioning

confidence: 99%

Achievements and Challenges in Improving Temperate Perennial Forage Legumes

Annicchiarico¹,

Barrett²,

Brummer³

et al. 2014

Critical Reviews in Plant Sciences

243

233

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Section: Tolerance To Aluminium and Acidic Soilsmentioning

confidence: 99%

Achievements and Challenges in Improving Temperate Perennial Forage Legumes

Annicchiarico¹,

Barrett²,

Brummer³

et al. 2014

Critical Reviews in Plant Sciences

243

233

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“…However, based research, clearly indicating the presence of genetic variation for acid-soil resistance (Caradus et al, 1991; emergence results indicate that the H-AlR-C1 population and its parent, Huia, were essentially identical in Caradus and Mackay, 1995;Caradus and Crush, 1996) although our Huia acid-soil-resistant population did not resistance to Al and that the major change was the increased sensitivity to Al of the H-AlS-C1 population. Results for resistance similar to the H-AlR-C1 population and not different from Huia in Al sensitivity.…”

Section: (A) Effect Of Soil Ph On Root Emergence Across Time From Smentioning

confidence: 68%

“…Caradus et al (2001) transplanted of Al resistance as expressed in the seedling stage by white clover accessions selected for acid-soil resistance primary root growth. Caradus et al (2001) transplanted of Al resistance as expressed in the seedling stage by white clover accessions selected for acid-soil resistance primary root growth.…”

Section: Acid-soil Resistance Of Experimental Populationsmentioning

confidence: 99%

Selection for Aluminum and Acid-Soil Resistance in White Clover

Voigt¹,

Staley²

2004

Crop Science

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based studies are conducted, the effects of Al are usually confounded with other factors such as levels of P, Ca, Despite good resistance to acid-soil stresses, white clover (Tri-Mo, Mn, Zn, organic acids, and other soil components folium repens L.) is not found on some acid soils. Our objectives (Edmeades et al., 1995; Villagarcia et al., 2001). An exwere to develop a large-leafed white clover with acid-soil resistance, to relate seedling Al to mature plant acid-soil resistance, and to vali-ception is studies of the growth of very young seedlings. date our soil-on-agar procedure. We used a two-stage selection pro-This is possible because (i) the effect of Al on root cedure. In Stage 1 we used the soil-on-agar technique to select for growth is rapid, occurring within hours, and can be draseedling Al-resistance and Al-susceptibility in Brown Loam Synthetic matic (Kochian, 1995), (ii) Al and proton activity at the No. 2 and 'Grasslands Huia' white clover. In Stage 2 we used convenroot surface are the major factors limiting white clover tional pot studies with two soil pH treatments, 4.2 and 5.2, and stemprimary root growth, with Al being more toxic than protip cuttings of Al-resistant selections from Brown Loam to select for tons (Brauer, 1998), and (iii) initial root growth is depenacid-soil resistance. The same Stage 1 and 2 techniques were used to dent primarily on nutrient reserves in the seed rather evaluate 12 experimental populations and both parents for seedling than nutrients from the soil (Edmeades et al., 1995). Al resistance and mature plant acid-soil resistance. Across two cycles The soil-on-agar technique (Voigt et al., 1997) takes of selection, both Brown Loam and Huia Al-resistant and susceptible populations diverged. For Brown Loam, progress was made toward advantage of the above factors to provide a biological both increased Al resistance and susceptibility. For Huia, progress apassessment of soils at the critical establishment stage peared more toward Al susceptibility than toward Al resistance. Poputhat is closely related to the toxic form of Al found in lations developed from two-stage selection were more acid-soil resis-the soil solution (Voigt et al., 1998). The procedure can tant than their parent. However, populations selected only for seedling be used to relate seedling Al resistance to acid-soil resis-Al resistance or Al susceptibility were usually no more acid-soil resistance of small-seeded forage legumes (Voigt et al., 1997; tant than their parent. We were able to increase the acid-soil resistance Voigt and Mosjidis, 2002). For this paper, results from of Brown Loam white clover. But, the soil-on-agar procedure was not the soil-on-agar procedure will be discussed as Al resisan effective technique for developing acid-soil-resistant white clover tance, results from pot studies as acid-soil resistance.germplasm.

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“…AS is a vital mechanism regulating gene expression and producing protein diversity [41]. The numbers of AS events identified for the first time in the caucasian clover rhizome was found to be lower than that in Medicago sativa (7,568) [42] but higher than that in Trifolium pratense (5,492) [13]. Our study on the special characteristics of the caucasian clover rhizome was hindered by the lack of a reference genome, and it is impossible to judge the type of AS.…”

Section: Discussionmentioning

confidence: 84%

“…Caucasian clover can protect lawns as a flowering species and an ornamental plant [3]. Compared with white clover, caucasian clover has lower fiber concentrations, greater protein concentrations and forage digestibility [4] outperforming in high aluminum soils [5] and provided high-quality fodder during the year when white clover grows insufficient [6]. Caucasian clover has deep, semi-woody, usually branched main roots, and many branched roots grow new plantlets, either at the ends or nodes [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Revealing the full-length transcriptome of caucasian clover rhizome development

Yin

Zhao

et al. 2020

Preprint

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Background: Caucasian clover (Trifolium ambiguum M. Bieb.) is a strongly rhizomatous, low-crowned perennial leguminous and ground-covering grass. The species may be used as an ornamental plant and is resistant to cold, arid temperatures and grazing due to a well-developed underground rhizome system and a strong clonal reproduction capacity. However, the posttranscriptional mechanism of the development of the rhizome system in caucasian clover has not been comprehensively studied. Additionally, a reference genome for this species has not yet been published, which limits further exploration of many important biological processes in this plant. Result: We adopted PacBio Sequencing and Illumina Sequencing to identify differentially expressed transcripts in five tissues taproot (T1), horizontal rhizome (T2), swelling of taproot (T3), rhizome bud (T4) and rhizome bud tip (T5) of the caucasian clover rhizome. In total, we obtained 19.82 GB clean data and 80,654 nonredundant transcripts were analysed. Additionally, we identified 78,209 open reading frames (ORFs), 65,227 coding sequences (CDSs), 58,276 simple sequence repeats (SSRs), 6,821 alternative splicing (AS) sites, 24,29 long noncoding RNAs (lncRNAs) and 4,501 putative transcription factors (TFs) from 64 different families. Compared with other tissues, T5 exhibited more differentially expressed genes, and co-upregulated genes in T5 are mainly annotated as involved in phenylpropanoid biosynthesis. We also identified betaine aldehyde dehydrogenase (BADH) as a highly expressed gene-specific to T5. A weighted gene co-expression network analysis (WGCNA) cluster analysis of transcription factors and physiological indicators were combined to reveal 11 candidate genes (MEgreen-GA3), three of which belong to the HB-KNOX family, that are up-regulated in T3. We analysed 276 differential transcripts involved in hormone signaling and transduction, and the largest number of transcripts are associated with the IAA signaling pathway, with significant up-regulation in T2 and T5. Conclusions: Taken together, this study contributes to our understanding of gene expression across five different tissues and provides preliminary insight into rhizome growth and development in caucasian clover.

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Evaluation of aluminium‐tolerant white clover(Trifolium repens)selections on East Otago upland soils

Cited by 19 publications

References 17 publications

Achievements and Challenges in Improving Temperate Perennial Forage Legumes

Achievements and Challenges in Improving Temperate Perennial Forage Legumes

Selection for Aluminum and Acid-Soil Resistance in White Clover

Revealing the full-length transcriptome of caucasian clover rhizome development

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