Variation in carbon traits among Fraxinus mandshurica populations and allometric equations between carbon traits and growth traits

Zhao, Xueping; Liang, Nansong; He, Li; Yu, Lei; Cao, Yang; Xia, Dean; Xiao, Ying; Zhang, Guiqin; Zeng, Fansuo; Yu, Zhan

doi:10.1007/s11056-020-09832-z

Cited by 2 publications

(1 citation statement)

References 31 publications

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“…The early research on the provenance of F. mandshurica was mainly carried out by the Jilin Forestry Research Institute, and recently, it has been mainly carried out by Northeast Forestry University. These studies were focused on a good provenance selection based on growth traits in past, but a study on the selection of good provenances based on C sequestration was reported by our research group recently [21]. The C sequestration characteristics of 20 F. mandshurica provenances seedlings were classified into high, middle and low C sequestration groups.…”

Section: Introductionmentioning

confidence: 99%

Transcriptome Analysis for Fraxinus mandshurica Rupr. Seedlings from Different Carbon Sequestration Provenances in Response to Nitrogen Deficiency

Zhao

Liu

et al. 2021

Forests

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To explore the molecular regulatory mechanism of high-carbon (C) sequestration Fraxinus mandshurica Rupr. (F. mandshurica) provenance and the expression profile of F. mandshurica during nitrogen (N) starvation, the foliage and roots of the annual Wuchang (WC) seedlings with greater C amount and Hailin (HL) seedlings with smaller C amount, which were grown in N-deficient nutrition and complete N, were used for RNA-seq and physiological determination, respectively. One thousand and fifty-seven differentially expressed genes (DEGs) between WC and HL and 8173 DEGs related to N deficiency were identified, respectively. The root of F. mandshurica responded to N deficiency more strongly than foliar. The target genes that responded to N deficiency in roots were mainly regulatory genes (transcription factors, hormones and protein kinases), and their response patterns were upregulated. The growth and N concentration in both WC and HL were reduced by the N deficiency, which might result from the decrease of the leaf Nitrate reductase (NR) and glutamine synthetase (GS) enzyme activity and ABA content, although the root-to-shoot ratio; lateral root number; lignin content; endogenous hormones content (GA, IAA and ZR); root GS and glutamate synthetase activity and transcriptional level of most of the regulatory genes were increased. The C sequestration capacity in WC was greater than that in HL, which related to the higher GS enzymes activity and transcriptional levels of regulatory genes and metabolic genes (terpenes, carbohydrates, and lipid energy). However, the C sequestration advantage of WC was significantly reduced by the N deficiency, which was due to the smaller response to N deficiency compared to HL.

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Section: Introductionmentioning

confidence: 99%

Transcriptome Analysis for Fraxinus mandshurica Rupr. Seedlings from Different Carbon Sequestration Provenances in Response to Nitrogen Deficiency

Zhao

Liu

et al. 2021

Forests

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Study on the variation in and selection of Fraxinus mandshurica provenances and families in northeast China

et al. 2022

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Fraxinus mandshurica Rupr. is one of the main afforestation species in northeast China, and there is great demand for improved F. mandshurica varieties. The results of an investigation into and analysis of the growth traits of F. mandshurica provenances and families showed that there were significant differences in different periods. However, variations in growth traits decreased year by year. There was a significant negative correlation between tree heights of the provenances and sunshine hours in their areas of origin. The provenances of Xinglong, Hailin and Wuchang were selected based on the volume of 18-year-old trees. The average genetic gain from the selection of fast-growing provenances was 19.4%. Ten superior fast-growing families were selected. The average volume of the selected families was 22.6%, higher than that of all families. The correlation coefficient between heights at 6-year-old and at 18a was 0.838 for provenances, and between heights at 4-year-old and at 18-year-old was 0.303 for families. These results indicate that early selection for height in provenances or families could be performed at 6 years or 4 years, respectively. Early selection for DBH and volume in families could start at 8 years.

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Variation in carbon traits among Fraxinus mandshurica populations and allometric equations between carbon traits and growth traits

Cited by 2 publications

References 31 publications

Transcriptome Analysis for Fraxinus mandshurica Rupr. Seedlings from Different Carbon Sequestration Provenances in Response to Nitrogen Deficiency

Transcriptome Analysis for Fraxinus mandshurica Rupr. Seedlings from Different Carbon Sequestration Provenances in Response to Nitrogen Deficiency

Study on the variation in and selection of Fraxinus mandshurica provenances and families in northeast China

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