The Experts below are selected from a list of 273 Experts worldwide ranked by ideXlab platform
Mei Wang - One of the best experts on this subject based on the ideXlab platform.
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low Temperature Tolerance and transcriptome analyses during seed germination of anabasis aphylla
Journal of Plant Interactions, 2019Co-Authors: Mengwen Peng, Yaling Chang, Guangming Chu, Mei WangAbstract:This study aimed to explore differences in the low-Temperature Tolerance of a desert plant, Anabasis aphylla, at different seed germination stages during the fall using transcriptome sequencing to ...
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Low-Temperature Tolerance and transcriptome analyses during seed germination of Anabasis aphylla
2019Co-Authors: Mengwen Peng, Yaling Chang, Guangming Chu, Mei WangAbstract:This study aimed to explore differences in the low-Temperature Tolerance of a desert plant, Anabasis aphylla, at different seed germination stages during the fall using transcriptome sequencing to identify related genes. The survival rate of the seeds decreased with lower Temperatures at different germination stages, and the Tolerance of the stages in decreasing order was as follows: imbibition (I) ≈ testa rupture (II) > testa removal (III) > elongation (IV). Superoxide dismutase, peroxidase, and catalase activities and the malondialdehyde content showed a downward trend after stage II. Transcriptome sequencing of seeds, including ripe and dry dominant seeds (W1) and seeds during different germination stages [imbibition (W2), testa removal (W3), and elongation (W4)] was performed. Some genes were downregulated during seed germination, which mainly included cytochrome P450, oleosin, ethylene-responsive transcription factor, and low Temperature-induced protein. This study suggests that downregulated of some genes may result in a decrease in low-Temperature Tolerance.
Moira M. Ferguson - One of the best experts on this subject based on the ideXlab platform.
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Epistasis in allelic expression at upper Temperature Tolerance QTL in rainbow trout
Aquaculture, 1999Co-Authors: Roy G. Danzmann, Timothy R. Jackson, Moira M. FergusonAbstract:Abstract We have mapped the location of QTL affecting upper Temperature Tolerance in three backcross families of rainbow trout ( Oncorhynchus mykiss ) derived from matings between an F 1 male (high (H)×low (L) Temperature Tolerance selected lines) and two H and one L line females using variation at 61 microsatellite loci. Physiological epistasis was observed among paternally inherited QTL alleles and this depended upon the genomic background in which the alleles were expressed. A marker allele associated with a QTL leading to enhanced thermal resistance in one background (either H or L) showed the opposite association in the other genomic background. These results suggest that the effectiveness of marker assisted selection (MAS) may be limited without prior knowledge of the performance characteristics of QTL alleles in different genomic backgrounds.
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Identification of two QTL influencing upper Temperature Tolerance in three rainbow trout (Oncorhynchus mykiss) half-sib families
Heredity, 1998Co-Authors: Timothy R. Jackson, Roy G. Danzmann, Moira M. Ferguson, Anthony G Fishback, Peter E Ihssen, Michael O'connell, Teresa J CreaseAbstract:We searched for linkage among 24 polymorphic loci (allozymes, RAPD, microsatellites) in three half-sib backcross families of rainbow trout ( Oncorhynchus mykiss ) produced by crossing strains divergent for the quantitative trait of upper Temperature Tolerance. Seven significant and two suggestive pairwise linkage associations between molecular marker loci were observed involving 14 loci clustered into four linkage groups. The association between a pair of allozyme loci ( sIDHP-3 * and mMEP-2 *) has been reported previously. Recombination rates varied greatly between the sexes and families. Two quantitative trait loci (QTL) were mapped by detecting a significant association between variance in upper Temperature Tolerance and alleles at the microsatellite loci Omy325UoG and Ssa14DU . The two QTL appear to reside in different linkage groups and account for ≈13 per cent and 9 per cent of the overall additive genetic variance in upper Temperature Tolerance. No significant interaction was detected between Omy325UoG and Ssa14DU suggesting that the effects of the QTL are additive.
Xie Xiao-jin - One of the best experts on this subject based on the ideXlab platform.
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Analysis of the low Temperature Tolerance of introduced 24 evergreen broad-leaved tree species in Nanjing
Journal of the Zhejiang Forestry College, 2006Co-Authors: Xie Xiao-jinAbstract:Electric conductivities were used to measure the ability of 24 evergreen broad-leaved tree species to withstand the rigors of cold Temperature.These plants such as Cinnamomum camphora,Ilex latifolia and Cyclobalanopsis gracilis that naturally distributed over the north limit of differently subtropical latitudes were introduced to the open in Nanjing.Electric conductivities of excised-branches under simulated freezing treatment were measured and lethal Temperature 50 were calculated.The results could correctly indicate low Temperature Tolerance of these trees in quantitative determination,and be corresponding to observation of wintering in Nanjing.The results are conducive to predicting the low Temperature Tolerance of evergreen trees and the reasonable cultivation of them in landscape architecture of higher latitude regions.
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Application of Kira and Holdridge′s Temperature indexes to low Temperature Tolerance of evergreen trees
Journal of Fujian College of Forestry, 2006Co-Authors: Xie Xiao-jinAbstract:Based on the records of geographical distribution of 14 evergreen broad-leaved trees collected extensively,which mainly distributed or cultivated in Nanjing,two international accepted indexes of vegetation-climate interaction including Kira′s Temperature index and Holdridge′s Temperature index were used.Coldness index(CI) and bioTemperature(BT) of 14 trees were used to(analyse) the ability of them to withstand the rigors of cold Temperature.The results indicated two Temperature indexes were correspondent nearly to their low Temperature Tolerance,the best example was that the stronger hardness of Ilex latifolia calculated in two Temperature indexes was unanimous to adaptability to winter in Nanjing,and it naturally distributed to 32° north latitude.Altogether the results were conducive to predicting the low Temperature Tolerance of evergreen tree species and the reasonable cultivation of them in landscape forests of higher latitude regions.
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The Comparison of Low Temperature Tolerance Ability of Seven Species of Ilex Trees
Journal of Nanjing Forestry University, 2006Co-Authors: Mao Zhi-bin, Xie Xiao-jinAbstract:Electric conductivities of excised-leaves of 7 species of Ilex trees distributed in China were measured and lethal Temperature 50(LT50) were calculated under the simulated freezing treatment.The results indicated that the low Temperature Tolerance ability of 7 species of Ilex trees had a significant difference,and the freezing resistance from strong to weak was Ilex latifolia,I.cornuta,I.chinensis,I.rotunda,I.zhejiangensis,I.hylonoma,I.integra.Four trees selected from 7 species of Ilex trees that treated by 4℃ and-16℃ were chosen to measure the contents of unsaturated fatty acids.The results revealed the content of unsaturated fatty acids and IUFA increased as the Temperature decreased,and the increasing extent of IUFA was were different respectively so they could be used as supplementary validation of the low Temperature Tolerance ability of different Ilex trees.The research results also provide important indexes for introducing Ilex trees to higher latitude region.
Oliphant Andrew - One of the best experts on this subject based on the ideXlab platform.
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The effect of high hydrostatic pressure acclimation on acute Temperature Tolerance and phospholipid fatty acid composition in the shallow-water shrimp Palaemon varians
'Elsevier BV', 2019Co-Authors: Brown Alastair, Thatje Sven, Martinez Alejandro, Pond David, Oliphant AndrewAbstract:Extant deep-sea fauna, including hydrothermal vent endemics such as bresiliid shrimp, are descended from shallow-water ancestors. Previous studies have demonstrated the capacity of shallow-water shrimp to acclimate to hydrostatic pressure representative of the vent environment. It has been proposed that this hyperbaric acclimation depends in part on shifts in phospholipid fatty acid composition to maintain biomembrane function. These shifts are also predicted to reduce critical Temperature Tolerance, potentially limiting the possibility of direct colonisation of the hydrothermal vent environment. Here, we present evidence that acclimation to high hydrostatic pressure (10 MPa ≈ 1000 m water depth) decreases acute Temperature Tolerance from 30.2 °C to 27.1 °C in the shallow-water shrimp Palaemon varians acclimated to 10 °C. Statistically significant shifts in phospholipid fatty acid composition occurred during exposure to high hydrostatic pressure, suggesting that homeoviscous modifications support shifts in environmental Tolerances during hyperbaric acclimation. Despite the reduction in Temperature Tolerance, P. varians retains sufficient thermal scope to tolerate the thermal regime in the hydrothermal vent environment, allowing for the possibility of direct deep-sea hydrothermal vent colonisation by shallow-water shrimp
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The effect of high hydrostatic pressure acclimation on acute Temperature Tolerance and phospholipid fatty acid composition in the shallow-water shrimp Palaemon varians
'Elsevier BV', 2019Co-Authors: Brown Alastair, Thatje Sven, Martinez Alejandro, Pond David, Oliphant AndrewAbstract:Extant deep-sea fauna, including hydrothermal vent endemics such as bresiliid shrimp, are descended from shallow-water ancestors. Previous studies have demonstrated the capacity of shallow-water shrimp to acclimate to hydrostatic pressure representative of the vent environment. It has been proposed that this hyperbaric acclimation depends in part on shifts in phospholipid fatty acid composition to maintain biomembrane function. These shifts are also predicted to reduce critical Temperature Tolerance, potentially limiting the possibility of direct colonisation of the hydrothermal vent environment. Here, we present evidence that acclimation to high hydrostatic pressure (10MPa≈1000m water depth) decreases acute Temperature Tolerance from 30.2°C to 27.1°C in the shallow-water shrimp Palaemon varians acclimated to 10°C. Statistically significant shifts in phospholipid fatty acid composition occurred during exposure to high hydrostatic pressure, suggesting that homeoviscous modifications support shifts in environmental Tolerances during hyperbaric acclimation. Despite the reduction in Temperature Tolerance, P.varians retains sufficient thermal scope to tolerate the thermal regime in the hydrothermal vent environment, allowing for the possibility of direct deep-sea hydrothermal vent colonisation by shallow-water shrimp.REF Compliant by Deposit in other institution's Repository: Southampton's repository on 23/04/2019: https://eprints.soton.ac.uk/430256
Mengwen Peng - One of the best experts on this subject based on the ideXlab platform.
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low Temperature Tolerance and transcriptome analyses during seed germination of anabasis aphylla
Journal of Plant Interactions, 2019Co-Authors: Mengwen Peng, Yaling Chang, Guangming Chu, Mei WangAbstract:This study aimed to explore differences in the low-Temperature Tolerance of a desert plant, Anabasis aphylla, at different seed germination stages during the fall using transcriptome sequencing to ...
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Low-Temperature Tolerance and transcriptome analyses during seed germination of Anabasis aphylla
2019Co-Authors: Mengwen Peng, Yaling Chang, Guangming Chu, Mei WangAbstract:This study aimed to explore differences in the low-Temperature Tolerance of a desert plant, Anabasis aphylla, at different seed germination stages during the fall using transcriptome sequencing to identify related genes. The survival rate of the seeds decreased with lower Temperatures at different germination stages, and the Tolerance of the stages in decreasing order was as follows: imbibition (I) ≈ testa rupture (II) > testa removal (III) > elongation (IV). Superoxide dismutase, peroxidase, and catalase activities and the malondialdehyde content showed a downward trend after stage II. Transcriptome sequencing of seeds, including ripe and dry dominant seeds (W1) and seeds during different germination stages [imbibition (W2), testa removal (W3), and elongation (W4)] was performed. Some genes were downregulated during seed germination, which mainly included cytochrome P450, oleosin, ethylene-responsive transcription factor, and low Temperature-induced protein. This study suggests that downregulated of some genes may result in a decrease in low-Temperature Tolerance.
