FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2799559257> ?p ?o ?g. }

• W2799559257 abstract "Over 17 million km(^2) of land surface is affected by flooding every year, resulting in severe damages to plants and yield losses in agricultural production around the globe. While the importance of plant breeding for waterlogging tolerance has long been on the agenda, the progress in the field is handicapped by the physiological and genetic complexity of this trait.The main feature of waterlogged soils is oxygen deprivation, due to slow gas diffusion in water. Decreased oxygen content in waterlogged soils leads to oxygen deficiency, resulting in reduced energy availability for plants. Plant adaptation to waterlogged conditions requires a set of morphological and physiological/biochemical changes. The formation of aerenchyma is one of the most crucial adaptive traits for waterlogging tolerance in wetland species such as rice. Enzymatic scavenging may also contribute to waterlogging tolerance by providing detoxification of reactive oxygen species (ROS). In this thesis, the changes of root porosity (an indicator of aerenchyma formation in roots) and activities in leaves of four major antioxidant enzymes was reported, in six barley genotypes contrasting in waterlogging tolerance. Soil waterlogging caused significant increases in adventitious root porosity in all genotypes. Waterlogging tolerant genotypes showed not only significantly higher adventitious root porosity than sensitive genotypes (P < 0.01) but also much faster development of aerenchyma. In contrast, antioxidant enzyme activities in leaves did not correlate with waterlogging tolerance.Quantifying aerenchyma formation after 7 days of waterlogging can be a fast and reliable approach for the selection of waterlogging tolerant barley genotypes, which is supported by measurements of redox potential (an indicator of anaerobic conditions). This protocol was also used to identify quantitative trait loci (QTL) in a doubled haploid population of barley from the cross between Yerong (tolerant) and Franklin (sensitive) genotypes. The QTL for aerenchyma formation and root porosity were at the same location as one of the major QTL for waterlogging tolerance. The major QTL for aerenchyma formation after 7 days waterlogging treatment on chromosome 4H explained 42.8% of the phenotypic variance. Seven new markers were developed and added onto this region on chromosome 4H. These markers can be effectively used in marker assisted selection to improve waterlogging tolerance in barley.A wild barley genotype TAM407227 showed very good tolerance to waterlogging and, therefore, provides a useful resource for breeding waterlogging tolerant barley. A high density linkage map was constructed between the wild barley and a cultivated barley Franklin (waterlogging sensitive) using 163 doubled haploid lines. A total of 17 QTL were detected for various traits under waterlogging and control conditions. A new major allele for waterlogging tolerance and aerenchyma formation under waterlogging conditions was identified. The QTL for aerenchyma formation on chromosome 4H explained 76.8% phenotypic variance with a LOD value of 51.4. The high density linkage maps and the QTL for aerenchyma formation can be effectively used for further fine mapping, QTL positional cloning, and marker assisted selection.Breeding for abiotic stress tolerant crops has drawn increased attention and a large number of QTL for drought, salinity, and waterlogging tolerance in barley have been detected. However, very few QTL have been successfully used in marker assisted selection in breeding programs. We summarized 632 QTL for drought, salinity and waterlogging tolerance in barley. Among all these QTL, 195 major QTL with a LOD value above 3.0 were used to conduct metaanalysis to refine QTL positions for use in marker assisted selection. Meta-analysis was used to map the summarized major QTL for drought, salinity, and waterlogging tolerance from different mapping populations onto the barley physical map. The positions of identified meta-QTL (MQTL) were used to search for candidate genes for drought, salinity, and waterlogging tolerance in barley. Two meta-QTL, MQTL3H.4 and MQTL6H.2, were found to be associated with drought tolerance. Fine mapped QTL for salinity tolerance, HvNax4 and HvNax3, were validated on MQTL1H.4 and MQTL7H.2, respectively. MQTL2H.1 and MQTL5H.3 are also the target regions for improving salinity tolerance in barley. MQTL4H.4 with a fine mapped QTL for aerenchyma formation under waterlogging conditions is the main region controlling waterlogging tolerance in barley. Detected and refined MQTL and candidate genes are crucial for future successful marker assisted selection in barley breeding." @default.
• W2799559257 created "2018-05-17" @default.
• W2799559257 creator A5044193403 @default.
• W2799559257 date "2017-01-01" @default.
• W2799559257 modified "2023-09-26" @default.
• W2799559257 title "Improving waterlogging tolerance in barley with molecular and physiological markers" @default.
• W2799559257 cites W1006492857 @default.
• W2799559257 cites W1271168885 @default.
• W2799559257 cites W13320405 @default.
• W2799559257 cites W147823657 @default.
• W2799559257 cites W1489183281 @default.
• W2799559257 cites W1490365720 @default.
• W2799559257 cites W1492391952 @default.
• W2799559257 cites W1499694192 @default.
• W2799559257 cites W151445842 @default.
• W2799559257 cites W1518372518 @default.
• W2799559257 cites W1520320223 @default.
• W2799559257 cites W1520814868 @default.
• W2799559257 cites W1536654439 @default.
• W2799559257 cites W1537463019 @default.
• W2799559257 cites W1542649433 @default.
• W2799559257 cites W1549031094 @default.
• W2799559257 cites W1554626536 @default.
• W2799559257 cites W1568200847 @default.
• W2799559257 cites W1588913699 @default.
• W2799559257 cites W1589893269 @default.
• W2799559257 cites W1595771770 @default.
• W2799559257 cites W1597130528 @default.
• W2799559257 cites W1639793765 @default.
• W2799559257 cites W1651744008 @default.
• W2799559257 cites W1704779458 @default.
• W2799559257 cites W1784222911 @default.
• W2799559257 cites W1787240576 @default.
• W2799559257 cites W1830472992 @default.
• W2799559257 cites W1873720074 @default.
• W2799559257 cites W1901352559 @default.
• W2799559257 cites W1907426129 @default.
• W2799559257 cites W1912884694 @default.
• W2799559257 cites W1918987299 @default.
• W2799559257 cites W1930133311 @default.
• W2799559257 cites W1930191359 @default.
• W2799559257 cites W1948344039 @default.
• W2799559257 cites W1963711405 @default.
• W2799559257 cites W1963718572 @default.
• W2799559257 cites W1964124081 @default.
• W2799559257 cites W1964807728 @default.
• W2799559257 cites W1964818190 @default.
• W2799559257 cites W1964917779 @default.
• W2799559257 cites W1965226002 @default.
• W2799559257 cites W1965924671 @default.
• W2799559257 cites W1966751650 @default.
• W2799559257 cites W1967491518 @default.
• W2799559257 cites W1969523849 @default.
• W2799559257 cites W1970206688 @default.
• W2799559257 cites W1970679366 @default.
• W2799559257 cites W1971215293 @default.
• W2799559257 cites W1973369974 @default.
• W2799559257 cites W1974454159 @default.
• W2799559257 cites W1974650557 @default.
• W2799559257 cites W1975028422 @default.
• W2799559257 cites W1975082204 @default.
• W2799559257 cites W1975237304 @default.
• W2799559257 cites W1975334905 @default.
• W2799559257 cites W1976079993 @default.
• W2799559257 cites W1976698962 @default.
• W2799559257 cites W1978434354 @default.
• W2799559257 cites W1978544990 @default.
• W2799559257 cites W1981728024 @default.
• W2799559257 cites W1981891641 @default.
• W2799559257 cites W1982251843 @default.
• W2799559257 cites W1982578345 @default.
• W2799559257 cites W1983157183 @default.
• W2799559257 cites W1983264224 @default.
• W2799559257 cites W1984044134 @default.
• W2799559257 cites W1984529667 @default.
• W2799559257 cites W1985753298 @default.
• W2799559257 cites W1986294721 @default.
• W2799559257 cites W1986744645 @default.
• W2799559257 cites W1989404156 @default.
• W2799559257 cites W1989859751 @default.
• W2799559257 cites W1989916395 @default.
• W2799559257 cites W1990600432 @default.
• W2799559257 cites W1990624794 @default.
• W2799559257 cites W1991270574 @default.
• W2799559257 cites W1992039827 @default.
• W2799559257 cites W1993480266 @default.
• W2799559257 cites W1993752650 @default.
• W2799559257 cites W1994179656 @default.
• W2799559257 cites W1994291307 @default.
• W2799559257 cites W1994543638 @default.
• W2799559257 cites W1995156838 @default.
• W2799559257 cites W1995443698 @default.
• W2799559257 cites W1996222696 @default.
• W2799559257 cites W1996604439 @default.
• W2799559257 cites W1996951052 @default.
• W2799559257 cites W1997935698 @default.
• W2799559257 cites W1999414181 @default.
• W2799559257 cites W1999457590 @default.
• W2799559257 cites W2002894295 @default.
• W2799559257 cites W2004755530 @default.

• next