Specific Variation in Shoot Growth and Root Traits Under Waterlogging Conditions of The Seedlings of Tribe Triticeae including Mizutakamoji (Agropyron Humidum)

Kubo, Katashi; Shimazaki, Yumi; Kobayashi, Hiroyuki; Oyanagi, Atsushi

doi:10.1626/pps.10.91

Cited by 13 publications

(6 citation statements)

References 35 publications

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“…In general, stress tolerance is evaluated by measuring the reduction in biomass of plants grown under stress conditions (e.g., Kubo et al 2007 , Malik et al 2011 ). In addition, leaf injury is reliable for evaluating flooding tolerance and is used widely for QTL analyses in barley ( Li et al 2008 , Zhou 2011 ), maize ( Mano et al 2006 ) and soybean ( Cornelious et al 2005 , Reyna et al 2003 ).…”

Section: Introductionmentioning

confidence: 99%

Accurate evaluation and verification of varietal ranking for flooding tolerance at the seedling stage in barley (Hordeum vulgare L.)

Mano

Takeda

2012

Breed. Sci.

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Soil flooding or waterlogging is a major abiotic stress in upland crops. In barley, there have been several reported studies of selection for flooding-tolerant genotypes, but it is difficult to obtain varietal rankings that are consistent among researchers. Our objectives were to establish experimental conditions that could be applied by other research groups and to verify the varietal ranking conducted in an earlier study. We conducted greenhouse experiments on 14 barley varieties. At the 2.5-leaf stage, they were flooded with 0% or 0.1% soluble starch solution (mimicking reducing conditions). At 13 to 15 days after the start of treatment, the degree of leaf injury and the shoot dry weight ratio (treatment:control) were recorded. Reliable and highly repeatable results were obtained for the criterion of leaf injury under reducing conditions, whereas shoot dry weight ratio was unstable. The varieties OUJ820 and OUA301 were highly tolerant, whereas OUA002 and OUJ247 were sensitive; these results matched those of the earlier study. The experimental conditions that we developed here may be useful for selection testing and genetic analysis of flooding tolerance in other laboratories.

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Section: Introductionmentioning

confidence: 99%

Accurate evaluation and verification of varietal ranking for flooding tolerance at the seedling stage in barley (Hordeum vulgare L.)

Mano

Takeda

2012

Breed. Sci.

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“…Tolerance to flooding is genetically complex, being related to several morphological, anatomical and physiological traits. Recently, wild species have been noted to be valuable genetic resources toward the breeding of flooding-tolerant crops (Colmer et al 2007, Kubo et al 2007. In our study, we used a series of teosintes, a wild progenitor of maize, as a foundation for examining flooding tolerance .…”

Section: Introductionmentioning

confidence: 99%

Verification of QTL controlling root aerenchyma formation in a maize * teosinte "Zea nicaraguensis" advanced backcross population

Mano

Omori

2008

Breed. Sci.

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Root aerenchyma formation is considered to be one of the most important characteristics for adapting to flooding. Using an F 2 population of maize B64 × teosinte Zea nicaraguensis, we earlier found that, in Z. nicaraguensis, quantitative trait loci (QTLs) in two regions of chromosome 1 (Qaer1.02-3 and Qaer1.07) are associated with aerenchyma formation under non-flooding conditions. The objective of this study was to determine the utility of these (and any other) aerenchyma QTLs in marker-assisted maize breeding. For this study, an elite maize Mi29 × teosinte Z. nicaraguensis 214 BC 2 F 1 individual population was used for advanced backcross-QTL mapping (AB-QTL). An SSR-based map was constructed using 94 markers, covering 852.7 cM for the ten chromosomes. Mapping revealed that a QTL for aerenchyma formation under non-flooding conditions exhibiting a larger effect was located on chromosome 1 (bin 1.06), the position of which was close to the previously identified Qaer1.07. Also, two QTLs with minor effects were mapped to a different position on chromosomes 1 (bin 1.11) and 5 (bin 5.09). With a few additional backcrosses, it will be possible to obtain near-isogenic lines possessing aerenchyma-forming genes. These materials may be useful in breeding flooding-tolerant maize hybrids.

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“…Well-formed aerenchyma spaces in lateral roots may partially contribute to enhanced internal aeration in nodal roots through a higher porosity of non-aerenchymatous tissues of cuboidal cortical cell packing (Justin & Armstrong, 1987). Root branching and lateral roots under waterlogging conditions is found to correlate with waterlogging tolerance in Tribe Triticeae (Kubo et al, 2007) and Trifolium species (Gibberd et al, 2001). Pardales et al (1991) indicated that these lateral roots have a short-lived duration, but we found that newly formed lateral roots were observed throughout flooding period.…”

Section: Discussionmentioning

confidence: 70%

“…Ability of plants to produce adventitious roots or NRs carrying well-developed aerenchyma spaces is identified as an important character for flooding tolerance for well-adapted flooding species such as rice (McDonald et al, 2002;Colmer, 2003) or upland crop species such as maize (Zaidi et al, 2003(Zaidi et al, , 2004Mano et al, 2006), soybean (Henshaw et al, 2007), Trifolium spp. (Gibberd et al, 2001) kenaf or Tribe Triticeae (Kubo et al, 2007). Root aerenchymas or porosity enhance transport of oxygen, carbon dioxide and ethylene between plant parts above water and submerged tissues (Armstrong, 1979;Laan et al, 1990;Jackson & Colmer, 2005).…”

Section: Discussionmentioning

confidence: 99%

“…In water-loving species, intercellular gas-filled spaces that often extend from the shoots to near the root tips could enhance transport of oxygen, carbon dioxide and ethylene between plant parts above water and submerged tissues (Armstrong, 1979;Laan et al, 1990). The ability of plants to produce adventitious roots and nodal roots and aerenchyma formation in roots are important characters for flooding-tolerant crops (Orchard & Jessop, 1985;McDonald et al, 2001McDonald et al, , 2002Zaidi et al, 2003Zaidi et al, , 2004Matsuura et al, 2005;Mano et al, 2006;Henshaw et al, 2007;Kubo et al, 2007). Glaz et al (2004) also reported aerenchyma formation in stalks that supports internal gas spaces resulting in enhanced cane yield and sucrose yield in sugarcane.…”

Section: Introductionmentioning

confidence: 99%

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A flood-free period combined with early planting is required to sustain yield of pre-rice sweet sorghum (Sorghum bicolorL. Moench)

Promkhambut

Polthanee

Akkasaeng

et al. 2011

Acta Agriculturae Scandinavica, Section B — Soil & Plant Sc

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Publication details, including instructions for authors and subscription information: http://www.tandfonline.com/loi/sagb20 A flood-free period combined with early planting is required to sustain yield of pre-rice sweet sorghum (Sorghum bicolor L. Moench) AbstractUnderstanding the responses of sweet sorghum to flooding and the characters associated with flooding tolerance may be a useful strategy for pre-rice production and help meet demand for biofuel feedstock. Three sweet sorghum genotypes (Bailey, Keller and Wray) and five flooding treatments including non-flooding control, continuous flooding extended from 30, 45, 60 and 75 days after emergence to harvest were conducted under greenhouse conditions. Flooding decreased leaf dry weight (22Á60%), leaf area (10Á70%), number of node per stalk (1Á5%), shoot dry weight (5Á20%) and stalk yield (2Á22%) with highest reduction in 30 days after emergence flooding treatment. Flooding later than 30 days after emergence did not significantly affect shoot growth, yield and yield components. Brix value, sucrose content and total sugar content were not significantly affected. All studied cultivars had similar shoot growth response. Flooding induced development of roots in water; root length, root dry weight, nodal root and lateral root number and interconnection of aerenchyma spaces from roots in flooded soil to stalk base above water level but suppressed root growth in flooded soil. The acclimation traits were highest in Keller, flooding from 30 days after emergence but there was a lack of root development in 75 days after emergence flooding treatments. These findings indicate the effect of waterlogging on sweet sorghum growth and yield strongly depends on the growth stage at which it occurs. There were genetic variations in root morphological and anatomical responses to flooding of sweet sorghum. The development of nodal and lateral roots and aerenchyma formation from flooded plant parts to stalk bases above water level may distribute to flooding tolerance in sweet sorghum. Based on the results, a flood-free period of at least 30 days after emergence is required to sustain yield of pre-rice sweet sorghum and early planting is highly recommended.

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Specific Variation in Shoot Growth and Root Traits Under Waterlogging Conditions of The Seedlings of Tribe Triticeae including Mizutakamoji (Agropyron Humidum)

Cited by 13 publications

References 35 publications

Accurate evaluation and verification of varietal ranking for flooding tolerance at the seedling stage in barley (<i>Hordeum vulgare</i> L.)

Accurate evaluation and verification of varietal ranking for flooding tolerance at the seedling stage in barley (<i>Hordeum vulgare</i> L.)

Verification of QTL controlling root aerenchyma formation in a maize * teosinte "Zea nicaraguensis" advanced backcross population

A flood-free period combined with early planting is required to sustain yield of pre-rice sweet sorghum (Sorghum bicolorL. Moench)

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