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Research using ASReml-SA

Agronomy

Cause of Death: Phytophthora or Flood? Effects of Waterlogging on Phytophthora medicaginis and Resistance of Chickpea (Cicer arietinum)

Chickpea production in Australia is constrained by both waterlogging and the root disease Phytophthora root rot (PRR). Soil saturation is an important pre-condition for significant disease development for many soil-borne Phytophthora spp. In wet years, water can pool in low lying areas within a field, resulting in waterlogging, which, in the presen...

Genetics

New residual feed intake criterion for longitudinal data

Residual feed intake (RFI) is one measure of feed efficiency, which is usually obtained by multiple regression of feed intake (FI) on measures of production, body weight gain and tissue composition. If phenotypic regression is used, the resulting RFI is generally not genetically independent of production traits, whereas if RFI is computed using gen...

Livestock

Climate-Resilient Dairy Cattle Production: Applications of Genomic Tools and Statistical Models

The current changing climate trend poses a threat to the productive efficacy and welfare of livestock across the globe. This review is an attempt to synthesize information pertaining to the applications of various genomic tools and statistical models that are available to identify climate-resilient dairy cows. The different functional and economica...

Fruit Breeding

Defining strawberry shape uniformity using 3D imaging and genetic mapping

Strawberry shape uniformity is a complex trait, influenced by multiple genetic and environmental components. To complicate matters further, the phenotypic assessment of strawberry uniformity is confounded by the difficulty of quantifying geometric parameters ‘by eye’ and variation between assessors. An in-depth genetic analysis of strawberry unifor...

Plant Science

Genomic Predictions With Nonadditive Effects Improved Estimates of Additive Effects and Predictions of Total Genetic Values in Pinus sylvestris

Genomic selection study (GS) focusing on nonadditive genetic effects of dominance and the first order of epistatic effects, in a full-sib family population of 695 Scots pine (Pinus sylvestris L.) trees, was undertaken for growth and wood quality traits, using 6,344 single nucleotide polymorphism markers (SNPs) generated by genotyping-by-sequencing ...

Research using Genstat

Plant

Mineral Fertilization Influences the Growth, Cryptolepine Yield, and Bioefficacy of Cryptolepis sanguinolenta (Lindl.) Schlt.

Cryptolepis sanguinolenta (Lindl.) Schlt., the main source of cryptolepine alkaloid, is intensively exploited in the wild to treat malaria and Lyme disease. In this study, the influence of four inorganic fertilizers (supplying N, P, K, or NPK) and four growth periods (3, 6, 9, and 12 months after transplanting) on the herb’s root biomass, cryptolep...

Animal Science

The effect of perennial and annual wheat forages, fed with or without lucerne, on the fatty acid profile and oxidative status of lamb meat

The current study investigated the fatty acid profile and oxidative status of the meat from lambs that were fed a novel perennial wheat or a conventional annual wheat, either as a cereal monoculture or lucerne biculture. Twelve lambs were assigned to each of the four dietary treatments (48 lambs in total) and held within individual pens for the dur...

Animal

Automated Monitoring of Panting for Feedlot Cattle: Sensor System Accuracy and Individual Variability

Panting is considered a robust animal response indicator of heat stress; however, continuous visual monitoring is impractical on a commercial scale. Current thermal indices are good predictors of heat stress at a herd level but have limited application at the individual level. The automated monitoring of heat stress responses of individual cattle b...

Agricultural System

The agronomic and economic viability of innovative cropping systems to reduce Fusarium head blight and related mycotoxins in wheat

The effective control of Fusarium head blight (FHB) in wheat, mainly caused by the toxigenic fungus Fusarium graminearum, has a significant impact on food safety worldwide. As maize is one of the main hosts of F. graminearum, the risk of infection by this plant pathogen is highest when wheat is grown after maize and infected crop residues are not b...

Plant Science

High-throughput field phenotyping reveals genetic variation in photosynthetic traits in durum wheat under drought

Chlorophyll fluorescence (ChlF) is a powerful non-invasive technique for probing photosynthesis. Although proposed as a method for drought tolerance screening, ChlF has not yet been fully adopted in physiological breeding, mainly due to limitations in high-throughput field phenotyping capabilities. The light-induced fluorescence transient (LIFT) se...

Research using ASReml-R

Plant

Yield dissection models to improve yield: a case study in tomato

Yield as a complex trait may either be genetically improved directly, by identifying QTLs contributing to yield, or indirectly via improvement of underlying components, where parents contribute complementary alleles to different components. We investigated the utility of two yield dissection models in tomato for identifying promising yield componen...

Health

Gut microbiome heritability is nearly universal but environmentally contingent

Relatives have more similar gut microbiomes than nonrelatives, but the degree to which this similarity results from shared genotypes versus shared environments has been controversial. Here, we leveraged 16,234 gut microbiome profiles, collected over 14 years from 585 wild baboons, to reveal that host genetic effects on the gut microbiome are nearly...

Plant Science

Extensive variation within the pan-genome of cultivated and wild sorghum

Sorghum is a drought-tolerant staple crop for half a billion people in Africa and Asia, an important source of animal feed throughout the world and a biofuel feedstock of growing importance. Cultivated sorghum and its inter-fertile wild relatives constitute the primary gene pool for sorghum. Understanding and characterizing the diversity within thi...

Plant Science

Copy number variation of Ppd-B1 is the major determinant of heading time in durum wheat

Heading time is an important adaptive trait in durum wheat. In hexaploid wheat, Photoperiod-1 (Ppd) loci are essential regulators of heading time, with Ppd-B1 conferring photoperiod insensitivity through copy number variations (CNV). In tetraploid wheat, the D-genome Ppd-D1 locus is absent and generally, our knowledge on the genetic architecture un...

Field Crops

Genotypic variation for lodging tolerance in spring wheat: wider and deeper root plates, a feature of low lodging, high yielding germplasm

Plant lodging reduces yield and quality of irrigated and rainfed spring wheats alike. Local and imported germplasm was screened to identify consistently higher-yielding genotypes with low plant lodging for the north-eastern Australian wheat belt. Using field level treatments, such as fertilisation and tactical overhead irrigation to consistently si...

Soil and Tillage

Can legume species, crop residue management or no-till mitigate nitrous oxide emissions from a legume-wheat crop rotation in a semi-arid environment?

Soil emissions of nitrous oxide (N2O) are generally low in Australian semi-arid cropping systems, but can be reduced further by incorporating legumes into cereal-based rotations. We used automated and manual chambers to compare N2O emissions throughout a two-year legume-wheat field experiment. Two pulse crops [lupin (Lupinus angustifolius L.) and f...

Research using CycDesigN

Experimental design

Experimental design in practice: The importance of blocking and treatment structures

Experimental design and analysis has evolved substantially over the last 100 years, driven to a large extent by the power and availability of the computer. To demonstrate this development and encourage the use of experimental design in practice, three experiments from different research areas are presented. In these examples multiple blocking facto...

Computational Statistics

Augmented quasi-sudoku designs in field trials

Augmented designs play an important role in early-generation plant breeding when many varieties are tested and sufficient seeds are unavailable to permit each variety to be replicated more than once. The key idea is to include some replicated varieties to adjust for environmental heterogeneity and provide a good estimate of error. The simplest form...

Field Crops

Factors responsible for yield improvement in new Gossypium hirsutum L. cotton cultivars

The factors responsible for yield progress can be analysed through yield determinant frameworks. These conceptual models consider factors such as crop growth dynamics, partitioning of vegetative and reproductive biomass and yield components to provide insights into the factors responsible for observed genetic gains and opportunities for future gain...

General Research

Nature

SynGAP isoforms exert opposing effects on synaptic strength

Alternative promoter usage and alternative splicing enable diversification of the transcriptome. Here we demonstrate that the function of Synaptic GTPase-Activating Protein (SynGAP), a key synaptic protein, is determined by the combination of its amino-terminal sequence with its carboxy-terminal sequence. 5′ rapid amplification of cDNA ends and pri...

Explore Research Papers

Research using ASReml-SA

READ MORE

Cause of Death: Phytophthora or Flood? Effects of Waterlogging on Phytophthora medicaginis and Resistance of Chickpea (Cicer arietinum)

READ MORE

New residual feed intake criterion for longitudinal data

READ MORE

Climate-Resilient Dairy Cattle Production: Applications of Genomic Tools and Statistical Models

READ MORE

Defining strawberry shape uniformity using 3D imaging and genetic mapping

READ MORE

Genomic Predictions With Nonadditive Effects Improved Estimates of Additive Effects and Predictions of Total Genetic Values in Pinus sylvestris

Research using Genstat

READ MORE

Mineral Fertilization Influences the Growth, Cryptolepine Yield, and Bioefficacy of Cryptolepis sanguinolenta (Lindl.) Schlt.

READ MORE

The effect of perennial and annual wheat forages, fed with or without lucerne, on the fatty acid profile and oxidative status of lamb meat

READ MORE

Automated Monitoring of Panting for Feedlot Cattle: Sensor System Accuracy and Individual Variability

READ MORE

The agronomic and economic viability of innovative cropping systems to reduce Fusarium head blight and related mycotoxins in wheat

READ MORE

High-throughput field phenotyping reveals genetic variation in photosynthetic traits in durum wheat under drought

Research using ASReml-R

READ MORE

Yield dissection models to improve yield: a case study in tomato

READ MORE

Gut microbiome heritability is nearly universal but environmentally contingent

READ MORE

Extensive variation within the pan-genome of cultivated and wild sorghum

READ MORE

Copy number variation of Ppd-B1 is the major determinant of heading time in durum wheat

READ MORE

Genotypic variation for lodging tolerance in spring wheat: wider and deeper root plates, a feature of low lodging, high yielding germplasm

READ MORE

Can legume species, crop residue management or no-till mitigate nitrous oxide emissions from a legume-wheat crop rotation in a semi-arid environment?

Research using CycDesigN

READ MORE

Experimental design in practice: The importance of blocking and treatment structures

READ MORE

Augmented quasi-sudoku designs in field trials

READ MORE

Factors responsible for yield improvement in new Gossypium hirsutum L. cotton cultivars

General Research

READ MORE

SynGAP isoforms exert opposing effects on synaptic strength

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