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Plant Breeding and Genomics News
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Relevance of the genetic structure of natural populations, and sampling and classification approaches for conservation and use of wild crop relatives: potato as an example - Botany

Relevance of the genetic structure of natural populations, and sampling and classification approaches for conservation and use of wild crop relatives: potato as an example - Botany | Plant Breeding and Genomics News | Scoop.it

"Knowledge of reproductive biology of plant populations is of utmost importance to understanding their natural morphological and molecular variability and to developing appropriate methodological approaches for sampling, classifying, and ex situ multiplying to conserve gene frequencies for basic and applied purposes."

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PLOS Pathogens: Coevolution and Hierarchical Interactions of Tomato mosaic virus and the Resistance Gene Tm-1

PLOS Pathogens: Coevolution and Hierarchical Interactions of Tomato mosaic virus and the Resistance Gene Tm-1 | Plant Breeding and Genomics News | Scoop.it

Evidence of possible coevolution between a virus and resistance locus in tomato.

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Anther extrusion and plant height are associated with Type I resistance to Fusarium head blight in bread wheat line ‘Shanghai-3/Catbird’

"Fusarium head blight (FHB) is a destructive wheat disease of global importance. Resistance breeding depends heavily on the Fhb1 gene. The CIMMYT line Shanghai-3/Catbird (SHA3/CBRD) is a promising source without this gene. A recombinant inbred line (RIL) population from the cross of SHA3/CBRD with the German spring wheat cv. Naxos was evaluated for FHB resistance and related traits in field trials using spray and spawn inoculation in Norway and point inoculation in China. After spray and spawn inoculation, FHB severities were negatively correlated with both anther extrusion (AE) and plant height (PH)."

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SmartGrain: High-throughput phenotyping software for measuring seed shape through image analysis.

SmartGrain: High-throughput phenotyping software for measuring seed shape through image analysis. | Plant Breeding and Genomics News | Scoop.it

Free software for seed phenotyping, similar to the Tomato Analyzer.

 

Takanari Tanabata, Taeko Shibaya, Kiyosumi Hori, Kaworu Ebana, and Masahiro Yano, "SmartGrain: High-throughput phenotyping software for measuring seed shape through image analysis", Plant Physiology, doi: http://dx.doi.org/10.1104/pp.112.205120

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PLOS ONE: Design of New Genome- and Gene-Sourced Primers and Identification of QTL for Seed Oil Content in a Specially High-Oil Brassica napus Cultivar

PLOS ONE: Design of New Genome- and Gene-Sourced Primers and Identification of QTL for Seed Oil Content in a Specially High-Oil Brassica napus Cultivar | Plant Breeding and Genomics News | Scoop.it

"There are now various rapeseed cultivars in nature that differ in their seed oil content because they vary in oil-content alleles and there are high-oil alleles among the high-oil rapeseed cultivars. For these experiments, we generated doubled haploid (DH) lines derived from the cross between the specially high-oil cultivar zy036 whose seed oil content is approximately 50% and the specially low-oil cultivar 51070 whose seed oil content is approximately 36%."

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Mapping & QTL Analysis - eXtension Learning Lessons

Mapping & QTL Analysis - eXtension Learning Lessons | Plant Breeding and Genomics News | Scoop.it

Take a look at Plant Breeding and Genomics updated curriculum page for mapping and QTL analysis.

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Trends in Plant Science - Plant science: the key to preventing slow cadmium poisoning

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Genome sequence of the button mushroom Agaricus bisporus reveals mechanisms governing adaptation to a humic-rich ecological niche

Scientists report in PNAS the genome sequence of A. bisporus along with comparative transcriptomics of mycelium grown on different compost media.

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Toward allotetraploid cotton genome assembly: integration of a high-density molecular genetic linkage map with DNA sequence information

"Cotton is the world's most important natural textile fiber and a significant oilseed crop. Decoding cotton genomes will provide the ultimate reference and resource for research and utilization of the species."

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Our Daily Bread; The Essential Norman Borlaug: Noel Vietmeyer: Amazon.com: Kindle Store

It is no longer free, but a download of the biography of, Norman Borlaug, a Nobel prize-winning plant breeder is now only $.99.

 

"Our Daily Bread; The Essential Norman Borlaug: Noel Vietmeyer: Amazon.com: Kindle Store..."

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Wild rice gene gives yield boost

Wild rice gene gives yield boost | Plant Breeding and Genomics News | Scoop.it

"A gene from wild Indian rice plants can significantly raise the yield of common varieties in nutrient-poor soils by boosting root growth."

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R. Paul Thompson: Seeds of Hope for the Dry Midwest---and the World

R. Paul Thompson: Seeds of Hope for the Dry Midwest---and the World | Plant Breeding and Genomics News | Scoop.it

Critism of the Union of Concerned Scientist Report, High and Dry

 

"In The Wall Street Journal, R. Paul Thompson writes that Monsanto's DroughtGard corn and other genetically modified food may also be an environmental boon."

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PLOS ONE: Transgenic Resistance Confers Effective Field Level Control of Bacterial Spot Disease in Tomato

PLOS ONE: Transgenic Resistance Confers Effective Field Level Control of Bacterial Spot Disease in Tomato | Plant Breeding and Genomics News | Scoop.it

Genetic modification improves tomato

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BMC Genetics | Abstract | Detection of nitrogen deficiency QTL in juvenile wild barley introgression lines growing in a hydroponic system

"In this report we studied the genetic regulation of juvenile development of wild barley introgression lines (S42ILs) under two contrasting hydroponic nitrogen (N) supplies."

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Combining bulk segregation analysis and microarrays for mapping of the pH trait in melon

"The availability of sequence information for many plants has opened the way to advanced genetic analysis in many non-model plants. Nevertheless, exploration of genetic variation on a large scale and its use as a tool for the identification of traits of interest are still rare. In this study, we combined a bulk segregation approach with our own-designed microarrays to map the pH locus that influences fruit pH in melon. Using these technologies, we identified a set of markers that are genetically linked to the pH trait. Further analysis using a set of melon cultivars demonstrated that some of these markers are tightly linked to the pH trait throughout our germplasm collection. These results validate the utility of combining microarray technology with a bulk segregation approach in mapping traits of interest in non-model plants."

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Innovations in Agriculture - Feature in the WSJ

Innovations in Agriculture - Feature in the WSJ | Plant Breeding and Genomics News | Scoop.it

The Wall Street Journal focuses on topics of agriculture and breeding.

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Comparative analysis of genome composition in Triticeae reveals strong variation in transposable element dynamics and nucleotide diversity - Middleton - The Plant Journal - Wiley Online Library

Comparative analysis of genome composition in Triticeae reveals strong variation in transposable element dynamics and nucleotide diversity - Middleton - The Plant Journal - Wiley Online Library | Plant Breeding and Genomics News | Scoop.it

"A 454 sequencing snapshot was utilised to investigate the genome composition and nucleotide diversity of transposable elements for several Triticeae taxa, including T. aestivum, H. vulgare, H. spontaneum, S. cereale together with relatives of the A, B and D genome donors of wheat, T. urartu (A), Ae. speltoides (S), and Ae. tauschii (D). Additional A genome containing taxa T. monococcum and its wild relative T. boeoticum were also included. The main focus of the analysis was on the genomic composition of transposable elements (TEs) as these make up at least 80% of the overall genome content. Although more than 200 TE families were identified in each species, approximately 50% of the overall genome was comprised of 12-15 TE families."

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PLOS ONE: Soil Nitrogen Availability and Plant Genotype Modify the Nutrition Strategies of M. truncatula and the Associated Rhizosphere Microbial Communities

PLOS ONE: Soil Nitrogen Availability and Plant Genotype Modify the Nutrition Strategies of M. truncatula and the Associated Rhizosphere Microbial Communities | Plant Breeding and Genomics News | Scoop.it

"The aim of this work was to study the effect of both N availability and plant genotype on the plant associated rhizosphere microbial communities, in relation to the nutritional strategies of the plant-microbe interactions, for six contrasted Medicago truncatula genotypes."

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BMC Bioinformatics | Full text | BirdsEyeView (BEV): graphical overviews of experimental data

"Analyzing global experimental data can be tedious and time-consuming. Thus, helping biologists see results as quickly and easily as possible can facilitate biological research, and is the purpose of the software we describe."

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PLOS ONE: Indirect Effect of a Transgenic Wheat on Aphids through Enhanced Powdery Mildew Resistance

PLOS ONE: Indirect Effect of a Transgenic Wheat on Aphids through Enhanced Powdery Mildew Resistance | Plant Breeding and Genomics News | Scoop.it
PLOS ONE: an inclusive, peer-reviewed, open-access resource from the PUBLIC LIBRARY OF SCIENCE. Reports of well-performed scientific studies from all disciplines freely available to the whole world.
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Can heterotrimeric G proteins help to feed the world?

Trends in Plant Science

 

"Recently, two important yield quantitative trait loci (QTLs), GS3 and DEP1, have been cloned in rice (Oryza sativa). Although their relationship has not been established in the ‘rice literature’, a recent report identified them as heterotrimeric G protein γ subunits. This identification has profound consequences for our current understanding of both QTLs and the plant G protein signaling network and this opinion article discusses how manipulation of G protein signaling may lead to yield improvements in rice and other crop species. Finally, a mechanistic model to explain the seemingly conflicting phenotypes produced by different GS3 and DEP1 alleles is proposed."

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USDA Approves Roundup Ready Sugar Beets

Nature Biotechnology reports October 10, 2012 that the UDSA has fully approved Monsanto's commercial cultivation of this variety.

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Plant science: The chestnut resurrection

Plant science: The chestnut resurrection | Plant Breeding and Genomics News | Scoop.it

Review of progress in breeding blight resistant chestnuts

 

"Once king of eastern forests, the American chestnut was wiped out by blight. Now it is poised to rise again."

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Models and tests of optimal density and maximal yield for crop plants

Models and tests of optimal density and maximal yield for crop plants | Plant Breeding and Genomics News | Scoop.it

This article provides a mathematical model to predict optimal planting density.

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High and Dry: Why Genetic Engineering Is Not Solving Agriculture's Drought Problem in a Thirsty... | UCSUSA

High and Dry: Why Genetic Engineering Is Not Solving Agriculture's Drought Problem in a Thirsty... | UCSUSA | Plant Breeding and Genomics News | Scoop.it

This is an interesting report on the progress of genetic modifications to improve drought resistance.

 

"Droughts can be devastating to farmers and food supplies. The biotech industry has touted the potential of genetic engineering to reduce the impact of drought."

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