Double haploid
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Ebook "Progress and opportunities of doubled haploid production" deals with the historical perspectives and the current status of doubled haploid production along with its practical implications in basic and applied research. It highlights various haploid production methods with a comprehensive discussion on their pros and cons, bottlenecks, and embryogenic pathways.
84p manmanthanhla0201 26-02-2024 4 1 Download
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Ebook "Biotechnology of crucifers" despite the recent advances made in the improvement of crucifer crops using conventional breeding techniques, the yield levels and the oil and meal quality could not be improved as expected. The understanding of genetic material (DNA/RNA) and its manipulation by scientists has provided the opportunity to improve crucifers by increasing its diversity beyond conventional genetic limitations.
249p lucchinguyen 28-12-2023 5 2 Download
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Physiological and morphological traits of flag leaf play important roles in determining crop grain yield and biomass. In order to understand genetic basis controlling physiological and morphological traits of flag leaf, a double haploid (DH) population derived from the cross of Huaai 11 × Huadamai 6 was used to detect quantitative trait locus (QTL) underlying 7 physiological and 3 morphological traits at the pre-filling stage in year 2012 and 2013.
10p vinarcissa 21-03-2023 2 1 Download
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Plant height is a prime example of a dynamic trait that changes constantly throughout adult development. In this study we utilised a large triticale mapping population, comprising 647 doubled haploid lines derived from 4 families, to phenotype for plant height by a precision phenotyping platform at multiple time points.
8p vinarcissa 21-03-2023 9 1 Download
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In several fish species homozygous and heterozygous clonal lines have been produced using gynogenetic and androgenetic techniques. These lines are standardized and can be reproduced over generations. In rainbow trout such lines have existed for decades and has become important research tools in genome studies as well as in studies of commercially important traits.
10p vihagrid 30-01-2023 7 3 Download
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Farmed Atlantic salmon are one of the most economically significant global aquaculture products. Early sexual maturation of farmed males represents a significant challenge to this industry and has been linked with the vgll3 genotype.
13p vihagrid 30-01-2023 8 3 Download
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Part 1 of ebook "Plant biology and biotechnology (Volume II: Plant genomics and biotechnology)" provide readers with content about: arabidopsis thaliana - a model for plant research; microalgae in biotechnological application - a commercial approach; application of biotechnology and bioinformatics tools in plant–fungus interactions;... Please refer to the part 1 of ebook for details!
405p langmongnhu 14-12-2022 15 3 Download
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Anther culture response of six wheat genotypes and their F1 crosses was investigated. Results indicated that considerable genetic variation among the tested genotypes was observed. Calli were obtained from all wheat genotypes studied.
10p schindler 30-12-2021 5 0 Download
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Root system architecture, as a complex trait, has gained attention due to climate change and abiotic stress pressure on crops. The incorporation of root traits in breeding objectives may enable new advances in climate-resilient crops. Here, the genetics of the seedling root system architecture in the Synthetic W7984 × Opata M85 Doubled Haploid mapping population was investigated. Three traits at the seedling stage and mature stage root and shoot biomass traits were mapped for quantitative trait loci (QTL) identification.
19p hanthienngao 30-11-2021 11 1 Download
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Anther culture is an effective breeding method for improving desirable traits, since it allows fast achievement of genetically homozygous lines. The present studies were carried out to evaluate the response of flue-cured tobacco anthers for high frequency pollen embryo induction in different culture media, and the effects of colchicine treatment on tobacco chromosome doubling. The results showed that different media caused significant changes in pollen embryo induction, in which the most obvious change was found in B medium with induction rates of 23.28%, 26.64%, and 28.
9p tudichquannguyet 29-11-2021 5 1 Download
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Low temperatures decrease the capacity for biomass production and lead to growth retardation up to irreversible cellular damage in modern maize cultivars. European flint landraces are an untapped genetic resource for genes and alleles conferring cold tolerance which they acquired during their adaptation to the agroecological conditions in Europe.
15p vijeeni2711 24-07-2021 8 0 Download
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Heat tolerance is becoming increasingly important where maize is grown under spring season in India which coincide with grain filling stage of crop resulting in tassel blast, reduced pollen viability, pollination failure and barren ears that causes devastating yield losses.
14p vilichoo2711 23-06-2021 16 1 Download
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Artificial synthesis of octoploid rapeseed double haploid (DH) induction lines Y3380 and Y3560 was made possible by interspecific hybridization and genome doubling techniques. Production of pure lines by DH induction provides a new way to achieve homozygosity earlier in B.napus.
13p vijichea2711 28-05-2021 19 1 Download
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Microspore embryogenesis is potentially the most effective method of obtaining doubled haploids (DH) which are utilized in breeding programs to accelerate production of new cultivars.
24p vijichea2711 28-05-2021 5 1 Download
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Two-line hybrid wheat system using thermo-photo sensitive genic male sterility (TPSGMS) is currently the most promising approach for wheat heterosis utilization in China. However, during past 20 years only few TPSGMS lines were developed in hybrid wheat breeding, which has been the main limiting factor to create heterotic hybrids.
10p vijichea2711 28-05-2021 10 1 Download
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The aim of this study was to develop a culture medium for the production of double haploids from local chilli varieties in Vietnam which provides an opportunity to shorten the breeding cycle and fix agronomic traits.
8p nguaconbaynhay11 16-04-2021 11 2 Download
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Five different emasculation methods viz. standard technique for wheat x maize crosses, early pollinations on non-emasculated spikes, clipped glume facilitated emasculation, plastic bag emasculation and hot water emasculation were compared. Clipped glume facilitated emasculation resulted in lowest caryopses formation frequency. Early pollination on non-emasculated spikes gave reasonably high embryo formation frequency while omitting tedious emasculation steps.
8p nguaconbaynhay7 15-08-2020 15 1 Download
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Two field experiments were conducted at Hyderabad and Aurangabad in India under water stress at flowering and well watered condition during the rabi season (2018). The objective of the study was to assess the drought tolerance traits in maize DHL’s x Tester (Top cross hybrids).
10p caygaocaolon6 30-07-2020 7 1 Download
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Pyropia haitanensis is one of the most economically important mariculture crops in China. A high-density genetic map has not been published yet and quantitative trait locus (QTL) mapping has not been undertaken for P. haitanensis because of a lack of sufficient molecular markers.
11p vihashirama2711 21-05-2020 16 1 Download
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Doubled haploid (DH) lines produced via in vivo haploid induction have become indispensable in maize research and practical breeding, so it is important to understand traits characteristics in DH and its corresponding haploids which derived from each DH lines.
15p vihashirama2711 21-05-2020 12 0 Download