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heterosis, etc ; genetic improvement; ideotypes; rapeseed; Show all 4 Subjects
Abstract:
... Over the past few years, rapeseed yields have been considerably lower than those of cereal crops, and progress has been slow due to its limitations for genetic improvement. Here, we propose a comprehensive strategy to consider the interactions between genetics, management practices, and environment, concentrating on using ideotype and heterosis to maximize yield. ...
heterosis, etc ; Cucumis; cucumbers; genes; genetic improvement; Himalayan region; Show all 6 Subjects
Abstract:
... Genetic improvement of crop plants is a continuous process and plant breeders continuously strive for developing new varieties, which are high yielding and superior to the existing ones. The success of a breeding programme lies in the choice of appropriate parents and the breeding method followed. Therefore, the experiment was carried out involving gynoecious lines in cucumber at Palampur and Baja ...
heterosis, etc ; agroecology; botanists; corn; isolation techniques; peasantry; selfing; yields; Show all 8 Subjects
Abstract:
... The Industrial Revolution led to replacing peasant mass selection by individual selection. In 1836 John Le Couteur on the suggestion of the Spanish botanist Mariano LaGasca codified the isolation method, empirically practiced since the early 19ᵗʰ century. It consists in replacing varieties or populations by “copies” of a better plant – by a (quasi) clone. It requires plants that “breed true to typ ...
heterosis, etc ; genome; genomics; hybrids; plant biology; population genetics; transcriptomics; Show all 7 Subjects
Abstract:
... Heterosis (or hybrid vigor) has been widely used in crop seed breeding to improve many key economic traits. Nevertheless, the genetic and molecular basis of this important phenomenon has long remained elusive, constraining its flexible and effective exploitation. Advanced genomic approaches are efficient in characterizing the mechanism of heterosis. Here, we review how the omics approaches, includ ...
heterosis, etc ; analysis of variance; bioethanol; biomass production; ethanol; ethanol production; Show all 6 Subjects
Abstract:
... Sorghum hybrids can provide enhanced bioethanol yield if genetically complementary parents and progenies are developed using efficient crossing and selection methods. The objective of this study was to determine the combining ability of sweet stem sorghum genotypes, and assess heterosis among F1 hybrids for ethanol production and associated traits. Eight sweet stem sorghum lines and four testers w ...
heterosis, etc ; cultivars; females; genetic variation; hybrids; males; markets; France; Netherlands; Spain; Show all 10 Subjects
Abstract:
... In asparagus, current cultivars are mostly hybrids (known as clonal hybrids) derived from crosses between two parents, female and male, with good combining ability. Despite the fact that clonal hybrids have been obtained for more than 40 years, studies of the heterosis and combining abilities involved are limited. Similarly, there are no published studies regarding the association between genetic ...
José Williano de Souza Farias; Jonathan Said Tejeda Orella; Edgar dos Santos Batista; Rafael Cruz Cordeiro; Adriana Rodrigues Passos; Luiz Cláudio Costa Silva
heterosis, etc ; Physalis angulata; diallel analysis; evolution; genetic variation; plant height; Brazil; Show all 7 Subjects
Abstract:
... Physalis angulata L. is an American species with edible fruits that stands out for having high nutritional and pharmaceutical value. The species is found in almost the entire Brazilian territory but the consumption of its fruits is not widespread. The aim of this work was to evaluate the existence of heterosis and heterobeltiosis for morphoagronomic descriptors, to estimate correlations, and to se ...
Cyril Diatta; Thierry Klanvi Tovignan; Eyanawa Atchozou Akata; Beatrice Elohor Ifie; Mame P. Sarr; César Bassene; Ousmane Aidara; Pierre Alfred Ndione; Malick Gackou; Anicet Georges Bruno Manga; Eric Yirenkyi Danquah; Samuel Kwame Offei; Ndiaga Cisse
heterosis, etc ; Sorghum bicolor; biotechnology; farmers; genes; grain yield; hybrids; males; Senegal; Show all 9 Subjects
Abstract:
... Increasing sorghum production per unit area in the farmer’s field by developing high yielding tannin-free and grain mold tolerant varieties in Senegal is the goal of the present study. Line × tester mating design was used to cross eleven tannin-free non-photoperiodic male fertile sorghum varieties with two male-sterile A-lines to produce 22 F₁ hybrids. These hybrids along with the thirteen parents ...
heterosis, etc ; Solanum lycopersicum; fruit set; fruit weight; heat stress; heat tolerance; Show all 6 Subjects
Abstract:
... This present study was undertaken to (i) assess the performance of hybrids under heat stress, (ii) determine the combining abilities of parental lines and their crosses, and (iii) identify the most efficient heterotic grouping method to classify the lines. We evaluated two sets of hybrids generated using the NC II design and a partial diallel mating design. Most crosses outperformed their parents ...
heterosis, etc ; Solanum tuberosum; cultivars; diploidy; genetic improvement; potatoes; progeny; research; tetraploidy; Show all 9 Subjects
Abstract:
... Genetic improvement of yield in potato has lagged behind that of other major crops over the past century, prompting the search for alternative breeding methods that may accelerate the development of improved cultivars. One proposed strategy has been to identify and use heterotic groups to increase the yield and consistency of clones produced by breeding programs. To investigate this approach, hybr ...
heterosis, etc ; Cucumis sativus; cucumbers; genetic distance; genomics; horticulture; hybrids; models; prediction; Show all 9 Subjects
Abstract:
... The heterosis prediction has an essential role in hybrid breeding. The prediction of heterosis is highly dependable upon the selection of an efficient method, however, fewer methods have been used till date which lack or unable to explain several important aspects in heterosis prediction. Thus, in our experiment, we tried to explore a new heterosis prediction system based on genomic prediction, in ...
heterosis, etc ; Zea mays; corn; data collection; fractionation; hybrids; landscapes; seedlings; transcriptome; transcriptomics; Show all 10 Subjects
Abstract:
... Heterosis, the phenomenon in which hybrids outperform their parents, has been utilized in maize (Zea mays L.) for over 100 years. To provide a more complete understanding of heterosis, we collected a comprehensive transcriptome and translatome dataset on seedling leaves for B73, Mo17, and their F₁ hybrid, which provided a dynamic landscape of transcriptomic and translatomic variation in maize. Alt ...
heterosis, etc ; DNA; Passer domesticus; conservation genetics; genomics; life history; physiological state; telomeres; Show all 8 Subjects
Abstract:
... Inbreeding can have negative effects on survival and reproduction, which may be of conservation concern in small and isolated populations. However, the physiological mechanisms underlying inbreeding depression are not well-known. The length of telomeres, the DNA sequences protecting chromosome ends, has been associated with health or fitness in several species. We investigated effects of inbreedin ...
heterosis, etc ; auxins; biosynthesis; cabbage; chromosomes; cultivars; dissection; females; genes; horticultural crops; phenotype; Show all 11 Subjects
Abstract:
... Cabbage has significant heterosis and most commercial cultivars are hybrids. To exploring genetic basis of cabbage heterosis and promote cabbage heterosis utilization, we constructed two populations by crossing 100 DH lines derived from a cabbage hybrid 01–20 × 96–100 with two female parents. Hybrids exhibited different extents of heterosis, the mean value of economic yield was 2.6 times bigger th ...
Brian A. Tangen; Sheel Bansal; Joanna R. Freeland; Steven E. Travis; Jennifer D. Wasko; Terence P. McGonigle; L. Gordon Goldsborough; Keira Gow; Joy E. Marburger; Jacob A. Meier
heterosis, etc ; administrative management; habitats; microsatellite repeats; wetlands; North America; Prairie Pothole region; Show all 7 Subjects
Abstract:
... The Prairie Pothole Region (PPR) of North America has experienced extreme changes in wetland habitat due to proliferation of invasive plants. Typha × glauca is a highly competitive hybrid between native T. latifolia and non-native T. angustifolia, and it is likely the predominant taxon in PPR wetlands. Genetics-based studies are limited, and distributions are poorly known for the first-generation ...
heterosis, etc ; Capsicum annuum; genomics; normalized difference vegetation index; pepper; phenotype; reflectance; wavelengths; Show all 8 Subjects
Abstract:
... Compared with the substantial amount of genomics data generated in recent years, phenotypic data availability for crops is largely restricted in spectrum and quantity. High-throughput phenotyping (HTP) platforms have been developed to overcome this limitation, not only by enhancing the speed and accuracy of phenotyping but also by expanding the range of evaluable traits through integration of vari ...
heterosis, etc ; Striga; Zea mays; corn; hybrids; synthetic products; testcrosses; tropical agriculture; Nigeria; Show all 9 Subjects
Abstract:
... Identifying efficient testers for separating maize (Zea mays L.) inbred lines into heterotic groups can facilitate the development of superior hybrids. Striga-resistant yellow-maize inbred lines developed at the International Institute of Tropical Agriculture (IITA) do not have well established heterotic groups. This study was conducted to identify efficient testers for classifying yellow-maize in ...
heterosis, etc ; analysis of variance; eggplants; food quality; fruit yield; fruits; genes; heritability; landraces; Show all 9 Subjects
Abstract:
... Genetic progress in quantitative traits can be improved by understanding how genes interact and estimating the consequences of combining abilities. As a result, a randomized block design with three replications was used to conduct forty crossings using a line X tester mating design with ten lines and four testers. All of the qualities were shown to be highly variable based on the ANOVA (analysis o ...
heterosis, etc ; Oryza rufipogon; Oryza sativa; agronomy; asexual reproduction; dissection; introgression; irrigation; wild rice; Show all 9 Subjects
Abstract:
... The stem branch trait of the stolon enables the common wild rice to produce new individuals through vegetative reproduction habit. In order to understand the genetic mechanism of stem branch character, we developed introgression lines (ILs) with the irrigated rice variety Yundao1 (YD1, Oryza sativa) as the recipient parent and Yuanjiang common wild rice (YJCWR, O. rufipogon) as the donor parent fo ...
heterosis, etc ; agricultural research; analysis of variance; genetic analysis; interspecific hybridization; oilseeds; seed yield; Show all 7 Subjects
Abstract:
... The combining ability and manifestation of heterosis within and among the species of oilseed brassicas (B. campestris, B. napus and B. juncea) were studied for yield and yield related traits in 12F₁ combinations. All crosses (12F₁) along with their parents (7 parents) were sown in randomized complete block design (RCBD) with three replications. The analysis of variance showed extensive variability ...