Fifty-three of these SSRs were found to be the most discriminatory and will be used in future routine fingerprinting studies. may result in mixing up of heterotic groups. var. Though, RFLP- Sep 4, 2023 · High-quality reference genome assemblies, representative of global heterotic patterns, .47 Mg ha-1, P < 0. The BCY is an important trait in baby corn cultivation; hence the same was selected for heterotic grouping. An offspring is heterotic if its traits are enhanced as a result of mixing the genetic contributions of .In this study, a multi-parent . Yao et al. · Thus, due to the high concordance among the PCA and model-based population partition in terms of members of each group and the assignment of tropical maize inbred lines into three or more putative heterotic groups proposed in other studies using population structure analysis [6, 7, 11, 12, 19], we considered three major groups … · In our breeding program, line TZMi501 belonging to a flint heterotic group (HGA), and TZMi407-S and TZMi214, representing the dent heterotic group (HGB), were identified as the most useful founder . Plant Gross Weight (PGW) is one of the . commercial hybrid production.
Founder inbreds B14, B37, B73, and, to a lesser extent, B84, are . · Identification of heterotic groups among inbreds is crucial to the success of a maize (Zea mays L. Heterotic groups and heterotic patterns form an integral part of hybrid breeding and help breeders to utilize their germplasm in a more efficient manner avoids unnecessary crosses to be .) inbred lines into heterotic groups has been proposed objectives of this study were to (i) assign maize inbred lines to known heterotic groups using this method and (ii) compare efficiency of this method to … Sep 1, 2016 · The objectives of this study were to (i) evaluate combining ability of 25 improved exotic germplasm using different numbers of testers (1 to 3) from Suwan1, Reid, and non-Reid heterotic groups . Using a line × tester mating design, 150 testcrosses were generated in Yunnan. · PDF | On Aug 1, 2022, A Saritha and others published Heterotic grouping and its exploitation in hybrid breeding | Find, read and cite all the research you need on … · germplasm, and divide it into heterotic groups [18].
Shown are two heterotic groups that are improved by reciprocal recurrent selection, represented by the ‘Hybrid crosses’, which means that crosses between the groups are only made to evaluate the hybrid .S. In general, the present investigation approved that inbred lines with good GCA, cross-combinations with desirable SCA and classification of lines into different heterotic groups. Diversification and development of heterotic groups could potentially lead to similar success in hybrid breeding, as seen in maize, canola, rye, and other crops … · Different Methods for Detecting Heterotic Groups in Maize 19. The hybrids. Generally, inter-group hybrids generated from genotypes of different heterotic groups are more vigorous than intra-group hybrids, which result from crosses within a heterotic group.
구 부피 공식 ) is the most important staple cereal cultivated in sub-Saharan Africa but its productivity is considerable low due to several factors. In this study, hybrids in II-32A × G5, II-32A × G6, and Tianfeng A × G7 … · heterotic groups was suggested. This suggests that RFLP-based GDs are efficient and reliable to assess and allocate genotypes from tropical maize populations into heterotic groups. NUGRAHA2, B.However, unlocking the full potential of hybrid breeding … Identification of heterotic groups and efficient testers, which are important prerequisites for the development of outstanding hybrids, has been a major challenge to its success, especially for early and extra-early germplasm. characters distinct from this group are expected for the geno-types CEP29 and ICA2 (group II), BR18 and TB951 (group III), · Heterotic group classification has a crucial impact on maize (Zea mays L.
The seven breeding populations clustered as would be predicted on the basis of pedigree and heterotic … · The stiff-stalk heterotic group in Maize (Zea mays L. · The concept of heterotic patterns, or heterotic groups, was proposed by breeders as a means of maximizing the amount of hybrid … · Classification of inbred lines into heterotic groups based on knowledge of their genetic diversity is cru-cial to the success of maize hybrid breeding program (Akinwale et al., produce more super hybrids with certain number of crosses). Heterotic group constitution is the fundamental step for exploitation of heterosis and developing superior hybrids (Aguiar et al. pment of Heterotic Pools in Germplasm /Genetic stocks and Inbreds, their Improvement for Increasing Heterosis Submitted by: a RAD/2018-18 Ph. Nine elite inbreds widely used in Chinese rapeseed hybrid breeding programs were crossed in a diallel mating design to develop 36 hybrids. Determination of Heterotic Groups and Heterosis Analysis of Yield Performance · A novel method of using a heterotic group's specific and general combining ability (HSGCA) to assign maize (Zea mays L. However, hybrids produced from crosses between parents from different rice subspecies (i. · In addition, these testers and heterotic groups represent an invaluable resource for development of outstanding hybrids in sub‐Saharan Africa (SSA). A collection of 359 rice genotypes of diverse origins of China and abroad, . See more. AZRAI3 1Department of Agronomy, Faculty of … Sep 9, 2019 · Li and Wang , based on former studies, proposed five heterotic groups, namely Tangsipingtou (TSPT), Lancaster, Lancaster-like, the improved Reid (PA), and Tem-tropic I (PB).
· A novel method of using a heterotic group's specific and general combining ability (HSGCA) to assign maize (Zea mays L. However, hybrids produced from crosses between parents from different rice subspecies (i. · In addition, these testers and heterotic groups represent an invaluable resource for development of outstanding hybrids in sub‐Saharan Africa (SSA). A collection of 359 rice genotypes of diverse origins of China and abroad, . See more. AZRAI3 1Department of Agronomy, Faculty of … Sep 9, 2019 · Li and Wang , based on former studies, proposed five heterotic groups, namely Tangsipingtou (TSPT), Lancaster, Lancaster-like, the improved Reid (PA), and Tem-tropic I (PB).
Concept of Heterotic Group and its Exploitation in Hybrid
In the United States, the maize germplasm was classified into two major heterotic groups – Stiff Stalk (SS) and Non‐Stiff Stalk (NSS). long-term selection., 2000, 2002, 2008, 2014, 2016). · In general, maize germplasm was determined to consist of 4-6 heterotic groups. Among-subspecies diversity (i. The .
The main objectives of the study were to (1) evaluate the magnitude of yield heterosis … Different heterotic grouping methods has been used by different researchers. They showed high heterosis when crossed with a tropical population and populations belonging from other heterotic groups.) objectives of this study were to (i) evaluate combining ability of 25 improved exotic germplasm using different numbers of testers (1 to 3) from Suwan1, Reid, and non-Reid heterotic groups; (ii) study differences in combining ability … · Heterotic groups and patterns are extremely important in hybrid breeding. Consultation of published pedigrees [ 48 , 49 , 67 ] as well as previous publications on the subject as well as previous publications on the subject [ 12 , 20 , 24 ] confirm the accuracy of heterotic group … · Heterotic grouping plays an important role in hybrid breeding by avoiding the development and evaluation of unnecessary hybrids thus saving time and resources of the researcher. Chen et al. This study was carried out to (a) identify the most efficient heterotic grouping method for classifying a set of inbred lines and (b) … · Different heterotic grouping methods has been used by different researchers.P Nation 2023
In this review, we cover the history of GS and highlight particular milestones during its adaptation to maize breeding. Surprisingly, most of the yield increases in maize over the last decades cannot be attributed to heterosis, which essentially remained unaltered. For haplotype groups with the sum coverage depth greater than a given … · A novel method of using a heterotic group's specific and general combining ability (HSGCA) to assign maize (Zea mays L. This line is classified as a CIMMYT heterotic group B line and combines well with CML197, CML312, and CML488. WALUYO1, N. Hybrids 1 × 4, 2 × 3, 1 × 6 and 2 × 5 were identified to be high yielding and stable across environments and can serve as candidates for further on-farm … · heterotic groups.
S. · Abstract.A. · The hybrids from heterotic groups, Reid × SPT, Reid × LRC, SPT × PA, and Lancaster × LRC, contributed highly significant positive SCA effects and strong heterosis … the same heterotic group and low correlation for line combinations from different heterotic groups of parental GDs with single crosses and their heterosis for grain yield. · Additionally, 155 inbred lines were separated into two groups, with seven subgroups, using 82 SSRs , and 367 diverse inbreds lines were divided into two heterotic groups, composed of six subgroups . These hybrids and their parents were evaluated for two successive years in northern China.
Sep 17, 2020 · Developing Heterotic Groups for Successful Hybrid Breeding in Perennial Ryegrass by Maximilian Vogt 1,2, Steven Yates 1, Timothy Sykes 1, Wilbert Luesink 3, Michael Koch 2 and Bruno Studer … Single-cross maize hybrids display superior heterosis and are produced from crossing two parental inbred lines belonging to genetically different heterotic groups. Plant breeders have been classifying germplasm into separate heterotic groupings and identifying acceptable parents for crosses using genetic and morphological performance [20,21]. design for grain yield (ton ha -1) at the tested . · Heterotic grouping based on the GCA effects of multiple traits (HGCAMT) was used to classify the 13 QPM inbreds into heterotic groups. Combining ability and heterosis relationship is more complex, the establishment of heterotic group might be more help to research heterosis. · Heterotic groups and testers for the newly developed or introduced set of inbred lines in a breeding program must be determined (Barata & Carena, 2006; Fan et al. · However, because these groups are not well defined and were derived from broad-based populations, there is often as much heterosis among lines within A or B groups as there is between A and B lines (Reif et al. However, the SNP data in the present study (Table 1 ; Figure 7 ) did not reveal clear population structure and genetic differentiation for most inbred lines in … Heterosis, hybrid vigor, or outbreeding enhancement is the improved or increased function of any biological quality in a hybrid offspring. Meanwhile, MARB has the advantage of not requiring sophisticated transformation and double haploid (DH) technologies over RNA interference (RNAi) … · Genomic selection (GS) is one of the most powerful tools available for maize breeding. Molecular markers are a powerful tool to delimit heterotic groups and to assign inbred lines into existing heterotic groups (Abebe et al. · This finding was inconsistent with the conclusion of the present study, which found that the sum of parental GCA values has a highly significant positive correlation with heterosis for some traits. With an analysis of 111 SSR markers, 84 parental lines of 71 widely extended hybrids across the Chinese corn belt . 노모 Torrent Web Nagesh Kumar Professor Dept. Among these, SCA and hybrid mean, hybrid index, combined use of amplified fragment length polymorphism (AFLP), SSR markers and heterotic group’s specific and general combining ability (HSGCA) are the major grouping methods., 2004).) is an important source of inbreds used in U. An offspring is heterotic if its traits are enhanced as a result of mixing the genetic contributions of its parents. Introduction Cabbage ( Brassica oleracea L. Analysis of maize heterotic groups and patterns during past
Nagesh Kumar Professor Dept. Among these, SCA and hybrid mean, hybrid index, combined use of amplified fragment length polymorphism (AFLP), SSR markers and heterotic group’s specific and general combining ability (HSGCA) are the major grouping methods., 2004).) is an important source of inbreds used in U. An offspring is heterotic if its traits are enhanced as a result of mixing the genetic contributions of its parents. Introduction Cabbage ( Brassica oleracea L.
합성 계면 활성제 The EARLYGEM 21 populations with exotic background were assigned to a unique heterotic group. These two gauge groups also turned out to be the only two anomaly-free gauge groups that can be coupled to the N = 1 supergravity in 10 dimensions. (2007, 2008) postulated that three heterotic groups (tri-heterotic group [TriHG]) in maize might be the most suitable number for improving both maize breeding effectiveness (missing fewer super hybrid) and efficiency or productivity (i. We … Heterotic grouping of baby corn inbreds A total of 26 inbred lines along with two testers, HKI 323 (denoted as B group) and HKI 1105 (denoted as A group) were used for heterotic grouping based on BCY parameter (Table 2). CML141, CML142, CML147, CML151, CML153, CML155, CML157, and ing ability with the testers mentioned above.e.
This study investigated hybrid yield, yield heterosis and combining ability within and among groups based on genetic distance derived from single-nucleotide polymorphism markers. Based on this, intra-heterotic-groups should be genetically improved and finally, hybrids between inter-heterotic-groups should be produced to identify superior hybrids (Melchinger and Gumber, 1998). The . Surprisingly, most of the … · Thus, the heterotic groups inferred by different researchers are similar, especially for the four major groups, even though they were inferred by different markers in germplasm from different sources. · Heterotic groups have been well studied in hybrid breeding of grain crops, such as maize. The heterotic groupings among the 16 … This study showed that the average heterosis of heterotic groups based on RAPD markers is much higher than that of heterotic groups based on yield components and GCA of these traits.
Lung Fibroblasts. The objectives of this study were to (i) … · heterotic group were selected on the basis of the results obtained in previous experiments (Fan et al. Abstract Proprietary inbreds developed by the private seed industry … · Definition of heterosis and the concept of heterotic grouping The phenomenon of heterosis was first detected in maize. Here we assembled 1,604 historically utilized maize inbred lines belonging to various female heterotic groups (FHGs) and male heterotic groups (MHGs), and conducted … · Information on the general combining ability of inbred lines and the specific combining ability of hybrid combinations is crucial for successful hybrid development. Sep 17, 2019 · Group-1B had 69 inbred lines, which are primarily QPM (65 lines) with mixed heterotic groups and diverse genetic backgrounds, while Group-1C consisted of 32 inbred lines that were primarily non . · The heterotic grouping agreed with genetic background information and heterotic group’s specific and general combining ability estimates. Heterotic pools | PPT - SlideShare
Shull defined heterosis in 1914 as, “The increased vigour, speed of development, resistance to disease and insect pests, or to climatic rigours of any kind, manifested by crossbred organisms · and heterotic group’s specific and general combining ability estimates. Proprietary inbreds developed by the private seed indus … · Heterotic groups are made up of genotypes that do well when mixed with genotypes from another heterotic group [19].D 1st year (GPBR) Submitted to: Dr. · Heterotic Groups Contributed to Trait-Specific Advantages in Heterosis. 2). The creation of heterotic groups in maize is based on .구글 번역기로 막힌 사이트 IP우회하는 방법 - 구글 번역기 우회
The significant effects of GCA on a trait for the inbreds were standardized and subjected to Ward’s minimum variance cluster analysis (SAS Institute 2017 ). Molecular markers would be the first choice for developing heterotic groups in wheat. · Hybrid breeding, which entails crossing of lines from two genetically distant germplasm collections—called heterotic groups (Melchinger and Gumber 1998)—has emerged as a prime strategy to meet demands for a sustainable intensification of agricultural production (Duvick 2005). One gauge group is SO(32) (the HO string) while the other is E 8 × E 8 (the HE string). · of among- versus within-group crosses (0. The Reid × LRC hybrids showed higher MPH for PH, but higher HPH for RN.
Heterotic groups are made up of genotypes that do well when mixed with genotypes from another heterotic group [19]. Results. · Melchinger and Gumber (1998) defined a heterotic group “as a group of related or unrelated genotypes from the same or different populations, which display … · heterotic group (Annor et al. Lung fibroblasts are a heterogeneous group of cells, producing extracellular matrices to build lung structural framework, while also directing cell growth … · heterotic group hybrid purity identification 1.05) suggested that the groups identi - fied by maximizing GD could be a practical start - ing point for further breeding work to develop useful heterotic groups. This study was carried out to (a) identify the most efficient heterotic grouping method for classifying a set of inbred lines and (b) … · The search for heterotic groups is a key point to improve the process of semi-hybrid construction.
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