Tìm thấy 20+ kết quả cho từ khóa "Phenotypic variation"
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Comprehensive Analysis of Morphological Variation among 24 Tomato (Solanum Lycopersicum) Genotypes Oriented to Ornamental Breeding in Vietnam. Tomato is one of the most important vegetables cultivated in Vietnam. Twenty-four heirloom tomato genotypes were evaluated on 19 morphological traits. The results of principle component analysis indicated that three main principle components explained over 60% of the total phenotypic variation.
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Ani- mals that are used in research experiments present differ- ent levels of phenotypic and genetic variation not only as a result of their natural evolutionary history but, in some cases, also as a consequence of domestication processes.. By means of artificial selection, unusual phenotypes and mutants can be propa- gated in captivity expanding the phenotypic variation of the domesticated populations in relation to their free-living conspecifics [6].
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phenotypic effect in near isogenic lines when in homozygosity. [27] detected a resistance QTL with 10.2% of the phenotypic variation, but no epistatic effects were de- tected.
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This qRL16.1 could not explain the whole variation observed between Fendou 16 and K099. QTL analysis showed that qRL16.1 only explained 30.25 % of the total variation in the K099. Fendou 16 RIL population. In the Union × Fendou 16 population, qRL16.1 was detected between markers BARCSOYSSR_16_0698 and Sat_151, explain- ing 14 % of the phenotypic variation.
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In a mapping cohort of 3736 BSW bulls from which semen was collected at semen collection centers under standardized conditions, only 10% of the phenotypic variation of bull fertility was explained by autosomal var- iants. Candidate causal variants for recessive traits are fre- quently prioritized if they are compatible with the segrega- tion of the top haplotype . 6 Detailed view of a QTL for bull fertility at BTA18. inheritance of the top haplotype takes genotyping errors into account.
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This phenotypic variation in the populations indicated that PHS is a quantitative trait controlled by a major- effect QTL.. population grown in 2017 for the construction of the R- and S-pool, respectively.
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One major locus detected in all three trials was mapped in the 38.2–39.8 cM region on Chr.1, with an LOD score of and explained for of the phenotypic variation. One was located in the 14.9–22.9 cM region on Chr.1 detected in both 2017 and 2018, accounting for 3.4 and 5.0% of the phenotypic variation, respectively. 4 de- tected in all three trials, explaining 3.1–10.9% of the phenotypic variation (Table 4 and Fig.
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Popu- lation structure of the Sudan core set explained up to 25% of the observed phenotypic variation in quantitative traits including FL, PH, PL, and PD. Further integration of the Sudan core set with other sorghum diversity panels [8, 16] and NPGS core sets [22] may increase the phenotypic diversity and stat- istical power for the complete elucidation of these com- plex traits.
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A previous QTL mapping study identified four QTLs explaining 17.7 to 24.7% of the phenotypic variation for the limited leaf hydraulic conductance trait using transpir- ation response to silver nitrate as the measurement for the trait [31]..
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The aim of the current study was to perform a GWAS for RFI with imputed high density (770 K) genotypes in Australian Angus steers to detect significant SNPs statis- tically associated with phenotypic variation in RFI. The estimated heritability for RFI based on the 2190 steers used for the GWAS was using a gen- omic relationship matrix and after correcting for fixed effects of the contemporary groups.
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We mapped seven stable QTLs, which ex- plained of the phenotypic variation in root rot resistance. Accordingly, we speculated that the root rot resistance of sweetpotato may be controlled by sev- eral major QTLs. 47.42 and 47.38% of the phenotypic variation, and two QTLs for late leaf spot, explaining 47.63 and 34.03% of phenotypic variation in peanut [28].
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Additionally, whole-genome sequencing of 50 rapeseed accessions revealed three genes (BnmtACP2-A02, BnABCI13-A02 and BnECI1-A02) in the A02 chromosome haplotype region and two genes (BnFAD8-C02 and BnSDP1-C02) in the C02 chromosome haplotype region that were closely linked to oleic acid content phenotypic variation.
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On top of the DNA sequence, the superposing layer of transcriptomics adds up the inter- mediate pattern of gene interactions and physiological epistasis, before the final level of phenotypic expression [39]. Our analytical approach, by looking at the specific roles of genes with different networking connectivities, high- lights the importance of the gene system as a whole in explaining phenotypic variation rather than that of par- ticular sets of genes.
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and chr4.S explained 7.33 and 7.38% of the phenotypic variation, respectively. The four haplotype alleles accounted for 0.54 to 10.16% of the phenotypic variation, while the three haplotype blocks accounted for and 10.69%, which are quite larger than the corresponding SNPs or haplotype alleles detected.. Additionally, all the detected genetic units were mapped on the annotated genes, especially Chr3Block4589 on two genes with known biological meaning..
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A major QTL related to LTP was identified on LG15, corresponding to the confidence interval of 52.42 cM–68.94 cM, explained 7.33% of the total phenotypic variation (Table 4 and Fig. QTL related to LTX was identified on LG2, corresponding to the confidence interval of 59.32 cM–74.88 cM, explained 9.38% of the total phenotypic variation (Table 5 and Fig. R 2 represents the individual contribution of one QTL to the variation in cold hardiness. Cold hardiness phenotypic determination.
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Significant markers identified in genome wide association studies, genetic and physical position, p value, allele frequency, phenotypic effect and founder genotypes associated with 9 traits in the MAGIC population evaluated in and 2016.. Details of QTL identified by interval mapping, genetic and physical position, LOD, phenotypic variation explained, and founders ’ allelic effects mapped for 7 traits in the MAGIC population evaluated in and 2016..
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The maximum phenotypic variance was explained by PH (21.10%) followed by AD (15.64%) and GY (15.00%) under normal conditions while ASI (17.63%) showed highest phenotypic variation followed by EH (11.63%) under heat stress.. A total of 20 and 6 significant haplotypes were de- tected, which control more than one trait under normal and heat stress conditions, respectively (Tables 6). and PH, EH and GY, respectively, under normal conditions.
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Identified heading date and adult plant height QTL were fit in a multiple regression model to estimate the proportion of phenotypic variation in plant height on a given day associated with each QTL. Variation in simulated genotype values were normalized by total QTL variation explained, and plotted over time to assess the relative importance of QTL in variation in plant height over time (Fig.
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Results: Using inclusive composite interval mapping, 8 QTLs accounting for of the phenotypic variation in root traits, were detected on chromosomes 1 (qRDW v3 -1-1 and qRDW/SDW v qRBN v qSUA v1 -4-1, qSUA v2 -4-1, and qROV v2 -4-1), and 10 (qTRL v1 -10-1, qRBN v1 -10-1). 17 SNPs were repeatedly detected from at least two growth stages, with several SNPs associated with multiple traits stably identified at all evaluated stages.
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Both cis- and trans-regulatory variation are play key roles in phenotypic variation [1, 8–10]. Therefore, it is critical to investigate gene regulatory divergence in birds.. The rapid change under domestication offers a unique model for revealing the relative importance of the cis- and trans-regulatory variation underlying phenotypic change.