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1. Fine-Mapping of qTGW1.2a, a Quantitative Trait Locus for 1000-Grain Weight in Rice

Author:
Wenhui, Wang; Linlin, Wang; Yujun, Zhu; Yeyang, Fan; Jieyun, Zhuang
Source:
Rice science 2019 v.26 no.4 pp. 220-228
ISSN:
1672-6308
Subject:
isogenic lines,   etc   ; additive effect; chromosomes; genes; grain yield; heterozygosity; homozygosity; phenotypic variation; quantitative trait loci; rice;     Show all 10 Subjects
Abstract:
... Thousand-grain weight (TGW) is a key component of grain yield in rice. This study was conducted to validate and fine-map qTGW1.2a, a quantitative trait locus for grain weight and grain size previously located in a 933.6-kb region on the long arm of rice chromosome 1. Firstly, three residual heterozygotes (RHs) were selected from a BC2F11 population of the indica rice cross Zhenshan 97 (ZS97)///ZS9 ...
DOI:
10.1016/j.rsci.2019.04.004

2. How should crop water-use efficiency be analyzed? A warning about spurious correlations

Author:
Gilbert, Matthew E.; Hernandez, M. Isabel
Source:
Field crops research 2019 v.235 pp. 59-67
ISSN:
0378-4290
Subject:
isogenic lines,   etc   ; data collection; evapotranspiration; grain yield; prediction; statistical analysis; surveys; variance; water use efficiency;     Show all 9 Subjects
Abstract:
... Water-use efficiency (WUE) is a common concept in the agronomy literature. Although definitions of WUE vary, the most common relates the ratio of grain yield (GY) to evapotranspiration (ET) e.g. WUEö=öGY/ET or WUEö=öET/GY. But using this metric has issues, as it is a ratio and is often analyzed relative to one of its components. Here it is shown that plotting WUE versus GY or ET causes spurious co ...
DOI:
10.1016/j.fcr.2019.02.017

3. Interspecific Polymorphism of DEP1 Genes and the Spike Shape in Wheats

Author:
Vavilova, V. Yu.; Konopatskaia, I. D.; Blinov, A. G.; Goncharov, N. P.
Source:
Russian journal of genetics 2019 v.55 no.7 pp. 908-913
ISSN:
1022-7954
Subject:
isogenic lines,   etc   ; 5' untranslated regions; Aegilops tauschii; Triticum aestivum subsp. spelta; Triticum turgidum subsp. durum; alleles; durum wheat; mutants; mutation;     Show all 9 Subjects
Abstract:
... In the present study, we performed an analysis of DEP1 gene sequences in ten accessions of Triticum macha Decapr. et Menabde, T. antiquorum Heer ex Udacz., T. sphaerococcum Perciv., mutants of common and durum wheat, and one semicompactoid accession of the D genome donor for common wheat Aegilops tauschii Coss. The comparative analysis showed that all studied accessions, except for the near isogen ...
DOI:
10.1134/S1022795419070147

4. Natural post-flowering photoperiod and photoperiod sensitivity: Roles in yield-determining processes in soybean

Author:
Nico, Magalí; Miralles, Daniel Julio; Kantolic, Adriana Graciela
Source:
Field crops research 2019 v.231 pp. 141-152
ISSN:
0378-4290
Subject:
isogenic lines,   etc   ; Glycine max; alleles; crop production; cropping systems; field experimentation; genotype; growing season; photoperiod; pods; production technology; racemes; soybeans;     Show all 13 Subjects
Abstract:
... Promising yield-determining responses to artificial photoperiod manipulation during post-flowering phases have been identified in soybean [Glycine max (L.) Merrill]. These responses enhance resource capture as a result of changes in phase duration, and resource use efficiency as a result of changes in node production and pod development, alleviating intra-node pod interference. This work aims to e ...
DOI:
10.1016/j.fcr.2018.10.019

5. Marker Assisted Breeding to Develop Multiple Stress Tolerant Varieties for Flood and Drought Prone Areas

Author:
Sandhu, Nitika; Dixit, Shalabh; Swamy, B. P. M.; Raman, Anitha; Kumar, Santosh; Singh, S. P.; Yadaw, R. B.; Singh, O. N.; Reddy, J. N.; Anandan, A.; Yadav, Shailesh; Venkataeshwarllu, Challa; Henry, Amelia; Verulkar, Satish; Mandal, N. P.; Ram, T.; Badri, Jyothi; Vikram, Prashant; Kumar, Arvind
Source:
Rice 2019 v.12 no.1 pp. 8
ISSN:
1939-8425
Subject:
isogenic lines,   etc   ; climate; drought; farmers; flooding tolerance; grain yield; introgression; marker-assisted selection; quantitative trait loci; rice; single nucleotide polymorphism; submergence; water stress; India; Nepal;     Show all 15 Subjects
Abstract:
... BACKGROUND: Climate extremes such as drought and flood have become major constraints to the sustainable rice crop productivity in rainfed environments. Availability of suitable climate-resilient varieties could help farmers to reduce the grain yield losses resulting from the climatic extremities. The present study was undertaken with an aim to develop high-yielding drought and submergence tolerant ...
DOI:
10.1186/s12284-019-0269-y

6. Drought in acid soil increases aluminum toxicity especially of the Al-sensitive wheat

Author:
Siecińska, Joanna; Wiącek, Dariusz; Przysucha, Bartosz; Nosalewicz, Artur
Source:
Environmental and experimental botany 2019 v.165 pp. 185-195
ISSN:
0098-8472
Subject:
isogenic lines,   etc   ; Triticum aestivum; abiotic stress; acid soils; acidification; aluminum; biomass; crops; drought; drying; laboratory experimentation; leaves; pH; roots; soil water; surface area; toxicity; transpiration; water uptake; wheat;     Show all 20 Subjects
Abstract:
... In field conditions crops growth are usually under influence of many abiotic stresses that simultaneously affect their growth. Due to large areas of cultivated lands that are prone to anthropogenic or natural acidification and increasing frequency of drought events the exposure of crops to the simultaneous action of aluminum (Al) toxicity and water deficit is a serious threat decreasing food produ ...
DOI:
10.1016/j.envexpbot.2019.06.007

7. Quality evaluation of near isogenic lines of the wheat variety carrying Sr26, Lr19 and Yr10 genes

Author:
Rai, Anjali; Mahendru-Singh, Anju; Ahlawat, Arvind K.; Kumar, Rajeev Ranjan; K, Raghunandan; Saini, Savita; Ganjewala, Deepak; Shukla, R.B.
Source:
Journal of cereal science 2019 v.88 pp. 110-117
ISSN:
0733-5210
Subject:
isogenic lines,   etc   ; adverse effects; color; dough; dough development; flour; genes; genetic markers; gluten; grain yield; introgression; protein content; screening; seeds; solvents; wheat;     Show all 16 Subjects
Abstract:
... To study possible effects of the three near isogenic lines (NILs) carrying genes, Sr26, Lr19 and Yr10, a collection of BC2F6 lines containing each of the genes singly were grown in a randomized complete block design with two replications (plot size 7.2 m2) for two successive years in the same location. Data were collected on grain yield and 20 flour quality traits and were statistically compared ( ...
DOI:
10.1016/j.jcs.2019.05.009

8. Genetic modification of spikelet arrangement in wheat increases grain number without significantly affecting grain weight

Author:
Wolde, Gizaw M.; Mascher, Martin; Schnurbusch, Thorsten
Source:
Molecular genetics and genomics 2019 v.294 no.2 pp. 457-468
ISSN:
1617-4615
Subject:
isogenic lines,   etc   ; alleles; backcrossing; dry matter accumulation; durum wheat; florets; genetic engineering; genotyping by sequencing; grain yield; introgression; phenotype; seeds; spikelets;     Show all 13 Subjects
Abstract:
... Crop yield is determined by the acquisition and allocation of photoassimilates in sink organs. Therefore, genetic modification of sink size is essential for understanding the complex signaling network regulating sink strength and source activities. Sink size in wheat depends on the number of spikelets per spike, floret/grain number per spikelet as well as the grain weight or dry matter accumulatio ...
DOI:
10.1007/s00438-018-1523-5

9. Genetic mapping and expressivity of a wheat multi-pistil gene in mutant 12TP

Author:
ZHU, Xin-xin; NI, Yong-jing; HE, Rui-shi; JIANG, Yu-mei; LI, Qiao-yun; NIU, Ji-shan
Source:
Journal of integrative agriculture 2019 v.18 no.3 pp. 532-538
ISSN:
2095-3119
Subject:
isogenic lines,   etc   ; Triticum aestivum; breeding; chromosome mapping; dominant genes; florets; flowering; genetic analysis; germplasm; heterozygosity; homozygosity; loci; microsatellite repeats; mutants; pistil; wheat;     Show all 16 Subjects
Abstract:
... We identified a wheat (Triticum aestivum L.) multi-pistil mutant from an F2 breeding population in 2012, named 12TP (three pistils in one floret). Genetic analysis showed that one dominant gene locus controlled the multi-pistil trait. Using homozygous normal and multi-pistil lines (near-isogenic lines; NILs) derived from the original mutant 12TP, a simple sequence repeat (SSR) marker assay located ...
DOI:
10.1016/S2095-3119(18)61935-5

10. Differentially expressed genes between two groups of backcross inbred lines differing in fiber length developed from Upland × Pima cotton

Author:
Wu, Man; Li, Longyun; Liu, Guoyuan; Li, Xihua; Pei, Wenfeng; Li, Xingli; Zhang, Jinfa; Yu, Shuxun; Yu, Jiwen
Source:
Molecular biology reports 2019 v.46 no.1 pp. 1199-1212
ISSN:
0301-4851
Subject:
isogenic lines,   etc   ; Gossypium barbadense; Gossypium hirsutum; backcrossing; cotton; fiber quality; gene transfer; genes; genetic background; genomics; inbred lines; introgression; microarray technology; molecular cloning; quantitative trait loci; transcriptomics;     Show all 16 Subjects
Abstract:
... Fiber length is one of the most important fiber quality traits in Upland cotton (Gossypium hirsutum L.), the most important fiber crop, and its improvement has been impeded in part by a lack of knowledge regarding its genetic basis. Introgressed backcross inbred lines (BILs) or near isogenic lines (NILs) differing in fiber length in the same genetic background, developed through advanced backcross ...
DOI:
10.1007/s11033-019-04589-x

11. Perspective Technologies of Isolated Tissue Culture in the Sugar Beet Breeding Process

Author:
Zhuzhzhalova, T. P.; Kolesnikova, E. O.; Cherkasova, N. N.; Vasilchenko, E. N.
Source:
Russian agricultural sciences 2019 v.45 no.1 pp. 21-25
ISSN:
1068-3674
Subject:
isogenic lines,   etc   ; Beta vulgaris; abiotic stress; crop production; doubled haploids; drought; environmental factors; haploidy; homozygosity; ovules; plant breeding; seeds; soil pH; sugar beet; tissue culture;     Show all 15 Subjects
Abstract:
... The methods of isolated tissue cultures allowing production and rapid propagation of the sugar beet plant material with improved or new traits are described in the presented study. It was shown that the proposed original scheme of mass reproduction and in vitro deposition of elite plants—components of highly productive hybrids—can be used for the production of seeds with improved quality. The tech ...
DOI:
10.3103/S106836741901021X

12. Nonstationary Flood Frequency Analysis for Annual Flood Peak and Volume Series in Both Univariate and Bivariate Domain

Author:
Li, Jianzhu; Lei, Yuming; Tan, Senming; Bell, Colin D.; Engel, Bernard A.; Wang, Yixuan
Source:
Water resources management 2018 v.32 no.13 pp. 4239-4252
ISSN:
0920-4741
Subject:
isogenic lines,   etc   ; Weibull statistics; climate; models; probability; soil; water conservation; watersheds;     Show all 8 Subjects
Abstract:
... Flood frequency analysis for practical application is traditionally based on the assumption of stationarity, but this assumption has been open to doubt in recent years. A number of studies have focused on the nonstationary flood frequency analysis, and the associated causes of nonstationarity. In this study, the annual maximum flood peak and flood volume of Wangkuai reservoir watershed were used, ...
DOI:
10.1007/s11269-018-2041-2

13. Earliness per se effects on developmental traits in hexaploid wheat grown under field conditions

Author:
Ochagavía, Helga; Prieto, Paula; Savin, Roxana; Griffiths, Simon; Slafer, Gustavo A.
Source:
European journal of agronomy 2018 v.99 pp. 214-223
ISSN:
1161-0301
Subject:
isogenic lines,   etc   ; alleles; chromosomes; crossing; early development; flowering date; hexaploidy; spikelets; temperature; wheat; United Kingdom;     Show all 11 Subjects
Abstract:
... Earliness per se (Eps) genes are critical for fine-tuning flowering time and likely to modify other developmental traits as well. Effects of Eps alleles on components comprising flowering time of hexaploid wheat have not been studied. In this work, we evaluated under field conditions the effects of Eps alleles on flowering time and on a number of developmental traits using four groups of near isog ...
DOI:
10.1016/j.eja.2018.07.007

14. Physiological determinants of fertile floret survival in wheat as affected by earliness per se genes under field conditions

Author:
Prieto, Paula; Ochagavía, Helga; Savin, Roxana; Griffiths, Simon; Slafer, Gustavo A.
Source:
European journal of agronomy 2018 v.99 pp. 206-213
ISSN:
1161-0301
Subject:
isogenic lines,   etc   ; alleles; breeding; chromosomes; early development; field experimentation; florets; flowering; grain yield; mortality; wheat;     Show all 11 Subjects
Abstract:
... Variations in wheat yield are largely explained by changes in grain number per m2 which is linked to the number of fertile florets at anthesis. This, in turn is the outcome of developmental processes which control floret initiation and mortality. Earliness ‘per se’ (Eps) genes are involved in fine-tuning time to anthesis in wheat (and other cereals) but their effect on development prior to anthesi ...
DOI:
10.1016/j.eja.2018.07.008

15. Mapping units based on spatial uncertainty of magnetic susceptibility and clay content

Author:
Teixeira, Daniel D.B.; Marques, José; Siqueira, Diego S.; Vasconcelos, Vinicius; Carvalho, Osmar A.; Martins, Éder S.; Pereira, Gener T.
Source:
Catena 2018 v.164 pp. 79-87
ISSN:
0341-8162
Subject:
isogenic lines,   etc   ; clay fraction; digital elevation models; hills; landscapes; magnetism; standard deviation; uncertainty;     Show all 8 Subjects
Abstract:
... This study aimed to use spatial uncertainty of magnetic susceptibility (MS) and clay content to improve soil-mapping units. In an experimental area of 870ha, a regular sampling grid containing 371 points was set, in which MS and clay content were assessed at a depth range of 0–0.25m. Using a digital elevation model and field observations, a 4440-m transect was established on the study area from hi ...
DOI:
10.1016/j.catena.2017.12.038

16. Beryllium-7 measurements of wind erosion on sloping fields in the wind-water erosion crisscross region on the Chinese Loess Plateau

Author:
Zhang, Jiaqiong; Yang, Mingyi; Deng, Xinxin; Liu, Zhang; Zhang, Fengbao; Zhou, Weiying
Source:
The Science of the total environment 2018 v.615 pp. 240-252
ISSN:
0048-9697
Subject:
isogenic lines,   etc   ; equations; field experimentation; microrelief; water erosion; wind; wind erosion; China;     Show all 8 Subjects
Abstract:
... Soil erosion is complex in the wind-water erosion crisscross region of the Chinese Loess Plateau, as interleaving of wind and water erosion occurs on both temporal and spatial scales. It is difficult to distinguish wind erosion from the total erosion in previous studies due to the untraceable of aeolian particles and the limitation of feasible methods and techniques. This study used beryllium-7 me ...
DOI:
10.1016/j.scitotenv.2017.09.238

17. Dissection and fine-mapping of two QTL for grain size linked in a 460-kb region on chromosome 1 of rice

Author:
Dong, Qing; Zhang, Zhen-Hua; Wang, Lin-Lin; Zhu, Yu-Jun; Fan, Ye-Yang; Mou, Tong-Min; Ma, Liang-Yong; Zhuang, Jie-Yun
Source:
Rice 2018 v.11 no.1 pp. 44
ISSN:
1939-8425
Subject:
isogenic lines,   etc   ; breeding; chromosomes; genes; grain quality; grain yield; heterozygosity; quantitative polymerase chain reaction; quantitative trait loci; rice;     Show all 10 Subjects
Abstract:
... BACKGROUND: Grain size is a key determinant of grain weight and a trait having critical influence on grain quality in rice. While increasing evidences are shown for the importance of minor-effect QTL in controlling complex traits, the attention has not been given to grain size until recently. In previous studies, five QTL having small effects for grain size were resolved on the long arm of chromos ...
DOI:
10.1186/s12284-018-0236-z

18. A copula-based analysis of projected climate changes to bivariate flood quantiles

Author:
Yin, Jiabo; Guo, Shenglian; He, Shaokun; Guo, Jiali; Hong, Xingjun; Liu, Zhangjun
Source:
Journal of hydrology 2018 v.566 pp. 23-42
ISSN:
0022-1694
Subject:
isogenic lines,   etc   ; climate change; climate models; floods; hydrologic models; probability; risk assessment; simulation models; stream flow; watersheds; China;     Show all 11 Subjects
Abstract:
... Climate change will lead to great impacts on flood frequency curve and design floods in the future. However, traditional hydrologic approaches often fail to analyze the flood characteristics within a bivariate framework under changing environment. Moreover, previous studies investigating bivariate characteristics of flood usually do not derive the adaptive flood quantiles. This study assesses the ...
DOI:
10.1016/j.jhydrol.2018.08.053

19. Effect of genetic background on the stability of sunflower fatty acid composition in different high oleic mutations

Author:
Alberio, Constanza; Aguirrezábal, Luis AN; Izquierdo, Natalia G; Reid, Roberto; Zuil, Sebastián; Zambelli, Andrés
Source:
Journal of the science of food and agriculture 2018 v.98 no.11 pp. 4074-4084
ISSN:
0022-5142
Subject:
isogenic lines,   etc   ; Helianthus annuus; environmental factors; fatty acid composition; genetic background; mutation; night temperature; oleic acid; sowing date; sunflower oil;     Show all 10 Subjects
Abstract:
... BACKGROUND: The effect of genetic background on the stability of fatty acid composition in sunflower near isogenic lines (NILs) carrying high‐oleic Pervenets (P) or high‐oleic NM1 mutations was studied. The materials were field‐tested in different locations and at different sowing dates to evaluate a wide range of environmental conditions. Relationships were established between the fatty acids and ...
DOI:
10.1002/jsfa.8924

20. The role of cytoplasmatic diversification on some productivity traits of maize

Author:
Calugar, RoxanaE.; Has, VoichitaV.; Varga, Andrei; Vana, CarmenD.; Copandean, Ana; Has, Ioan
Source:
Euphytica 2018 v.214 no.6 pp. 90
ISSN:
0014-2336
Subject:
isogenic lines,   etc   ; agronomic traits; backcrossing; corn; cytoplasm; cytoplasmic male sterility; genotype; hybrids; inbred lines; inheritance (genetics); seeds; yield components;     Show all 12 Subjects
Abstract:
... The discovery of cytoplasmic male sterility directed scientists to focus their research on the role and influence of cytoplasmic factors on the heredity of some important agronomic traits, especially in hybrids. In this context, numerous cytolines have been created at the Agricultural Research and Development Station Turda (Romania) in order to assess if their genetic value could be due to cytopla ...
DOI:
10.1007/s10681-018-2171-x