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1. Interactive roles of chromatin regulation and circadian clock function in plants

Author:
Chen, Z. Jeffrey; Mas, Paloma
Source:
Genome biology 2019 v.20 no.1 pp. 62
ISSN:
1474-760X
Subject:
heterosis,   etc   ; chromatin; circadian clocks; circadian rhythm; domestication; epigenetics; loci; transcription (genetics);     Show all 8 Subjects
Abstract:
... Circadian rhythms in transcription ultimately result in oscillations of key biological processes. Understanding how transcriptional rhythms are generated in plants provides an opportunity for fine-tuning growth, development, and responses to the environment. Here, we present a succinct description of the plant circadian clock, briefly reviewing a number of recent studies but mostly emphasizing the ...
DOI:
10.1186/s13059-019-1672-9

2. A brief note on genes that trigger components of apomixis

Author:
Brukhin, Vladimir; Baskar, Ramamurthy
Source:
Journal of biosciences 2019 v.44 no.2 pp. 45
ISSN:
0250-5991
Subject:
heterosis,   etc   ; Angiospermae; apomixis; asexual reproduction; crops; endosperm; engineering; genes; meiosis; parthenogenesis; progeny; seeds;     Show all 12 Subjects
Abstract:
... Apomixis or asexual reproduction through seeds occurs in about 400 species of flowering plants producing genetically uniform progeny. During apomixis, meiosis is bypassed and embryos develop by parthenogenesis. However, the endosperm could form either autonomously without fertilization or sexually, depending on the plant species. Most probably, a heterochronic expression of sexually expressed gene ...
DOI:
10.1007/s12038-019-9850-1

3. Effect of male sterile and fertile cytoplasm on nuclear DNA methylation in hybrid rice

Author:
Ali, Asif; Li, Yun; Chen, Hui; Xu, Peizhou; Zhang, Hongyu; Chen, Xiaoqiong; Yongxiang, Liao; Fu, Shaohong; Wu, Tingkai; Iqbal, Muhammad Zafar; Farooq, Muhammad Umer; Wu, Xianjun
Source:
Acta physiologiae plantarum 2019 v.41 no.6 pp. 81
ISSN:
0137-5881
Subject:
heterosis,   etc   ; DNA methylation; cytoplasm; cytoplasmic male sterility; hybrids; nuclear genome; parents; rice;     Show all 8 Subjects
Abstract:
... Nucleus-controlled fertility restoration and cytoplasmic male sterility are important mechanisms to exploit heterosis. However, the effect of DNA methylation on cytoplasmic-nuclear interaction is not well understood yet. The current study used a methylation-sensitive amplified polymorphism to characterize polymorphism in nuclear DNA methylation among cytoplasmic male sterile line (D62A), correspon ...
DOI:
10.1007/s11738-019-2874-1

4. Live weight and growth of Holstein-Friesian, Jersey and crossbred dairy heifers in New Zealand

Author:
Handcock, Rhiannon C.; Lopez-Villalobos, Nicolas; McNaughton, Lorna R.; Back, Penny J.; Edwards, Grant R.; Hickson, Rebecca E.
Source:
New Zealand journal of agricultural research 2019 v.62 no.2 pp. 173-183
ISSN:
1175-8775
Subject:
heterosis,   etc   ; Holstein; Jersey; body weight; crossbreds; dairy heifers; herds; models; regression analysis; New Zealand;     Show all 10 Subjects
Abstract:
... The objective of this study was to model the growth of dairy heifers to estimate the effects of breed and heterosis on live weight (LWT) and growth from three to 22 months of age. Data comprised of 1,653,214 LWT records obtained from 189,936 dairy heifers in 1547 herds. At all ages Holstein-Friesian (F) heifers were heavier than Holstein-Friesian–Jersey crossbred (F × J) which were heavier than Je ...
DOI:
10.1080/00288233.2018.1465984

5. Multiple chromosomal rearrangements in a hybrid zone between Littorina saxatilis ecotypes

Author:
Faria, Rui; Chaube, Pragya; Morales, Hernán E.; Larsson, Tomas; Lemmon, Alan R.; Lemmon, Emily M.; Rafajlović, Marina; Panova, Marina; Ravinet, Mark; Johannesson, Kerstin; Westram, Anja M.; Butlin, Roger K.
Source:
Molecular ecology 2019 v.28 no.6 pp. 1375-1393
ISSN:
0962-1083
Subject:
heterosis,   etc   ; Littorina; chromosome inversions; crossing; ecotypes; genotyping; habitats; hybrids; linkage disequilibrium; snails;     Show all 10 Subjects
Abstract:
... Both classical and recent studies suggest that chromosomal inversion polymorphisms are important in adaptation and speciation. However, biases in discovery and reporting of inversions make it difficult to assess their prevalence and biological importance. Here, we use an approach based on linkage disequilibrium among markers genotyped for samples collected across a transect between contrasting hab ...
DOI:
10.1111/mec.14972

6. Strategy for Creating Highly Productive Forms of Small Radish Adapted for Cultivation under Artificial Light Conditions

Author:
Kochetov, A. A.; Sinyavina, N. G.
Source:
Russian agricultural sciences 2019 v.45 no.2 pp. 142-146
ISSN:
1068-3674
Subject:
heterosis,   etc   ; Raphanus sativus; early development; hybridization; hybrids; incandescent lamps; irradiation; lightning; photosynthetically active radiation; radishes; temperature;     Show all 11 Subjects
Abstract:
... A strategy for creating new radish forms adapted for cultivation under artificial lightning was developed and implemented. It is based on the original methodology of obtaining transgressive forms of various cultures with a predictable complex of economically valuable properties. Plants were grown in controlled conditions under DNaZ-400 incandescent lamps (12-h photoperiod, irradiation of 40–60 W/m ...
DOI:
10.3103/S1068367419020113

7. Identification of papaya hybrids resistant to Stagonosporopsis caricae by heterosis: a possible reality?

Author:
de Sousa Poltronieri, Tathianne Pastana; da Silveira, Silvaldo Felipe; Vivas, Marcelo; Santa-Catarina, Renato; Azevedo, Alinne Oliveira Nunes; Cortes, Diego Fernando Marmolejo; Pereira, Messias Gonzaga
Source:
Euphytica 2019 v.215 no.2 pp. 24
ISSN:
0014-2336
Subject:
heterosis,   etc   ; Phoma; Stagonosporopsis caricae; backcrossing; cultivars; disease susceptibility; fungi; genetic improvement; genotype; hybrids; papayas; plant breeding;     Show all 12 Subjects
Abstract:
... Papaya requires frequent applications of fungicides because of its high susceptibility to disease. However, no products capable of effectively managing the fungus Stagonosporopsis caricae are commercially available to date. Because of this limitation and the continuous demand for products free of chemical residues and that achieve higher yields, genetic improvement is necessary to obtain resistant ...
DOI:
10.1007/s10681-019-2348-y

8. Potential limits to the benefits of admixture during biological invasion

Author:
Barker, Brittany S.; Cocio, Janelle E.; Anderson, Samantha R.; Braasch, Joseph E.; Cang, Feng A.; Gillette, Heather D.; Dlugosch, Katrina M.
Source:
Molecular ecology 2019 v.28 no.1 pp. 100-113
ISSN:
0962-1083
Subject:
heterosis,   etc   ; Centaurea solstitialis; crossing; ecological invasion; epistasis; genetic variation; introduced species; invasive species; plants (botany);     Show all 9 Subjects
Abstract:
... Species introductions often bring together genetically divergent source populations, resulting in genetic admixture. This geographic reshuffling of diversity has the potential to generate favourable new genetic combinations, facilitating the establishment and invasive spread of introduced populations. Observational support for the superior performance of admixed introductions has been mixed, howev ...
DOI:
10.1111/mec.14958

9. Modelling non-additive genetic effects using ridge regression for an Angus–Nellore crossbred population

Author:
Bertoli, C. D.; Neto, J. Braccini; McManus, C.; Cobuci, J. A.; Campos, G. S.; Piccoli, M. L.; Roso, V.
Source:
Animal production science 2019 v.59 no.5 pp. 823-834
ISSN:
1836-0939
Subject:
heterosis,   etc   ; Angus; Nellore; additive effect; animals; crossbreds; early development; epistasis; models; phenotype; weaning;     Show all 11 Subjects
Abstract:
... Data from 294045 records from a crossbred Angus × Nellore population were used to estimate fixed genetic effects (both additive and non-additive) and to test different non-additive models using ridge regression. The traits studied included weaning gain (WG), postweaning gain (PG), phenotypic scores for weaning (WC) and postweaning (PC) conformation, weaning (WP) and postweaning (PP) precocity, wea ...
DOI:
10.1071/AN17439

10. Interspecies hybrids of Panax ginseng Meyer new line 0837 and Panax quinquefolius generated superior F1 hybrids with greater biomass and ginsenoside contents

Author:
Seo, Kwang Hoon; Mohanan, Padmanaban; Yang, Dong-Uk; Kim, Yu-Jin; Kwon, Woo-Saeng; Yang, Deok Chun
Source:
Horticulture, environment and biotechnology 2019 v.60 no.4 pp. 573-583
ISSN:
2211-3452
Subject:
heterosis,   etc   ; Panax ginseng; Panax quinquefolius; biomass; cultivars; fine roots; flowers; ginsenosides; herbs; hybrids; interspecific hybridization; medicinal properties; phenotype; pollination;     Show all 14 Subjects
Abstract:
... Panax ginseng and Panax quinquefolius are important herbs with similar benefits and medicinal properties. Both possess ginsenosides, the pharmacologically active components, abundantly in their roots. In an attempt to establish ginseng cultivars with improved agronomical characters and higher ginsenoside content, reciprocal interspecific hybrids were generated by artificial pollination of emascula ...
DOI:
10.1007/s13580-019-00154-4

11. Characterization and utilization of a cytoplasmic male sterility line of Wucai (Brassica campestris L.)

Author:
Chen, Guohu; Ye, Xinyu; Zeng, Fanli; Wang, Jian; Yuan, Lingyun; Zhu, Shidong; Hou, Jinfeng; Cheng, Yuan; Wang, Chenggang
Source:
Horticulture, environment and biotechnology 2019 v.60 no.3 pp. 373-382
ISSN:
2211-3452
Subject:
heterosis,   etc   ; Brassica rapa subsp. oleifera; anthers; ascorbic acid; backcrossing; cytoplasmic male sterility; flowers; hybrids; inbred lines; phenotype; pollen;     Show all 11 Subjects
Abstract:
... The novel male sterility line 12-14A of Wucai (Brassica campestris) was generated by backcrossing. In this study, morphological, molecular, and cytological analyses were performed to characterize this line. The phenotypes of flower organs of 12-14A were different from those of its maintainer line 12-14B, as the flowers of 12-14A were completely infertile. Molecular analysis confirmed that the male ...
DOI:
10.1007/s13580-019-00127-7

12. Cloning and Expression Analysis of SiCDPK4, a Gene Related to Heterosis in Foxtail Millet [(Setaria italica (L.) P. Beauv.)]

Author:
Liu, Dan; Li, Suying; Wang, Lina; Li, Qiang; Cui, Yanjiao; Dai, Xiaodong; Zhao, Zilong; Chen, Chao; Li, Junxia; Liu, Zhengli
Source:
Journal of plant growth regulation 2019 v.38 no.2 pp. 513-522
ISSN:
0721-7595
Subject:
heterosis,   etc   ; Setaria italica; genes; grain yield; hybrids; leaves; messenger RNA; parents; plasma membrane; protein kinases; protoplasts; roots;     Show all 12 Subjects
Abstract:
... Heterosis, which refers to the superior performance of an F₁ hybrid compared to its parents, has been widely used in crop production to increase grain yield. However, the mechanism responsible for heterosis still remains to be explored. Here, we report involvement of Setaria italica Calcium-Dependent Protein Kinase 4 (SiCDPK4) in yield-related heterosis of foxtail millet (Setaria italica (L.) P. B ...
DOI:
10.1007/s00344-018-9866-z

13. Cotyledons contribute to plant growth and hybrid vigor in Arabidopsis

Author:
Wang, Li; Liu, Pei-Chuan; Wu, Li Min; Tan, Jiafu; Peacock, W. James; Dennis, Elizabeth S.
Source:
Planta 2019 v.249 no.4 pp. 1107-1118
ISSN:
0032-0935
Subject:
heterosis,   etc   ; Arabidopsis; auxins; biomass; cotyledons; genes; genotype; hybrids; leaves; mutants; parents; phenotype; photosynthesis; plant growth; sowing; sucrose; vigor;     Show all 17 Subjects
Abstract:
... MAIN CONCLUSION: In hybrids of Arabidopsis, cotyledons influence the amount and proportion of hybrid vigor in total plant growth. We found Arabidopsis cotyledons are essential for plant growth and in some hybrids for hybrid vigor. In hybrids between C24 and Landsberg erecta (Ler), biomass vigor (heterosis) occurs in the first few days after sowing (DAS), with hybrid cotyledons being larger than th ...
DOI:
10.1007/s00425-018-3068-6

14. Ploidy and hybridity effects on leaf size, cell size and related genes expression in triploids, diploids and their parents in Populus

Author:
Zhang, Yan; Wang, Beibei; Qi, Shuaizheng; Dong, Mingliang; Wang, Zewei; Li, Yixuan; Chen, Siyuan; Li, Bailian; Zhang, Jinfeng
Source:
Planta 2019 v.249 no.3 pp. 635-646
ISSN:
0032-0935
Subject:
heterosis,   etc   ; Populus; binding proteins; breeding; cell division; diploidy; energy; forestry; genes; leaf area; leaves; parents; progeny; triploidy; vigor; woody plants;     Show all 16 Subjects
Abstract:
... MAIN CONCLUSION: Cell-size enlargement plays a pivotal role in increasing the leaf size of triploid poplar, and polyploidization could change leaf shape. ABP1 was highly expressed in triploid plants and positively related to cell size. In the plant kingdom, the leaf is the most important energy production organ, and polyploidy often exhibits a “Gigas” effect on leaf size, which benefits agricultur ...
DOI:
10.1007/s00425-018-3029-0

15. Evaluation of maize inbred lines and topcross progeny for resistance to pre-harvest aflatoxin contamination

Author:
Fountain, Jake C.; Abbas, Hamed K.; Scully, Brian T.; Li, Hong; Lee, Robert D.; Kemerait, Robert C.; Guo, Baozhu
Source:
The crop journal 2019 v.7 no.1 pp. 118-125
ISSN:
2214-5141
Subject:
heterosis,   etc   ; Aspergillus flavus; aflatoxins; breeding programs; corn; general combining ability; germplasm screening; hybrids; inbred lines; progeny; seeds;     Show all 11 Subjects
Abstract:
... Pre-harvest aflatoxin contamination occurs in maize following kernel colonization by Aspergillus flavus. Aflatoxin contamination resistance is a highly desired trait in maize breeding programs. The identification of novel sources of resistance to pre-harvest aflatoxin contamination is a major focus in germplasm screening efforts. Here, we performed a field evaluation of 64 inbred lines over two ye ...
DOI:
10.1016/j.cj.2018.10.001

16. Extensive allele‐level remodeling of histone methylation modification in reciprocal F1 hybrids of rice subspecies

Author:
Lv, Zhenling; Zhang, Wenjie; Wu, Ying; Huang, Shuangzhan; Zhou, Yunxiao; Zhang, Ai; Deng, Xin; Xu, Chunming; Xu, Zhengyi; Gong, Lei; Liu, Bao
Source:
Theplant journal 2019 v.97 no.3 pp. 571-586
ISSN:
0960-7412
Subject:
heterosis,   etc   ; Oryza sativa; alleles; chromatin; cultivars; epigenetics; gene expression; gene expression regulation; genomics; histones; hybrids; leaves; loci; methylation; rice; tissues;     Show all 16 Subjects
Abstract:
... Epigenetic mechanisms play a major role in heterosis, partly as a result of the remodeling of epigenetic modifications in F₁ hybrids. Based on chromatin immunoprecipitation‐sequencing (ChIP‐Seq) analyses, we show that at the allele level extensive histone methylation remodeling occurred for a subset of genomic loci in reciprocal F₁ hybrids of Oryza sativa (rice) cultivars Nipponbare and 93‐11, rep ...
DOI:
10.1111/tpj.14143

17. Identification and classification of S haplotypes in radish (Raphanus sativus)

Author:
Wang, Qingbiao; Zheng, Pengjing; Zhang, Li
Source:
Plant breeding 2019 v.138 no.1 pp. 121-130
ISSN:
0179-9541
Subject:
heterosis,   etc   ; Raphanus sativus; breeding; breeding lines; cross pollination; genes; haplotypes; hybrids; inbred lines; males; polymerase chain reaction; radishes; seeds;     Show all 13 Subjects
Abstract:
... Radish (Raphanus sativus L.) is a typical cross‐pollinated crop that exhibits obvious heterosis. Self‐incompatibility is an important character for F₁ hybrid breeding of radish. Knowledge of the S haplotypes of breeding lines is very important for breeders to avoid cross‐incompatibility of the parental lines. In the present study, the S haplotypes of 63 radish inbred lines, which were independentl ...
DOI:
10.1111/pbr.12664

18. Maize Genic Male-sterility Genes and Their Applications in Hybrid Breeding: Progress and Perspectives

Author:
Wan, Xiangyuan; Wu, Suowei; Li, Ziwen; Dong, Zhenying; An, Xueli; Ma, Biao; Tian, Youhui; Li, Jinping
Source:
Molecular plant 2019
ISSN:
1674-2052
Subject:
heterosis,   etc   ; Arabidopsis; biofuels; breeding; corn; crops; feedstocks; genes; genomics; hybrids; male fertility; male sterility; models; pollen; rice; seeds;     Show all 16 Subjects
Abstract:
... As one of the most important crops, maize not only has been a source of the food, feed, and industrial feedstock for biofuel and bioproducts but also became as a model plant system for addressing fundamental questions in genetics. Male sterility is a very useful trait for hybrid vigor utilization and hybrid seed production. The identification and characterization of genic male-sterility (GMS) gene ...
DOI:
10.1016/j.molp.2019.01.014

19. Genomic-polygenic and polygenic predictions for milk yield, fat yield, and age at first calving in Thai multibreed dairy population using genic and functional sets of genotypes

Author:
Laodim, Thawee; Elzo, Mauricio A.; Koonawootrittriron, Skorn; Suwanasopee, Thanathip; Jattawa, Danai
Source:
Livestock science 2019 v.219 pp. 17-24
ISSN:
1871-1413
Subject:
heterosis,   etc   ; calving; cows; databases; genes; genetic correlation; genotype; heritability; milk yield; models; pedigree; phenotype; prediction; single nucleotide polymorphism; sires; variance;     Show all 16 Subjects
Abstract:
... The objectives of this research were to estimate genomic-polygenic and polygenic variance components and parameters, and to compare prediction accuracies and rankings of animals for 305-d milk yield (MY), 305-d fat yield (FY), and age at first calving (AFC) using three genomic-polygenic models and a polygenic model (PM). Data came from 8361 first-lactation cows from the Thai multibreed dairy popul ...
DOI:
10.1016/j.livsci.2018.11.008

20. Isolation and characterisation of a MYB transcription factor associated with epigallocatechin-3-gallate biosynthesis in Camellia sinensis L.

Author:
Zheng, Shizhong; Lin, Yuling; Lai, Zhongxiong; Lin, Jinke
Source:
Journal of horticultural science & biotechnology 2019 v.94 no.1 pp. 41-48
ISSN:
1462-0316
Subject:
heterosis,   etc   ; Arabidopsis thaliana; Camellia sinensis; bioinformatics; biosynthesis; cultivars; epigallocatechin gallate; ingredients; leaves; phylogeny; polyphenols; repressor proteins; tea;     Show all 13 Subjects
Abstract:
... Epigallocatechin-3-gallate (EGCG) is a major bioactive ingredient of tea polyphenols, and a MYB transcription factor (TF) named CS_MYB regulated EGCG biosynthesis in tea plant. We isolated CS_MYB from Camellia sinensis L. ‘1005’ cultivar. Bioinformatics analysis showed that the CS_MYB protein was 1R-MYB with a single repeat, and was localised to the nucleus, consistent with the result of sub-cell ...
DOI:
10.1080/14620316.2018.1454863