TAG. Theoretical and Applied Genetics This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Identification of a novel SNP in the miR172 binding site of Q homoeolog AP2L-D5 is associated with spike compactness and agronomic traits in wheat (Triticum aestivum L.)
This study found that the compact spike locus of ANK-15 is on chromosome 5D instead of 2B. We have identified a new allele of AP2L-D5 as the candidate causal polymorphism. Spike architecture is a key determinant of wheat yield, a crop which supports much of the human diet but whose yield gains are stagnating. Spike architecture mutants offer opportunities to identify genetic factors contributing to inflorescence development. Here, we investigate the locus underlying the compact spike phenotype of mutant line ANK-15 by conducting mRNA-sequencing and genetic mapping using ANK-15 and its non-compact spike near-isogenic line N...
Source: TAG. Theoretical and Applied Genetics - December 23, 2023 Category: Genetics & Stem Cells Authors: Victoria Zeng Cristobal Uauy Yi Chen Source Type: research

Potato and sweetpotato breeding at the international potato center: approaches, outcomes and the way forward
Theor Appl Genet. 2023 Dec 19;137(1):12. doi: 10.1007/s00122-023-04515-7.ABSTRACTRoot and tuber crop breeding is at the front and center of CIP's science program, which seeks to develop and disseminate sustainable agri-food technologies, information and practices to serve objectives including poverty alleviation, income generation, food security and the sustainable use of natural resources. CIP was established in 1971 in Peru, which is part of potato's center of origin and diversity, with an initial mandate on potato and expanding to include sweetpotato in 1986. Potato and sweetpotato are among the top 10 most consumed foo...
Source: TAG. Theoretical and Applied Genetics - December 19, 2023 Category: Genetics & Stem Cells Authors: Hannele Lindqvist-Kreuze Merideth Bonierbale Wolfgang J Gr üneberg Thiago Mendes Bert De Boeck Hugo Campos Source Type: research

Downregulation of the expression of subgenomic chromosome A7 genes promotes plant height in resynthesized allopolyploid Brassica napus
Theor Appl Genet. 2023 Dec 18;137(1):11. doi: 10.1007/s00122-023-04510-y.ABSTRACTHomoeolog expression bias and the gene dosage effect induce downregulation of genes on chromosome A7, causing a significant increase in the plant height of resynthesized allopolyploid Brassica napus. Gene expression levels in allopolyploid plants are not equivalent to the simple average of the expression levels in the parents and are associated with several non-additive expression phenomena, including homoeolog expression bias. However, hardly any information is available on the effect of homoeolog expression bias on traits. Here, we studied t...
Source: TAG. Theoretical and Applied Genetics - December 18, 2023 Category: Genetics & Stem Cells Authors: Kanglu Zhao Jing Dong Junxiong Xu Yanbo Bai Yuhe Yin Chunshen Long Lei Wu Tuanrong Lin Longqiu Fan Yufeng Wang Patrick P Edger Zhiyong Xiong Source Type: research

OsMAPK6 positively regulates rice cold tolerance at seedling stage via phosphorylating and stabilizing OsICE1 and OsIPA1
Theor Appl Genet. 2023 Dec 16;137(1):10. doi: 10.1007/s00122-023-04506-8.ABSTRACTRice is a chilling-sensitive plant, and extremely low temperatures seriously decrease rice production. Several genes involved in chilling stress have been reported in rice; however, the chilling signaling in rice remains largely unknown. Here, we investigated the chilling tolerance phenotype of overexpression of constitutive active OsMAPK6 (CAMAPK6-OE) and OsMAPK6 mutant dsg1, and demonstrated that OsMAPK6 positively regulated rice chilling tolerance. It was shown that, under cold stress, the survival rate of dsg1 was significantly lower than ...
Source: TAG. Theoretical and Applied Genetics - December 16, 2023 Category: Genetics & Stem Cells Authors: Jiali Liu Jiaxin Liu Mingliang He Chuanzhong Zhang Yingxiang Liu Xiufeng Li Zhenyu Wang Xin Jin Jingjing Sui Wenyan Zhou Qingyun Bu Xiaojie Tian Source Type: research

Using visual scores for genomic prediction of complex traits in breeding programs
In this study, we examined the main challenges of visual scores for genomic prediction and genetic parameter estimation using mixed models, Bayesian, and machine learning methods. We evaluated these approaches using simulated and real breeding data sets. Our contribution in this study is a five-fold demonstration: (i) collecting data using an intermediate number of categories (1-3 and 1-5) is the best strategy, even considering errors associated with visual scores; (ii) Linear Mixed Models and Bayesian Linear Regression are robust to the normality violation, but marginal gains can be achieved when using Bayesian Ordinal Re...
Source: TAG. Theoretical and Applied Genetics - December 15, 2023 Category: Genetics & Stem Cells Authors: Camila Ferreira Azevedo Luis Felipe Ventorim Ferr ão Juliana Benevenuto Marcos Deon Vilela de Resende Moyses Nascimento Ana Carolina Campana Nascimento Patricio R Munoz Source Type: research

Identification and fine-mapping of QYrAS286-2BL conferring adult-plant resistance to stripe rust in cultivated emmer wheat
The objective of this study was to identify and genetically characterize the stripe rust resistance derived from the cultivated emmer accession AS286. A recombinant inbred line population, developed from a cross between the susceptible durum wheat line langdon and AS286, was genotyped using the Wheat55K single nucleotide polymorphism array and evaluated in field conditions with a mixture of the prevalent Chinese Pst races (CYR32, CYR33, CYR34, Zhong4, and HY46) and in growth chamber with race CYR34. Three QTLs conferring resistance were mapped on chromosomes 1BS, 2BL, and 5BL, respectively. The QYrAS286-1BS and QYrAS286-2B...
Source: TAG. Theoretical and Applied Genetics - December 13, 2023 Category: Genetics & Stem Cells Authors: Yuqin Li Yanling Hu Yun Jiang Qiang Zhou Yu He Jingshu He Xuejiao Chen Xue Chen Bo Jiang Ming Hao Shunzong Ning Zhongwei Yuan Jinrui Zhang Chongjing Xia Bihua Wu Lihua Feng Lianquan Zhang Dengcai Liu Lin Huang Source Type: research

Genetic control of pod morphological traits and pod edibility in a common bean RIL population
In this study, the TUM RIL population derived from a cross between 'TU' (dry) and 'Musica' (snap) was used to investigate the genetic control of pod phenotype. The character was dissected into pod morphological traits (PMTs) and edible pod characteristics (EPC). The results revealed 35 QTL for PMTs located on seven chromosomes, suggesting a strong QTL colocation on chromosomes Pv01 and Pv06. Some QTL were colocated with previously reported QTL, leading to the mapping of 15 consensus regions associated with bean PMTs. Analysis of EPC of cooked beans revealed that two major loci with epistatic effect, located on chromosomes ...
Source: TAG. Theoretical and Applied Genetics - December 13, 2023 Category: Genetics & Stem Cells Authors: Carmen Garc ía-Fernández Maria Jurado Ana Campa Elena Bitocchi Roberto Papa Juan Jose Ferreira Source Type: research

Fine-mapping and evolutionary history of R-BPMV, a dominant resistance gene to Bean pod mottle virus in Phaseolus vulgaris L
Theor Appl Genet. 2023 Dec 13;137(1):8. doi: 10.1007/s00122-023-04513-9.ABSTRACTR-BPMV is located within a recently expanded TNL cluster in the Phaseolus genus with suppressed recombination and known for resistance to multiple pathogens including potyviruses controlled by the I gene. Bean pod mottle virus (BPMV) is a comovirus that infects common bean and legumes in general. BPMV is distributed throughout the world and is a major threat on soybean, a closely related species of common bean. In common bean, BAT93 was reported to carry the R-BPMV resistance gene conferring resistance to BPMV and linked with the I resistance g...
Source: TAG. Theoretical and Applied Genetics - December 13, 2023 Category: Genetics & Stem Cells Authors: Choua ïb Meziadi Juan-Camilo Alvarez-Diaz Vincent Thareau Ariane Gratias William Marande Alvaro Soler-Garzon Phillip N Miklas St éphanie Pflieger Val érie Geffroy Source Type: research

Characterization and fine mapping of a maize lesion mimic mutant (Les8) with enhanced resistance to Curvularia leaf spot and southern leaf blight
In this study, we characterized a dominant disease lesion mimics 8 (Les8) mutant that had chlorotic lesions on the leaves and showed enhanced resistance to both curvularia leaf spot and southern leaf blight. Major agronomic traits were not obviously altered, while decreased chlorophyll content was observed in the mutant, and the genetic effect of the Les8 mutation was stable in different genetic backgrounds. By BSR-seq analysis and map-based cloning, the LES8 gene was mapped into a 909 kb region containing 38 candidate genes on chromosome 9 wherein no lesion mimic or disease-resistance genes were previously reported. Using...
Source: TAG. Theoretical and Applied Genetics - December 13, 2023 Category: Genetics & Stem Cells Authors: Jiankun Li Tianyuan Fan Ying Zhang Ye Xing Mengyao Chen Ying Wang Jie Gao Na Zhang Jinjun Tian Chenyang Zhao Sihan Zhen Junjie Fu Xiaohuan Mu Jihua Tang Hongbin Niu Mingyue Gou Source Type: research