Genomic basis determining root system architecture in maize
In this study, we conducted a comprehensive genetic analysis for 14 shoot-borne root traits using 513 inbred lines and 800 individuals from four recombinant inbred line (RIL) populations at the mature stage across multiple field trails. Our analysis revealed substantial phenotypic variation for these 14 root traits, with a total of 389 and 344 QTLs identified through genome-wide association analysis (GWAS) and linkage analysis, respectively. These QTLs collectively explained 32.2-65.0% and 23.7-63.4% of the trait variation within each population. Several a priori candidate genes involved in auxin and cytokinin signaling pa...
Source: TAG. Theoretical and Applied Genetics - April 12, 2024 Category: Genetics & Stem Cells Authors: Pengcheng Li Zhihai Zhang Gui Xiao Zheng Zhao Kunhui He Xiaohong Yang Qingchun Pan Guohua Mi Zhongtao Jia Jianbing Yan Fanjun Chen Lixing Yuan Source Type: research

Genetic characterization of a locus responsible for low pungency using EMS-induced mutants in Capsicum annuum L
In this study, we characterized two allelic ethyl methanesulfonate-induced mutant lines with extremely low pungency ('221-2-1a' and '1559-1-2h'). These mutants, derived from the pungent Korean landrace 'Yuwolcho,' exhibited lower capsaicinoid content than Yuwolcho but still contained a small amount of capsaicinoid with functional capsaicinoid biosynthetic genes. Genetic crosses between the mutants and Yuwolcho or pungent lines indicated that a single recessive mutation was responsible for the low-pungency phenotype of mutant 221-2-1a; we named the causal locus Pungency 4 (Pun4). To identify Pun4, we combined genome-wide po...
Source: TAG. Theoretical and Applied Genetics - April 12, 2024 Category: Genetics & Stem Cells Authors: Seungki Back Jung-Min Kim Hayoung Choi Joung-Ho Lee Koeun Han Doyeon Hwang Jin-Kyung Kwon Byoung-Cheorl Kang Source Type: research

A nonsynonymous mutation in BhLS, encoding an acyl-CoA N-acyltransferase leads to fruit and seed size variation in wax gourd (Benincasa hispida)
In this study, we observed a strong correlation between fruit size and seed size variation in our mapping population, indicating genetic control by a single gene, BhLS, with large size being dominant over small. Through bulk segregant analysis sequencing and fine mapping with a large F2 population, we precisely located the BhLS gene within a 47.098-kb physical interval on Chromosome 10. Within this interval, only one gene, Bhi10M000649, was identified, showing homology to Arabidopsis HOOKLESS1. A nonsynonymous mutation (G to C) in the second exon of Bhi10M000649 was found to be significantly associated with both fruit and ...
Source: TAG. Theoretical and Applied Genetics - April 11, 2024 Category: Genetics & Stem Cells Authors: Jinqiang Yan Jiaowen Cheng Dasen Xie Yi Wang Min Wang Songguang Yang Biao Jiang Lin Chen Jinsen Cai Wenrui Liu Source Type: research

A nonsynonymous mutation in BhLS, encoding an acyl-CoA N-acyltransferase leads to fruit and seed size variation in wax gourd (Benincasa hispida)
In this study, we observed a strong correlation between fruit size and seed size variation in our mapping population, indicating genetic control by a single gene, BhLS, with large size being dominant over small. Through bulk segregant analysis sequencing and fine mapping with a large F2 population, we precisely located the BhLS gene within a 47.098-kb physical interval on Chromosome 10. Within this interval, only one gene, Bhi10M000649, was identified, showing homology to Arabidopsis HOOKLESS1. A nonsynonymous mutation (G to C) in the second exon of Bhi10M000649 was found to be significantly associated with both fruit and ...
Source: TAG. Theoretical and Applied Genetics - April 11, 2024 Category: Genetics & Stem Cells Authors: Jinqiang Yan Jiaowen Cheng Dasen Xie Yi Wang Min Wang Songguang Yang Biao Jiang Lin Chen Jinsen Cai Wenrui Liu Source Type: research

Genotype-by-environment interactions and local adaptation shape selection in the US National Chip Processing Trial
We present a novel method for dissecting the interplay between selection, local adaptation and environmental response in plant breeding schemes. Balancing local adaptation and the desire for widely adapted cultivars is challenging for plant breeders and makes genotype-by-environment interactions (GxE) an important target of selection. Selecting for GxE requires plant breeders to evaluate plants across multiple environments. One way breeders have accomplished this is to test advanced materials across many locations. Public potato breeders test advanced breeding material in the National Chip Processing Trial (NCPT), a public...
Source: TAG. Theoretical and Applied Genetics - April 10, 2024 Category: Genetics & Stem Cells Authors: Husain I Agha Jeffrey B Endelman Jessica Chitwood-Brown Mark Clough Joseph Coombs Walter S De Jong David S Douches Charles R Higgins David G Holm Richard Novy Marcio F R Resende Vidyasagar Sathuvalli Asunta L Thompson G Craig Yencho Lincoln Zotarelli Laur Source Type: research

A large presence/absence variation in the promotor of the ClLOG gene determines trichome elongation in watermelon
Theor Appl Genet. 2024 Apr 9;137(5):98. doi: 10.1007/s00122-024-04601-4.ABSTRACTThe ClLOG gene encoding a cytokinin riboside 5'-monophosphate phosphoribohydrolase determines trichome length in watermelon, which is associated with its promoter variations. Trichomes, which are differentiated from epidermal cells, are special accessory structures that cover the above-ground organs of plants and possibly contribute to biotic and abiotic stress resistance. Here, a bulked segregant analysis (BSA) of an F2 population with significant variations in trichome length was undertaken. A 1.84-Mb candidate region on chromosome 10 was ass...
Source: TAG. Theoretical and Applied Genetics - April 9, 2024 Category: Genetics & Stem Cells Authors: Yuyuan Ma Yu Wang Zhiqin Zhou Runqin Zhang Yiru Xie Yihan Zhang Yongming Bo Xiaolong Lyu Jinghua Yang Mingfang Zhang Zhongyuan Hu Source Type: research

A large presence/absence variation in the promotor of the ClLOG gene determines trichome elongation in watermelon
Theor Appl Genet. 2024 Apr 9;137(5):98. doi: 10.1007/s00122-024-04601-4.ABSTRACTThe ClLOG gene encoding a cytokinin riboside 5'-monophosphate phosphoribohydrolase determines trichome length in watermelon, which is associated with its promoter variations. Trichomes, which are differentiated from epidermal cells, are special accessory structures that cover the above-ground organs of plants and possibly contribute to biotic and abiotic stress resistance. Here, a bulked segregant analysis (BSA) of an F2 population with significant variations in trichome length was undertaken. A 1.84-Mb candidate region on chromosome 10 was ass...
Source: TAG. Theoretical and Applied Genetics - April 9, 2024 Category: Genetics & Stem Cells Authors: Yuyuan Ma Yu Wang Zhiqin Zhou Runqin Zhang Yiru Xie Yihan Zhang Yongming Bo Xiaolong Lyu Jinghua Yang Mingfang Zhang Zhongyuan Hu Source Type: research

Genetic dissection of ten photosynthesis-related traits based on InDel- and SNP-GWAS in soybean
Theor Appl Genet. 2024 Apr 8;137(5):96. doi: 10.1007/s00122-024-04607-y.ABSTRACTA total of 416 InDels and 112 SNPs were significantly associated with soybean photosynthesis-related traits. GmIWS1 and GmCDC48 might be related to chlorophyll fluorescence and gas-exchange parameters, respectively. Photosynthesis is one of the main factors determining crop yield. A better understanding of the genetic architecture for photosynthesis is of great significance for soybean yield improvement. Our previous studies identified 5,410,112 single nucleotide polymorphisms (SNPs) from the resequencing data of 219 natural soybean accessions....
Source: TAG. Theoretical and Applied Genetics - April 8, 2024 Category: Genetics & Stem Cells Authors: Dezhou Hu Yajun Zhao Lixun Zhu Xiao Li Jinyu Zhang Xuan Cui Wenlong Li Derong Hao Zhongyi Yang Fei Wu Shupeng Dong Xiaoyue Su Fang Huang Deyue Yu Source Type: research

Molecular mapping of the broad bean wilt virus 2 resistance locus bwvr in Capsicum annuum using BSR-seq
Theor Appl Genet. 2024 Apr 8;137(5):97. doi: 10.1007/s00122-024-04603-2.ABSTRACTBulked segregant RNA seq of pools of pepper accessions that are susceptible or resistant to Broad bean wilt virus 2 identifies a gene that might confer resistance to this devastating pathogen. The single-stranded positive-sense RNA virus Broad bean wilt virus 2 (BBWV2) causes substantial damage to pepper (Capsicum annuum) cultivation. Here, we describe mapping the BBWV2 resistance locus bwvr using a F7:8 recombinant inbred line (RIL) population constructed by crossing the BBWV2-resistant pepper accession 'SNU-C' with the susceptible pepper acce...
Source: TAG. Theoretical and Applied Genetics - April 8, 2024 Category: Genetics & Stem Cells Authors: Jung-Min Kim Joung-Ho Lee Se-Ran Park Jin-Kyoung Kwon Na-Young Ro Byoung-Cheorl Kang Source Type: research

The grapevine miR827a regulates the synthesis of stilbenes by targeting VqMYB14 and gives rise to susceptibility in plant immunity
In this study, a microRNA (miRNA; miR827a), which negatively regulates its target gene VqMYB14, a key regulatory role in the synthesis of stilbenes, was identified in Vitis quinquangularis (V. quinquangularis) using transcriptome sequencing. Using overexpression and silencing approaches, we found that miR827a regulates the synthesis of stilbenes by targeting VqMYB14. We used flagellin N-terminal 22-amino-acid peptide (flg22), the representative elicitor in plant basal immunity, as the elicitor to verify whether miR827a is involved in the basal immunity of V. quinquangularis. Furthermore, the promoter activity of miR827a wa...
Source: TAG. Theoretical and Applied Genetics - April 6, 2024 Category: Genetics & Stem Cells Authors: Yangyang Luo Linxia Wang Jie Zhu Jingwen Tian Lin You Qin Luo Jia Li Qian Yao Dong Duan Source Type: research

The grapevine miR827a regulates the synthesis of stilbenes by targeting VqMYB14 and gives rise to susceptibility in plant immunity
In this study, a microRNA (miRNA; miR827a), which negatively regulates its target gene VqMYB14, a key regulatory role in the synthesis of stilbenes, was identified in Vitis quinquangularis (V. quinquangularis) using transcriptome sequencing. Using overexpression and silencing approaches, we found that miR827a regulates the synthesis of stilbenes by targeting VqMYB14. We used flagellin N-terminal 22-amino-acid peptide (flg22), the representative elicitor in plant basal immunity, as the elicitor to verify whether miR827a is involved in the basal immunity of V. quinquangularis. Furthermore, the promoter activity of miR827a wa...
Source: TAG. Theoretical and Applied Genetics - April 6, 2024 Category: Genetics & Stem Cells Authors: Yangyang Luo Linxia Wang Jie Zhu Jingwen Tian Lin You Qin Luo Jia Li Qian Yao Dong Duan Source Type: research

The grapevine miR827a regulates the synthesis of stilbenes by targeting VqMYB14 and gives rise to susceptibility in plant immunity
In this study, a microRNA (miRNA; miR827a), which negatively regulates its target gene VqMYB14, a key regulatory role in the synthesis of stilbenes, was identified in Vitis quinquangularis (V. quinquangularis) using transcriptome sequencing. Using overexpression and silencing approaches, we found that miR827a regulates the synthesis of stilbenes by targeting VqMYB14. We used flagellin N-terminal 22-amino-acid peptide (flg22), the representative elicitor in plant basal immunity, as the elicitor to verify whether miR827a is involved in the basal immunity of V. quinquangularis. Furthermore, the promoter activity of miR827a wa...
Source: TAG. Theoretical and Applied Genetics - April 6, 2024 Category: Genetics & Stem Cells Authors: Yangyang Luo Linxia Wang Jie Zhu Jingwen Tian Lin You Qin Luo Jia Li Qian Yao Dong Duan Source Type: research

Identification of a novel marker and its associated laccase gene for regulating ear length in tropical and subtropical maize lines
This study revealed the identification of a novel gene, Zm00001d042906, that regulates maize ear length by modulating lignin synthesis and reported a molecular marker for selecting maize lines with elongated ears. Maize ear length has garnered considerable attention due to its high correlation with yield. In this study, six maize inbred lines of significant importance in maize breeding were used as parents. The temperate maize inbred line Ye107, characterized by a short ear, was crossed with five tropical or subtropical inbred lines featuring longer ears, creating a multi-parent population displaying significant variations...
Source: TAG. Theoretical and Applied Genetics - April 5, 2024 Category: Genetics & Stem Cells Authors: Yaqi Bi Fuyan Jiang Yudong Zhang Ziwei Li Tianhui Kuang Ranjan K Shaw Muhammad Adnan Kunzhi Li Xingming Fan Source Type: research

Identification of a novel marker and its associated laccase gene for regulating ear length in tropical and subtropical maize lines
This study revealed the identification of a novel gene, Zm00001d042906, that regulates maize ear length by modulating lignin synthesis and reported a molecular marker for selecting maize lines with elongated ears. Maize ear length has garnered considerable attention due to its high correlation with yield. In this study, six maize inbred lines of significant importance in maize breeding were used as parents. The temperate maize inbred line Ye107, characterized by a short ear, was crossed with five tropical or subtropical inbred lines featuring longer ears, creating a multi-parent population displaying significant variations...
Source: TAG. Theoretical and Applied Genetics - April 5, 2024 Category: Genetics & Stem Cells Authors: Yaqi Bi Fuyan Jiang Yudong Zhang Ziwei Li Tianhui Kuang Ranjan K Shaw Muhammad Adnan Kunzhi Li Xingming Fan Source Type: research

Identification and functional analysis of a chromosome 2D fragment harboring TaFPF1 gene with the potential for yield improvement using a late heading wheat mutant
Theor Appl Genet. 2024 Apr 3;137(4):92. doi: 10.1007/s00122-024-04593-1.ABSTRACTA chromosome fragment influencing wheat heading and grain size was identified using mapping of m406 mutant. The study of TaFPF1 in this fragment provides more insights into wheat yield improvement. In recent years, wheat production has faced formidable challenges driven by rapid population growth and climate change, emphasizing the importance of improving specific agronomic traits such as heading date, spike length, and grain size. To identify potential genes for improving these traits, we screened a wheat EMS mutant library and identified a mu...
Source: TAG. Theoretical and Applied Genetics - April 3, 2024 Category: Genetics & Stem Cells Authors: Lifen Wu Guangrong Li Danping Li Chunhao Dong Xueying Zhang Lichao Zhang Zujun Yang Xiuying Kong Chuan Xia Jingtang Chen Xu Liu Source Type: research