Identification and fine mapping of alien fragments associated with enhanced grain weight from Agropyron cristatum chromosome 7P in common wheat backgrounds

2021 ◽  
Author(s):  
Yangyang Sun ◽  
Mingjie Lyu ◽  
Haiming Han ◽  
Shenghui Zhou ◽  
Yuqing Lu ◽  
...  
Keyword(s):  
Common Wheat ◽  
Fine Mapping ◽  
Grain Weight ◽  
Agropyron Cristatum

Introgression of Agropyron cristatum 6P chromosome segment into common wheat for enhanced thousand-grain weight and spike length

2015 ◽  
Vol 128 (9) ◽  
pp. 1827-1837 ◽  
Author(s):  
Jing Zhang ◽  
Jinpeng Zhang ◽  
Weihua Liu ◽  
Haiming Han ◽  
Yuqing Lu ◽  
...  
Keyword(s):  
Common Wheat ◽  
Grain Weight ◽  
Spike Length ◽  
Agropyron Cristatum ◽  
Chromosome Segment ◽  
Thousand Grain Weight

Development of EST Markers Specific to Agropyron cristatum Chromosome 6P in Common Wheat Background

2013 ◽  
Vol 38 (10) ◽  
pp. 1791-1801 ◽  
Author(s):  
Cheng DAI ◽  
Jin-Peng ZHANG ◽  
Xiao-Yang WU ◽  
Xin-Ming YANG ◽  
Xiu-Quan LI ◽  
...  
Keyword(s):  
Common Wheat ◽  
Agropyron Cristatum ◽  
Chromosome 6P

scholarly journals Full-length transcriptome sequences of Agropyron cristatum facilitate the prediction of putative genes for thousand-grain weight in a wheat-A. cristatum translocation line

BMC Genomics ◽  
2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Shenghui Zhou ◽  
Jinpeng Zhang ◽  
Haiming Han ◽  
Jing Zhang ◽  
Huihui Ma ◽  
...  
Keyword(s):  
Single Molecule ◽  
Sequence Data ◽  
Full Length ◽  
Grain Weight ◽  
Agropyron Cristatum ◽  
Reference Sequence ◽  
Translocation Line ◽  
Thousand Grain Weight ◽  
Sequencing Platform ◽  
Transcriptome Sequences

Abstract Background Agropyron cristatum (L.) Gaertn. (2n = 4x = 28; genomes PPPP) is a wild relative of common wheat (Triticum aestivum L.) and provides many desirable genetic resources for wheat improvement. However, there is still a lack of reference genome and transcriptome information for A. cristatum, which severely impedes functional and molecular breeding studies. Results Single-molecule long-read sequencing technology from Pacific Biosciences (PacBio) was used to sequence full-length cDNA from a mixture of leaves, roots, stems and caryopses and constructed the first full-length transcriptome dataset of A. cristatum, which comprised 44,372 transcripts. As expected, the PacBio transcripts were generally longer and more complete than the transcripts assembled via the Illumina sequencing platform in previous studies. By analyzing RNA-Seq data, we identified tissue-enriched transcripts and assessed their GO term enrichment; the results indicated that tissue-enriched transcripts were enriched for particular molecular functions that varied by tissue. We identified 3398 novel and 1352 A. cristatum-specific transcripts compared with the wheat gene model set. To better apply this A. cristatum transcriptome, the A. cristatum transcripts were integrated with the wheat genome as a reference sequence to try to identify candidate A. cristatum transcripts associated with thousand-grain weight in a wheat-A. cristatum translocation line, Pubing 3035. Conclusions Full-length transcriptome sequences were used in our study. The present study not only provides comprehensive transcriptomic insights and information for A. cristatum but also proposes a new method for exploring the functional genes of wheat relatives under a wheat genetic background. The sequence data have been deposited in the NCBI under BioProject accession number PRJNA534411.

scholarly journals Assessment of Heterosis Based on Genetic Distance Estimated Using SNP in Common Wheat

Agronomy ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 66 ◽  
Author(s):  
Yingbin Nie ◽  
Wanquan Ji ◽  
Songmei Ma
Keyword(s):  
Genetic Distance ◽  
Common Wheat ◽  
Block Design ◽  
Grain Weight ◽  
Snp Analysis ◽  
Heterotic Groups ◽  
Single Nucleotide ◽  
Randomized Block Design ◽  
The Relationship ◽  
1000 Grain Weight

This study assessed the genetic distance (GD) between parental genotypes using single nucleotide polymorphism (SNP) DNA markers and evaluated the correlation between GD and heterosis in common wheat. We examined the performance of parents and hybrids in a field experiment conducted in a randomized block design at a Shihezi location with three replications. Different traits such as the height of the parents and the F1 generation, number of harvested ears, number of grains per panicle, grain weight per panicle, 1000-grain weight, and grain yield were examined. Genotyping using a wheat 90K SNP chip determined the GD between the parents and analyzed the relationship between GD and heterotic performance of hybrids in wheat. Cluster analysis based on GD estimated using SNP chips divided the 20 elite parents into five groups which were almost consistent with the parental pedigree. Correlation analysis showed a significant association between GD and mid-parent heterosis (MPH) of 1000-grain weight. However, GD and high-parent heterosis (HPH) of 1000-grain weight showed no significant correlation. There was a weak correlation between GD and with spikelet number, harvested spikes, and yield at MPH or HPH. Hence, SNP analysis may be utilized in allocating wheat parents to heterotic groups. However, the correlation between SNP-based GD and hybrid performance still remains unclear.

scholarly journals Identification and genetic analysis of multiple P chromosomes of Agropyron cristatum in the background of common wheat

2018 ◽  
Vol 17 (8) ◽  
pp. 1697-1705 ◽  
Author(s):  
Hong-xin CHEN ◽  
Hai-ming HAN ◽  
Qing-feng LI ◽  
Jin-peng ZHANG ◽  
Yu-qing LU ◽  
...  
Keyword(s):  
Genetic Analysis ◽  
Common Wheat ◽  
Agropyron Cristatum

Fine mapping of the region on wheat chromosome 7D controlling grain weight

2007 ◽  
Vol 8 (1) ◽  
pp. 79-86 ◽  
Author(s):  
Marion S. Röder ◽  
Xiu-Qiang Huang ◽  
Andreas Börner
Keyword(s):  
Fine Mapping ◽  
Wheat Chromosome ◽  
Grain Weight
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