NDLI: Construction of A GBS-Based High-Density Genetic Map and Flower Color-Related Loci Mapping in Grasspea (Lathyrus sativus L.)

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Construction of A GBS-Based High-Density Genetic Map and Flower Color-Related Loci Mapping in Grasspea (Lathyrus sativus L.)

Content Provider	MDPI
Author	Hao, Xiaopeng Yang, Tao Wang, Yan Liu, Rong Dong, Xue Zhao, Jiandong Han, Jucai Zong, Xuxiao Chang, Jianwu Liu, Huiping
Copyright Year	2022
Description	Grasspea (Lathyrus sativus L.), a legume crop with excellent resistance to a broad array of environmental stressors, has, to this point, been poorly genetically characterized. High-density genetic linkage maps are critical for draft genome assembly, quantitative trait loci (QTLs) analysis, and gene mining. The lack of a high-density genetic linkage map has limited both genomic studies and selective breeding in grasspea. Here, we developed a high-density genetic linkage map of grasspea using genotyping-by-sequencing (GBS) to sequence 154 grasspea plants, comprising 2 parents and 152 $F_{2}$ progeny. In all, 307.74 Gb of data was produced, including 2,108,910,938 paired-end reads, as well as 3536 SNPs mapped to seven linkage groups (LG1–LG7). With an average length of 996.52 cM per LG, the overall genetic distance was 6975.68 cM. Both the $χ^{2}$ test and QTL analysis, based on the Kruskal–Wallis (KW) test and interval mapping (IM) analysis, revealed the monogenic inheritance of flower color in grasspea, with the responsible QTL located between 308.437 cM and 311.346 cM in LG4. The results can aid grasspea genome assembly and accelerate the selective breeding of new grasspea germplasm resources.
Starting Page	2172
e-ISSN	22237747
DOI	10.3390/plants11162172
Journal	Plants
Issue Number	16
Volume Number	11
Language	English
Publisher	MDPI
Publisher Date	2022-08-21
Access Restriction	Open
Subject Keyword	Plants Plant Sciences Genetic Linkage Map Genotyping-by-sequencing (gbs) Lathyrus Sativus L. (grasspea) Snp Qtls
Content Type	Text
Resource Type	Article

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