Genome-wide association study of ear tip barrenness in waxy maize

Bibliographische Detailangaben
Veröffentlicht in:	Breeding science. - 1998. - 73(2023), 3 vom: 01. Juni, Seite 261-268
1. Verfasser:	Song, Xudong (VerfasserIn)
Weitere Verfasser:	Zhou, Guangfei, Zhang, Zhenliang, Zhang, Huiming, Xue, Lin, Wang, Hui, Shi, Mingliang, Lu, Huhua, Mao, Yuxiang, Chen, Guoqing, Huang, Xiaolan, Zheng, Hongjian, Hao, Derong
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2023
Zugriff auf das übergeordnete Werk:	Breeding science
Schlagworte:	Journal Article ear tip barrenness favorable allele genome-wide association study waxy maize

Beschreibung
Zusammenfassung:	Copyright © 2023 by JAPANESE SOCIETY OF BREEDING. Ear tip-barrenness (ETB), which results from aborted kernels or infertile florets at the ear tip, is an undesirable factor affecting the yield and quality of waxy maize. To uncover the genetic basis of ETB, a genome-wide association study (GWAS) was conducted using the genotype with 27,354 SNPs and phenotype with three environments. Five SNPs that distributed on chromosomes 1, 3 and 6, were identified to be significantly associated with ETB based on the threshold of false discovery rate (FDR) at 0.05. Among these significant loci, three SNPs were clustered together and colocalized with genomic regions previously reported. The average length of ETB decreased almost linearly from the inbred lines containing no favorable alleles across the three loci (1.75 cm) to those with one (1.18 cm), two (0.94 cm) and three (0.65 cm) favorable alleles. Moreover, three important genes, Zm00001d030028, Zm00001d041510 and Zm00001d038676 were predicted for three significant QTLs, respectively. These results promote the understanding genetic basis for ETB and will be useful for breeding waxy maize varieties with high-quality and high-yield
Beschreibung:	Date Revised 20.10.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1344-7610
DOI:	10.1270/jsbbs.22056