Genome-Wide Association Studies of Embryogenic Callus Induction Rate in Peanut (Arachis hypogaea L.)

被引：2

作者：

Luo, Dandan ^{[1
,2
]}

Shi, Lei ^{[2
,3
,4
,5
]}

Sun, Ziqi ^{[2
,3
,4
,5
]}

Qi, Feiyan ^{[2
,3
,4
,5
]}

Liu, Hongfei ^{[2
,6
]}

Xue, Lulu ^{[2
]}

Li, Xiaona ^{[2
,6
]}

Liu, Han ^{[2
,6
]}

Qu, Pengyu ^{[1
,2
]}

Zhao, Huanhuan ^{[2
]}

Dai, Xiaodong ^{[2
,3
,4
]}

Dong, Wenzhao ^{[2
,3
,4
]}

Zheng, Zheng ^{[2
,3
,4
]}

Huang, Bingyan ^{[2
,3
,4
]}

Fu, Liuyang ^{[1
]}

Zhang, Xinyou ^{[2
,3
,4
,5
,7
]}

机构：

[1] Zhengzhou Univ, Sch Life Sci, Zhengzhou 450001, Peoples R China

[2] Henan Acad Agr Sci, Inst Crop Mol Breeding, Zhengzhou 450002, Peoples R China

[3] Minist Agr, Key Lab Oil Crops Huang Huai Hai Plains, Zhengzhou 450002, Peoples R China

[4] Henan Prov Key Lab Oil Crops Improvement, Zhengzhou 450002, Peoples R China

[5] Shennong Lab, Zhengzhou 450002, Peoples R China

[6] Zhengzhou Univ, Sch Agr Sci, Zhengzhou 450001, Peoples R China

[7] Natl Innovat Ctr Biobreeding Ind, Xinxiang 453500, Peoples R China

来源：

GENES | 2024年 / 15卷 / 02期

关键词：

peanut; CIR; GWAS; candidate gene; PLANT-REGENERATION; SHOOT REGENERATION; ROOT DEVELOPMENT; TISSUE-CULTURE; MAPPING QTLS; SMALL AUXIN; ABILITY; ACTIVATION; HYPOCOTYL; EXPLANTS;

D O I：

10.3390/genes15020160

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

The capability of embryogenic callus induction is a prerequisite for in vitro plant regeneration. However, embryogenic callus induction is strongly genotype-dependent, thus hindering the development of in vitro plant genetic engineering technology. In this study, to examine the genetic variation in embryogenic callus induction rate (CIR) in peanut (Arachis hypogaea L.) at the seventh, eighth, and ninth subcultures (T7, T8, and T9, respectively), we performed genome-wide association studies (GWAS) for CIR in a population of 353 peanut accessions. The coefficient of variation of CIR among the genotypes was high in the T7, T8, and T9 subcultures (33.06%, 34.18%, and 35.54%, respectively), and the average CIR ranged from 1.58 to 1.66. A total of 53 significant single-nucleotide polymorphisms (SNPs) were detected (based on the threshold value -log(10)(p) = 4.5). Among these SNPs, SNPB03-83801701 showed high phenotypic variance and neared a gene that encodes a peroxisomal ABC transporter 1. SNPA05-94095749, representing a nonsynonymous mutation, was located in the Arahy.MIX90M locus (encoding an auxin response factor 19 protein) at T8, which was associated with callus formation. These results provide guidance for future elucidation of the regulatory mechanism of embryogenic callus induction in peanut.

引用

页数：12