Identification of candidate genes involved in salt stress response at germination and seedling stages by QTL mapping in upland cotton

Anhui Guo; Ying Su; Hushuai Nie; Bin Li; Xingkun Ma; Jinping Hua

doi:10.1093/g3journal/jkac099

G3: Genes, Genomes, Genetics (Apr 2022)

Identification of candidate genes involved in salt stress response at germination and seedling stages by QTL mapping in upland cotton

Anhui Guo,
Ying Su,
Hushuai Nie,
Bin Li,
Xingkun Ma,
Jinping Hua

Affiliations

Anhui Guo: ORCiD; Laboratory of Cotton Genetics, Genomics and Breeding/Key Laboratory of Crop Heterosis and Utilization of Ministry of Education, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
Ying Su: Laboratory of Cotton Genetics, Genomics and Breeding/Key Laboratory of Crop Heterosis and Utilization of Ministry of Education, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
Hushuai Nie: Laboratory of Cotton Genetics, Genomics and Breeding/Key Laboratory of Crop Heterosis and Utilization of Ministry of Education, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
Bin Li: Laboratory of Cotton Genetics, Genomics and Breeding/Key Laboratory of Crop Heterosis and Utilization of Ministry of Education, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
Xingkun Ma: Laboratory of Cotton Genetics, Genomics and Breeding/Key Laboratory of Crop Heterosis and Utilization of Ministry of Education, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
Jinping Hua: ORCiD; Laboratory of Cotton Genetics, Genomics and Breeding/Key Laboratory of Crop Heterosis and Utilization of Ministry of Education, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China

DOI: https://doi.org/10.1093/g3journal/jkac099
Journal volume & issue: Vol. 12, no. 6

Abstract

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AbstractSalinity is a major abiotic stress at critical stages of seed germination and seedling establishment. Germination rate (GR) and field emergence rate (FER) are the key traits that determine the basic number of plants stand under field conditions. To explore molecular mechanisms in upland cotton under salt stress, a population of 177 recombinant inbred lines, and their parents were evaluated for seed germination traits (GP, germination potential; GR; FW, fresh weight; DW, dry weight; GL, germinal length) and seedling traits (FER; SH, seedling height; NL, number of main stem leaves) in 2016–2018. Based on the linkage map contained 2,859 single nucleotide polymorphism and simple sequence repeat markers, traits under salt stress (E1) and normal conditions (E2), and in the converted relative index (R-value) dataset of 3 years’ trials were used to map quantitative trait loci (QTL). A total of 3 QTL and 2 clusters were detected as salt-tolerant QTL. Three QTL (qGR-Chr4-3qFER-Chr12-3qFER-Chr15-1RGh_A04G1106, Gh_A05G3246, Gh_A05G3177Gh_A05G3266

Published in G3: Genes, Genomes, Genetics

ISSN: 2160-1836 (Online)
Publisher: Oxford University Press
Country of publisher: United Kingdom
LCC subjects: Science: Biology (General): Genetics
Website: https://academic.oup.com/g3journal

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