Identification and diversity of tropical maize inbred lines with resistance to common rust (Puccinia sorghi Schwein)

Autor:	B. Jumbo, Anani Y. Bruce, Edna K. Mageto, Dan Makumbi, Susan G. Njeri, Julius Pyton Sserumaga, Silvano O. Assanga
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	Veterinary medicine Genetic diversity Inbred strain Inoculation food and beverages Special Issue: Celebrating the International Year of Plant Health Single-nucleotide polymorphism Allele Heritability Plant disease resistance Biology Agronomy and Crop Science Rust
Zdroj:	Crop Science
ISSN:	1435-0653 0011-183X
Popis:	Common rust (CR) caused by Puccinia sorghi Schwein is one of the major foliar diseases of maize (Zea mays L.) in Eastern and Southern Africa. This study was conducted to (i) evaluate the response of elite tropical adapted maize inbred lines to Puccinia sorghi and identify resistant lines (ii) examine associations between CR disease parameters and agronomic traits, and (iii) assess the genetic diversity of the inbred lines. Fifty inbred lines were evaluated in field trials for three seasons (2017–2019) in Uganda under artificial inoculation. Disease severity was rated on a 1–9 scale at 21 (Rust 1), 28 (Rust 2), and 35 (Rust 3) days after inoculation. Area under disease progress curve (AUDPC) was calculated. The genetic diversity of the lines was assessed using 44,975 single nucleotide polymorphism markers. Combined ANOVA across seasons showed significant (P
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3428145cecf28ce1618202a00ce444c http://europepmc.org/articles/PMC7839556 Zobrazit plný text záznamu Plný text