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Insights into the genetic architecture of complex traits in Napier grass (Cenchrus purpureus) and QTL regions governing forage biomass yield, water use efficiency and feed quality traits

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Title Insights into the genetic architecture of complex traits in Napier grass (Cenchrus purpureus) and QTL regions governing forage biomass yield, water use efficiency and feed quality traits
 
Creator Muktar, Meki S.
Habte, Ermias
Teshome, Abel
Assefa, Yilikal
Negawo, Alemayehu T.
Ki-Won Lee
Jiyu Zhang
Jones, Christopher S.
 
Subject pennisetum purpureum
feed quality
water use
animal feeding
feeds
forage
 
Description Napier grass is the most important perennial tropical grass native to Sub-Saharan Africa and widely grown in tropical and subtropical regions around the world, primarily as a forage crop for animal feed, but with potential as an energy crop and in a wide range of other areas. Genomic resources have recently been developed for Napier grass that need to be deployed for genetic improvement and molecular dissection of important agro-morphological and feed quality traits. From a diverse set of Napier grass genotypes assembled from two independent collections, a subset of 84 genotypes (although a small population size, the genotypes were selected to best represent the genetic diversity of the collections) were selected and evaluated for 2 years in dry (DS) and wet (WS) seasons under three soil moisture conditions: moderate water stress in DS (DS-MWS); severe water stress in DS (DS-SWS) and, under rainfed (RF) conditions in WS (WS-RF). Data for agro-morphological and feed quality traits, adjusted for the spatial heterogeneity in the experimental blocks, were collected over a 2-year period from 2018 to 2020. A total of 135,706 molecular markers were filtered, after removing markers with missing values >10% and a minor allele frequency (MAF)
 
Date 2022-01-07
2021-05-27T14:27:08Z
2021-05-27T14:27:08Z
 
Type Journal Article
 
Identifier Muktar, M.S., Habte, E., Teshome, A., Assefa, Y., Negawo, A.T., Ki-Won Lee and Jiyu Zhang and Jones, C.S. 2022. Insights into the genetic architecture of complex traits in Napier grass (Cenchrus purpureus) and QTL regions governing forage biomass yield, water use efficiency and feed quality traits. Frontiers in Plant Science 12:678862.
https://hdl.handle.net/10568/113809
https://doi.org/10.3389/fpls.2021.678862
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Source Frontiers in Plant Science