Assessing the Effect of a Major Quantitative Locus for Phosphorus Uptake (Pup1) in Rice (O. sativa L.) Grown under a Temperate Region

Water and phosphorus (P) fertilizer are two of the most critical inputs in rice cultivation. Irrigation and chemical fertilizers are becoming limiting factors under climate change and urbanization, which is leading to significant losses in yield. The Pup1 quantitative trait locus (QTL) confers toler...

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Vydané v:Agriculture (Basel) Ročník 12; číslo 12; s. 2056
Hlavní autori: Navea, Ian Paul, Han, Jae-Hyuk, Shin, Na-Hyun, Lee, O New, Kwon, Soon-Wook, Choi, Il-Ryong, Chin, Joong Hyoun
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Basel MDPI AG 01.12.2022
Predmet:
abiotic stress
agriculture
Agrochemicals
backcrossing
Climate change
Crop yield
Cultivation
drought
Fertilizers
Gene mapping
genetic similarity
genome
Genomics
Genotyping
Grain cultivation
grain yield
introgression
Irrigation
Kinases
loci
marker-assisted breeding
Phosphorus
phosphorus uptake
Pup1
Quantitative trait loci
Rice
Starvation
temperate zones
Thermal cycling
Tropical environments
Urbanization
vegetative growth
vigor
United Kingdom > UK
South Korea
ISSN:2077-0472, 2077-0472
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Shrnutí:Water and phosphorus (P) fertilizer are two of the most critical inputs in rice cultivation. Irrigation and chemical fertilizers are becoming limiting factors under climate change and urbanization, which is leading to significant losses in yield. The Pup1 quantitative trait locus (QTL) confers tolerance to P starvation through enhanced early-stage root vigor and P uptake in indica rice grown in the tropics. Whether the QTL works in temperate rice genetic backgrounds grown in temperate regions remains to be elucidated. To address this question, we introgressed the Pup1 QTL into three temperate rice varieties—MS11, TR22183, and Dasanbyeo—using marker-assisted backcrossing and high-density genotyping. The selected lines all harbored the full Pup1 QTL with recurrent parent genome recovery rates ranging from 66.5% to 99.8%. Under the rainfed and P non-supplied conditions, Pup1 introgression lines did not show clear advantages over the recurrent parents in terms of vegetative growth and grain yield per plant, but exhibited enhanced yield responses to P application, except in Dasanbyeo, which a temperate rice that is genetically similar to indica. Our results suggest that Pup1 confers enhanced P uptake in temperate rice and that the efficacy of Pup1 might depend on the subspecific genomic background of the rice, whether it is japonica or indica.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:2077-0472
2077-0472
DOI:10.3390/agriculture12122056