PMID- 29342221
OWN - NLM
STAT- MEDLINE
DCOM- 20180226
LR  - 20240313
IS  - 1932-6203 (Electronic)
IS  - 1932-6203 (Linking)
VI  - 13
IP  - 1
DP  - 2018
TI  - Genotype-by-environment interactions affecting heterosis in maize.
PG  - e0191321
LID - 10.1371/journal.pone.0191321 [doi]
LID - e0191321
AB  - The environment can influence heterosis, the phenomena in which the offspring of 
      two inbred parents exhibits phenotypic performance beyond the inbred parents for 
      specific traits. In this study we measured 25 traits in a set of 47 maize hybrids 
      and their inbred parents grown in 16 different environments with varying levels 
      of average productivity. By quantifying 25 vegetative and reproductive traits 
      across the life cycle we were able to analyze interactions between the 
      environment and multiple distinct instances of heterosis. The magnitude and rank 
      among hybrids for better-parent heterosis (BPH) varied for the different traits 
      and environments. Across the traits, a higher within plot variance was observed 
      for inbred lines compared to hybrids. However, for most traits, variance across 
      environments was not significantly different for inbred lines compared to 
      hybrids. Further, for many traits the correlations of BPH to hybrid performance 
      and BPH to better parent performance were of comparable magnitude. These results 
      indicate that inbred lines and hybrids show similar trends in environmental 
      response and both are contributing to observed genotype-by-environment 
      interactions for heterosis. This study highlights the degree of heterosis is not 
      an inherent trait of a specific hybrid, but varies depending on the trait 
      measured and the environment where that trait is measured. Studies that attempt 
      to correlate molecular processes with heterosis are hindered by the fact that 
      heterosis is not a consistent attribute of a specific hybrid.
FAU - Li, Zhi
AU  - Li Z
AD  - Department of Agronomy and Plant Genetics, University of Minnesota, Saint Paul, 
      Minnesota, United States of America.
FAU - Coffey, Lisa
AU  - Coffey L
AD  - Department of Agronomy, Iowa State University, Ames, Iowa, United States of 
      America.
FAU - Garfin, Jacob
AU  - Garfin J
AD  - Department of Agronomy and Plant Genetics, University of Minnesota, Saint Paul, 
      Minnesota, United States of America.
FAU - Miller, Nathan D
AU  - Miller ND
AD  - Department of Botany, University of Wisconsin, Madison, Wisconsin, United States 
      of America.
FAU - White, Michael R
AU  - White MR
AD  - Department of Agronomy, University of Wisconsin, Madison, Wisconsin, United 
      States of America.
FAU - Spalding, Edgar P
AU  - Spalding EP
AD  - Department of Botany, University of Wisconsin, Madison, Wisconsin, United States 
      of America.
FAU - de Leon, Natalia
AU  - de Leon N
AD  - Department of Agronomy, University of Wisconsin, Madison, Wisconsin, United 
      States of America.
FAU - Kaeppler, Shawn M
AU  - Kaeppler SM
AD  - Department of Agronomy, University of Wisconsin, Madison, Wisconsin, United 
      States of America.
FAU - Schnable, Patrick S
AU  - Schnable PS
AD  - Department of Agronomy, Iowa State University, Ames, Iowa, United States of 
      America.
FAU - Springer, Nathan M
AU  - Springer NM
AD  - Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, 
      Minnesota, United States of America.
FAU - Hirsch, Candice N
AU  - Hirsch CN
AUID- ORCID: 0000-0002-8833-3023
AD  - Department of Agronomy and Plant Genetics, University of Minnesota, Saint Paul, 
      Minnesota, United States of America.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20180117
PL  - United States
TA  - PLoS One
JT  - PloS one
JID - 101285081
SB  - IM
EIN - PLoS One. 2019 Aug 5;14(8):e0219528. PMID: 31381609
MH  - *Gene-Environment Interaction
MH  - Genotype
MH  - Hybrid Vigor/*genetics
MH  - Zea mays/*genetics
PMC - PMC5771596
COIS- Competing Interests: The authors have declared that no competing interests exist.
EDAT- 2018/01/18 06:00
MHDA- 2018/02/27 06:00
PMCR- 2018/01/17
CRDT- 2018/01/18 06:00
PHST- 2017/06/10 00:00 [received]
PHST- 2018/01/03 00:00 [accepted]
PHST- 2018/01/18 06:00 [entrez]
PHST- 2018/01/18 06:00 [pubmed]
PHST- 2018/02/27 06:00 [medline]
PHST- 2018/01/17 00:00 [pmc-release]
AID - PONE-D-17-22264 [pii]
AID - 10.1371/journal.pone.0191321 [doi]
PST - epublish
SO  - PLoS One. 2018 Jan 17;13(1):e0191321. doi: 10.1371/journal.pone.0191321. 
      eCollection 2018.