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| Web URL(s): | https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/135056
Last checked: 03/31/2022
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Huff, David R. |
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| Author Affiliation: | Pennsylvania State University, University Park, PA |
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| Title: | An ecological and evolutionary genomics perspective on the perenniality of polyploid annual bluegrass, Poa annua L. |
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| Section: | Turfgrass genomes oral: Progress and innovation for genomic research in these complex grasses
Other records with the "Turfgrass genomes oral: Progress and innovation for genomic research in these complex grasses" Section
C05 turfgrass science
Other records with the "C05 turfgrass science" Section
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| Meeting Info.: | Salt Lake City, Utah: November 7-10, 2021 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2021, p. 135056. |
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| # of Pages: | 1 |
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| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America] |
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| Abstract/Contents: | "Poa annua L. is an economically valuable and culturally important agricultural grass and one of the most problematic invasive weeds known, making it a controversial species. In addition, Poa annua displays a wide range of phenotypic variation for annuality and perenniality, which has also been a contentious and confusing issue for decades. In an effort to clarify its complex biology, this perspective attempts to provide a conceptual framework for the continuum of annuality and perenniality so often observed in Poa annua. Perenniality in grasses is achieved through the vegetative propagation of new daughter tillers at a rate faster than the primary mother tiller flowers and dies. Given that definition, Poa annua is an annual in open environments where seedling mortality is low but becomes more perennial in closed environments, like managed turfgrass, through density-dependent selection that increases vegetative reproductive effort at the expense of sexual reproductive effort. The neopolyploid genome of Poa annua is composed of an annual subgenome from its annual seed-bearing parent Poa infirma Kunth and a perennial subgenome from its perennial pollen parent Poa supinaSchrad., and as such contains the genetic potential to be either annual or perennial at the same time. Two alternative genomic models are proposed for Poa annua: 1) a dominant-submissive model where subgenome dominance is modulated between parental subgenomes in response to the environment or, 2) a dominant-dominant model where heterotic interactions between these divergent subgenomes enable traits to exceed either parental value under any environment." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"366-7" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Huff, D. R. 2021. An ecological and evolutionary genomics perspective on the perenniality of polyploid annual bluegrass, Poa annua L.. Agron. Abr. p. 135056. |
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https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/135056
Last checked: 03/31/2022
Requires: JavaScript |
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