A molecular marker associated with low-temperature induction of dormancy in red osier dogwood (Cornus sericea)
Dormancy induction in temperate deciduous plants is thought to be regulated by short photoperiods, but low temperature has been shown to eliminate the short photoperiod requirement in northern ecotypes. An F2 population (191 plants) red osier dogwood ( Cornus sericea L.) derived from a polycross of...
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fthighwire:oai:open-archive.highwire.org:treephys:27/3/385 2023-05-15T17:46:43+02:00 A molecular marker associated with low-temperature induction of dormancy in red osier dogwood (Cornus sericea) Svendsen, Erl Wilen, Ron Stevenson, Robert Liu, Rensong Tanino, Karen K. 2007-03-01 00:00:00.0 text/html http://treephys.oxfordjournals.org/cgi/content/short/27/3/385 https://doi.org/10.1093/treephys/27.3.385 en eng Oxford University Press http://treephys.oxfordjournals.org/cgi/content/short/27/3/385 http://dx.doi.org/10.1093/treephys/27.3.385 Copyright (C) 2007, Oxford University Press Original Articles TEXT 2007 fthighwire https://doi.org/10.1093/treephys/27.3.385 2010-03-27T18:53:43Z Dormancy induction in temperate deciduous plants is thought to be regulated by short photoperiods, but low temperature has been shown to eliminate the short photoperiod requirement in northern ecotypes. An F2 population (191 plants) red osier dogwood ( Cornus sericea L.) derived from a polycross of an F1 population produced from reciprocal crosses of the parental clonal ecotypes, Northwest Territories (NWT, 62° N) and Utah (42° N), was examined to identify molecular markers of temperature-induced endodormancy. Dormancy induction curves were generated for each individual in the F2 population and a standard point prior to vegetative maturity (i-VM) was inferred from the change in slope of the dormancy acquisition curve. Under Saskatoon, Saskatchewan field conditions (52° N), the NWT ecotype entered i-VM on average 5−6 weeks before the Utah ecotype. Two sub-populations of the F2 population were distinguishable based on VM acquisition on exposure to low temperature but not to short photoperiods. A sequence characterized amplified region (SCAR) marker was developed that correctly (> 92%) identified individual plants within the F2 subpopulation that were responsive to low-temperature induction of VM. Timing of bud break was strongly associated with the timing of VM in the geographical ecotypes but not in the F2 population, indicating that these are separate traits under genetic control. Text Northwest Territories HighWire Press (Stanford University) Northwest Territories Tree Physiology 27 3 385 397 |
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English |
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Original Articles |
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Original Articles Svendsen, Erl Wilen, Ron Stevenson, Robert Liu, Rensong Tanino, Karen K. A molecular marker associated with low-temperature induction of dormancy in red osier dogwood (Cornus sericea) |
topic_facet |
Original Articles |
description |
Dormancy induction in temperate deciduous plants is thought to be regulated by short photoperiods, but low temperature has been shown to eliminate the short photoperiod requirement in northern ecotypes. An F2 population (191 plants) red osier dogwood ( Cornus sericea L.) derived from a polycross of an F1 population produced from reciprocal crosses of the parental clonal ecotypes, Northwest Territories (NWT, 62° N) and Utah (42° N), was examined to identify molecular markers of temperature-induced endodormancy. Dormancy induction curves were generated for each individual in the F2 population and a standard point prior to vegetative maturity (i-VM) was inferred from the change in slope of the dormancy acquisition curve. Under Saskatoon, Saskatchewan field conditions (52° N), the NWT ecotype entered i-VM on average 5−6 weeks before the Utah ecotype. Two sub-populations of the F2 population were distinguishable based on VM acquisition on exposure to low temperature but not to short photoperiods. A sequence characterized amplified region (SCAR) marker was developed that correctly (> 92%) identified individual plants within the F2 subpopulation that were responsive to low-temperature induction of VM. Timing of bud break was strongly associated with the timing of VM in the geographical ecotypes but not in the F2 population, indicating that these are separate traits under genetic control. |
format |
Text |
author |
Svendsen, Erl Wilen, Ron Stevenson, Robert Liu, Rensong Tanino, Karen K. |
author_facet |
Svendsen, Erl Wilen, Ron Stevenson, Robert Liu, Rensong Tanino, Karen K. |
author_sort |
Svendsen, Erl |
title |
A molecular marker associated with low-temperature induction of dormancy in red osier dogwood (Cornus sericea) |
title_short |
A molecular marker associated with low-temperature induction of dormancy in red osier dogwood (Cornus sericea) |
title_full |
A molecular marker associated with low-temperature induction of dormancy in red osier dogwood (Cornus sericea) |
title_fullStr |
A molecular marker associated with low-temperature induction of dormancy in red osier dogwood (Cornus sericea) |
title_full_unstemmed |
A molecular marker associated with low-temperature induction of dormancy in red osier dogwood (Cornus sericea) |
title_sort |
molecular marker associated with low-temperature induction of dormancy in red osier dogwood (cornus sericea) |
publisher |
Oxford University Press |
publishDate |
2007 |
url |
http://treephys.oxfordjournals.org/cgi/content/short/27/3/385 https://doi.org/10.1093/treephys/27.3.385 |
geographic |
Northwest Territories |
geographic_facet |
Northwest Territories |
genre |
Northwest Territories |
genre_facet |
Northwest Territories |
op_relation |
http://treephys.oxfordjournals.org/cgi/content/short/27/3/385 http://dx.doi.org/10.1093/treephys/27.3.385 |
op_rights |
Copyright (C) 2007, Oxford University Press |
op_doi |
https://doi.org/10.1093/treephys/27.3.385 |
container_title |
Tree Physiology |
container_volume |
27 |
container_issue |
3 |
container_start_page |
385 |
op_container_end_page |
397 |
_version_ |
1766150524056371200 |