Genetic mapping of day-neutrality in cultivated strawberry

P. Castro; J. M. Bushakra; P. Stewart; C. K. Weebadde; D. Wang; J. F. Hancock; C. E. Finn; J. J. Luby; K. S. Lewers

doi:10.1007/s11032-015-0250-4

Genetic mapping of day-neutrality in cultivated strawberry

P. Castro, J. M. Bushakra, P. Stewart, C. K. Weebadde, D. Wang, J. F. Hancock, C. E. Finn, J. J. Luby, K. S. Lewers

Horticultural Science

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

Day-neutrality is a highly desirable trait in strawberry (Fragaria L.)-breeding programs worldwide due to its importance in extending the harvest season in commercial production. Day-neutral genotypes are photoperiod insensitive and will initiate flowers under any photoperiod conditions as long as temperatures are moderate (below 30/26 °C day/night). In the current study, the inheritance of day-neutrality was investigated using an F₁ population derived from the cross ‘Tribute’ × ‘Honeoye’. The day-neutral trait was scored qualitatively [day-neutral (DN) or short-day (SD)], and quantitatively (number of weeks of flowering). When qualitatively scored in five locations, the DN trait fit a 1:1 segregation ratio in the hot summers of Maryland (MD), Minnesota (MN) and Michigan (MI). Segregation was skewed toward additional DN progeny in the cooler summers of California (CA) and Oregon (OR). Regardless of evaluation location, the trait was mapped on linkage group IV-T-1 of the ‘Tribute’ map near the markers ChFaM148-184T and ChFaM011-163T. Quantitative-trait loci (QTL) for number of weeks of flowering in MD and CA and for stolon or ‘runner’ production in MN, MI and OR also were identified on linkage group IV-T-1 of the ‘Tribute’ map. These QTL were significantly associated with the qualitatively scored trait and its closely linked molecular markers. The marker ChFaM148-184T explained 63.8 % of the total phenotypic variation for the number of weeks of flowering for MD and 32.4 % of the total phenotypic variation for runner production in MN. Consequently, it was hypothesized that a single major gene or tightly linked cluster of genes in coupling control day-neutrality in this population. The results found in the current study suggest that day-neutrality can be qualitatively scored at least in the locations where the temperatures do not allow SD plants to behave as DN.

Original language	English (US)
Journal	Molecular Breeding
Volume	35
Issue number	2
DOIs	https://doi.org/10.1007/s11032-015-0250-4
State	Published - Feb 2015

Bibliographical note

Funding Information:
This project was partially funded by the USDA Cooperative State Research, Education and Extension Service—National Research Initiative—Plant Genome Program (Award # 2005-35300-15468), USDA-ARS Projects 1245-21220-254-00 and 5358-21220-002-00, Driscoll Strawberry Associates, Inc., Michigan State University and the University of Minnesota. Mention of trade names or commercial products in this publication is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the U.S. Department of Agriculture or any of the other agencies involved in this research.

Publisher Copyright:
© 2015, Springer Science+Business Media Dordrecht (outside the USA).

Keywords

Everbearing
Linkage map
Photoperiod insensitivity
QTL map
Remontant

Access

10.1007/s11032-015-0250-4

OpenUrl availability

Full text

Cite this

@article{c0e5aade203f489fb2b36462f931f531,

title = "Genetic mapping of day-neutrality in cultivated strawberry",

abstract = "Day-neutrality is a highly desirable trait in strawberry (Fragaria L.)-breeding programs worldwide due to its importance in extending the harvest season in commercial production. Day-neutral genotypes are photoperiod insensitive and will initiate flowers under any photoperiod conditions as long as temperatures are moderate (below 30/26 °C day/night). In the current study, the inheritance of day-neutrality was investigated using an F1 population derived from the cross {\textquoteleft}Tribute{\textquoteright} × {\textquoteleft}Honeoye{\textquoteright}. The day-neutral trait was scored qualitatively [day-neutral (DN) or short-day (SD)], and quantitatively (number of weeks of flowering). When qualitatively scored in five locations, the DN trait fit a 1:1 segregation ratio in the hot summers of Maryland (MD), Minnesota (MN) and Michigan (MI). Segregation was skewed toward additional DN progeny in the cooler summers of California (CA) and Oregon (OR). Regardless of evaluation location, the trait was mapped on linkage group IV-T-1 of the {\textquoteleft}Tribute{\textquoteright} map near the markers ChFaM148-184T and ChFaM011-163T. Quantitative-trait loci (QTL) for number of weeks of flowering in MD and CA and for stolon or {\textquoteleft}runner{\textquoteright} production in MN, MI and OR also were identified on linkage group IV-T-1 of the {\textquoteleft}Tribute{\textquoteright} map. These QTL were significantly associated with the qualitatively scored trait and its closely linked molecular markers. The marker ChFaM148-184T explained 63.8 % of the total phenotypic variation for the number of weeks of flowering for MD and 32.4 % of the total phenotypic variation for runner production in MN. Consequently, it was hypothesized that a single major gene or tightly linked cluster of genes in coupling control day-neutrality in this population. The results found in the current study suggest that day-neutrality can be qualitatively scored at least in the locations where the temperatures do not allow SD plants to behave as DN.",

keywords = "Everbearing, Linkage map, Photoperiod insensitivity, QTL map, Remontant",

author = "P. Castro and Bushakra, {J. M.} and P. Stewart and Weebadde, {C. K.} and D. Wang and Hancock, {J. F.} and Finn, {C. E.} and Luby, {J. J.} and Lewers, {K. S.}",

note = "Funding Information: This project was partially funded by the USDA Cooperative State Research, Education and Extension Service—National Research Initiative—Plant Genome Program (Award # 2005-35300-15468), USDA-ARS Projects 1245-21220-254-00 and 5358-21220-002-00, Driscoll Strawberry Associates, Inc., Michigan State University and the University of Minnesota. Mention of trade names or commercial products in this publication is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the U.S. Department of Agriculture or any of the other agencies involved in this research. Publisher Copyright: {\textcopyright} 2015, Springer Science+Business Media Dordrecht (outside the USA).",

year = "2015",

month = feb,

doi = "10.1007/s11032-015-0250-4",

language = "English (US)",

volume = "35",

journal = "Molecular Breeding",

issn = "1380-3743",

publisher = "Springer Netherlands",

number = "2",

}

TY - JOUR

T1 - Genetic mapping of day-neutrality in cultivated strawberry

AU - Castro, P.

AU - Bushakra, J. M.

AU - Stewart, P.

AU - Weebadde, C. K.

AU - Wang, D.

AU - Hancock, J. F.

AU - Finn, C. E.

AU - Luby, J. J.

AU - Lewers, K. S.

N1 - Funding Information: This project was partially funded by the USDA Cooperative State Research, Education and Extension Service—National Research Initiative—Plant Genome Program (Award # 2005-35300-15468), USDA-ARS Projects 1245-21220-254-00 and 5358-21220-002-00, Driscoll Strawberry Associates, Inc., Michigan State University and the University of Minnesota. Mention of trade names or commercial products in this publication is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the U.S. Department of Agriculture or any of the other agencies involved in this research. Publisher Copyright: © 2015, Springer Science+Business Media Dordrecht (outside the USA).

PY - 2015/2

Y1 - 2015/2

N2 - Day-neutrality is a highly desirable trait in strawberry (Fragaria L.)-breeding programs worldwide due to its importance in extending the harvest season in commercial production. Day-neutral genotypes are photoperiod insensitive and will initiate flowers under any photoperiod conditions as long as temperatures are moderate (below 30/26 °C day/night). In the current study, the inheritance of day-neutrality was investigated using an F1 population derived from the cross ‘Tribute’ × ‘Honeoye’. The day-neutral trait was scored qualitatively [day-neutral (DN) or short-day (SD)], and quantitatively (number of weeks of flowering). When qualitatively scored in five locations, the DN trait fit a 1:1 segregation ratio in the hot summers of Maryland (MD), Minnesota (MN) and Michigan (MI). Segregation was skewed toward additional DN progeny in the cooler summers of California (CA) and Oregon (OR). Regardless of evaluation location, the trait was mapped on linkage group IV-T-1 of the ‘Tribute’ map near the markers ChFaM148-184T and ChFaM011-163T. Quantitative-trait loci (QTL) for number of weeks of flowering in MD and CA and for stolon or ‘runner’ production in MN, MI and OR also were identified on linkage group IV-T-1 of the ‘Tribute’ map. These QTL were significantly associated with the qualitatively scored trait and its closely linked molecular markers. The marker ChFaM148-184T explained 63.8 % of the total phenotypic variation for the number of weeks of flowering for MD and 32.4 % of the total phenotypic variation for runner production in MN. Consequently, it was hypothesized that a single major gene or tightly linked cluster of genes in coupling control day-neutrality in this population. The results found in the current study suggest that day-neutrality can be qualitatively scored at least in the locations where the temperatures do not allow SD plants to behave as DN.

AB - Day-neutrality is a highly desirable trait in strawberry (Fragaria L.)-breeding programs worldwide due to its importance in extending the harvest season in commercial production. Day-neutral genotypes are photoperiod insensitive and will initiate flowers under any photoperiod conditions as long as temperatures are moderate (below 30/26 °C day/night). In the current study, the inheritance of day-neutrality was investigated using an F1 population derived from the cross ‘Tribute’ × ‘Honeoye’. The day-neutral trait was scored qualitatively [day-neutral (DN) or short-day (SD)], and quantitatively (number of weeks of flowering). When qualitatively scored in five locations, the DN trait fit a 1:1 segregation ratio in the hot summers of Maryland (MD), Minnesota (MN) and Michigan (MI). Segregation was skewed toward additional DN progeny in the cooler summers of California (CA) and Oregon (OR). Regardless of evaluation location, the trait was mapped on linkage group IV-T-1 of the ‘Tribute’ map near the markers ChFaM148-184T and ChFaM011-163T. Quantitative-trait loci (QTL) for number of weeks of flowering in MD and CA and for stolon or ‘runner’ production in MN, MI and OR also were identified on linkage group IV-T-1 of the ‘Tribute’ map. These QTL were significantly associated with the qualitatively scored trait and its closely linked molecular markers. The marker ChFaM148-184T explained 63.8 % of the total phenotypic variation for the number of weeks of flowering for MD and 32.4 % of the total phenotypic variation for runner production in MN. Consequently, it was hypothesized that a single major gene or tightly linked cluster of genes in coupling control day-neutrality in this population. The results found in the current study suggest that day-neutrality can be qualitatively scored at least in the locations where the temperatures do not allow SD plants to behave as DN.

KW - Everbearing

KW - Linkage map

KW - Photoperiod insensitivity

KW - QTL map

KW - Remontant

UR - http://www.scopus.com/inward/record.url?scp=84922708870&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84922708870&partnerID=8YFLogxK

U2 - 10.1007/s11032-015-0250-4

DO - 10.1007/s11032-015-0250-4

M3 - Article

AN - SCOPUS:84922708870

SN - 1380-3743

VL - 35

JO - Molecular Breeding

JF - Molecular Breeding

IS - 2

ER -

Genetic mapping of day-neutrality in cultivated strawberry

Abstract

Bibliographical note

Keywords

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this