Environmental responsiveness of flowering time in cassava genotypes and associated transcriptome changes.

Cassava is an important food security crop in tropical regions of the world. Cassava improvement by breeding is limited by its delayed and poor production of flowers, such that cassava flowering under field conditions indirectly lengthens the breeding cycle. By studying genotype and environment inte...

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Autores principales:	Deborah N Oluwasanya, Andreas Gisel, Livia Stavolone, Tim L Setter
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/95927c7312324f9286ded672ccd93eb2
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spelling	oai:doaj.org-article:95927c7312324f9286ded672ccd93eb22021-12-02T20:06:44ZEnvironmental responsiveness of flowering time in cassava genotypes and associated transcriptome changes.1932-620310.1371/journal.pone.0253555https://doaj.org/article/95927c7312324f9286ded672ccd93eb22021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0253555https://doaj.org/toc/1932-6203Cassava is an important food security crop in tropical regions of the world. Cassava improvement by breeding is limited by its delayed and poor production of flowers, such that cassava flowering under field conditions indirectly lengthens the breeding cycle. By studying genotype and environment interaction under two Nigerian field conditions (Ubiaja and Ibadan) and three controlled temperature conditions (22°C/18°C, 28/24°C and 34/30°C (day/night)), we found that while early flowering genotypes flowered at similar times and rates under all growing conditions (unfavorable and favorable field and controlled-temperature environments), late flowering genotypes were environmentally sensitive such that they were substantially delayed in unfavorable environments. On the basis of nodes-to-flower, flowering of late genotypes approached the flowering time of early flowering genotypes under relatively cool Ubiaja field conditions and in growth chambers at 22°C, whereas warmer temperatures elicited a delaying effect. Analysis of transcriptomes from leaves of field and controlled-temperature environments revealed that conditions which promote early flowering in cassava have low expression of the flowering repressor gene TEMPRANILLO 1 (TEM1), before and after flowering. Expression data of field plants showed that the balance between flower stimulatory and inhibitory signaling appeared to correlate with flowering time across the environments and genotypes.Deborah N OluwasanyaAndreas GiselLivia StavoloneTim L SetterPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0253555 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Deborah N Oluwasanya Andreas Gisel Livia Stavolone Tim L Setter Environmental responsiveness of flowering time in cassava genotypes and associated transcriptome changes.
description	Cassava is an important food security crop in tropical regions of the world. Cassava improvement by breeding is limited by its delayed and poor production of flowers, such that cassava flowering under field conditions indirectly lengthens the breeding cycle. By studying genotype and environment interaction under two Nigerian field conditions (Ubiaja and Ibadan) and three controlled temperature conditions (22°C/18°C, 28/24°C and 34/30°C (day/night)), we found that while early flowering genotypes flowered at similar times and rates under all growing conditions (unfavorable and favorable field and controlled-temperature environments), late flowering genotypes were environmentally sensitive such that they were substantially delayed in unfavorable environments. On the basis of nodes-to-flower, flowering of late genotypes approached the flowering time of early flowering genotypes under relatively cool Ubiaja field conditions and in growth chambers at 22°C, whereas warmer temperatures elicited a delaying effect. Analysis of transcriptomes from leaves of field and controlled-temperature environments revealed that conditions which promote early flowering in cassava have low expression of the flowering repressor gene TEMPRANILLO 1 (TEM1), before and after flowering. Expression data of field plants showed that the balance between flower stimulatory and inhibitory signaling appeared to correlate with flowering time across the environments and genotypes.
format	article
author	Deborah N Oluwasanya Andreas Gisel Livia Stavolone Tim L Setter
author_facet	Deborah N Oluwasanya Andreas Gisel Livia Stavolone Tim L Setter
author_sort	Deborah N Oluwasanya
title	Environmental responsiveness of flowering time in cassava genotypes and associated transcriptome changes.
title_short	Environmental responsiveness of flowering time in cassava genotypes and associated transcriptome changes.
title_full	Environmental responsiveness of flowering time in cassava genotypes and associated transcriptome changes.
title_fullStr	Environmental responsiveness of flowering time in cassava genotypes and associated transcriptome changes.
title_full_unstemmed	Environmental responsiveness of flowering time in cassava genotypes and associated transcriptome changes.
title_sort	environmental responsiveness of flowering time in cassava genotypes and associated transcriptome changes.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/95927c7312324f9286ded672ccd93eb2
work_keys_str_mv	AT deborahnoluwasanya environmentalresponsivenessoffloweringtimeincassavagenotypesandassociatedtranscriptomechanges AT andreasgisel environmentalresponsivenessoffloweringtimeincassavagenotypesandassociatedtranscriptomechanges AT liviastavolone environmentalresponsivenessoffloweringtimeincassavagenotypesandassociatedtranscriptomechanges AT timlsetter environmentalresponsivenessoffloweringtimeincassavagenotypesandassociatedtranscriptomechanges
_version_	1718375374842232832

Environmental responsiveness of flowering time in cassava genotypes and associated transcriptome changes.

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