Different Growth and Sporulation Responses to Temperature Gradient among Obligate Apomictic Strains of <i>Ulva prolifera</i>

The green macroalga <i>Ulva prolifera</i> has a number of variants, some of which are asexual (independent from sexual variants). Although it has been harvested for food, the yield is decreasing. To meet market demand, developing elite cultivars is required. The present study investigate...

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Autores principales:	Yoichi Sato, Yutaro Kinoshita, Miho Mogamiya, Eri Inomata, Masakazu Hoshino, Masanori Hiraoka
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	macroalga <i>Ulva prolifera</i> obligate asexual strain relative growth rate sporulation land-based cultivation Botany QK1-989
Acceso en línea:	https://doaj.org/article/77b0f35942634bf58d6f8e44c5f11d05
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spelling	oai:doaj.org-article:77b0f35942634bf58d6f8e44c5f11d052021-11-25T18:44:18ZDifferent Growth and Sporulation Responses to Temperature Gradient among Obligate Apomictic Strains of <i>Ulva prolifera</i>10.3390/plants101122562223-7747https://doaj.org/article/77b0f35942634bf58d6f8e44c5f11d052021-10-01T00:00:00Zhttps://www.mdpi.com/2223-7747/10/11/2256https://doaj.org/toc/2223-7747The green macroalga <i>Ulva prolifera</i> has a number of variants, some of which are asexual (independent from sexual variants). Although it has been harvested for food, the yield is decreasing. To meet market demand, developing elite cultivars is required. The present study investigated the genetic stability of asexual variants, genotype (<i>hsp90</i> gene sequences) and phenotype variations across a temperature gradient (10–30 °C) in an apomictic population. Asexual variants were collected from six localities in Japan and were isolated as an unialgal strain. The <i>hsp90</i> gene sequences of six strains were different and each strain included multiple distinct alleles, suggesting that the strains were diploid and heterozygous. The responses of growth and sporulation versus temperature differed among strains. Differences in thermosensitivity among strains could be interpreted as the result of evolution and processes of adaptation to site-specific environmental conditions. Although carbon content did not differ among strains and cultivation temperatures, nitrogen content tended to increase at higher temperatures and there were differences among strains. A wide variety of asexual variants stably reproducing clonally would be advantageous in selecting elite cultivars for long-term cultivation. Using asexual variants as available resources for elite cultivars provides potential support for increasing the productivity of <i>U. prolifera</i>.Yoichi SatoYutaro KinoshitaMiho MogamiyaEri InomataMasakazu HoshinoMasanori HiraokaMDPI AGarticlemacroalga<i>Ulva prolifera</i>obligate asexual strainrelative growth ratesporulationland-based cultivationBotanyQK1-989ENPlants, Vol 10, Iss 2256, p 2256 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	macroalga <i>Ulva prolifera</i> obligate asexual strain relative growth rate sporulation land-based cultivation Botany QK1-989
spellingShingle	macroalga <i>Ulva prolifera</i> obligate asexual strain relative growth rate sporulation land-based cultivation Botany QK1-989 Yoichi Sato Yutaro Kinoshita Miho Mogamiya Eri Inomata Masakazu Hoshino Masanori Hiraoka Different Growth and Sporulation Responses to Temperature Gradient among Obligate Apomictic Strains of <i>Ulva prolifera</i>
description	The green macroalga <i>Ulva prolifera</i> has a number of variants, some of which are asexual (independent from sexual variants). Although it has been harvested for food, the yield is decreasing. To meet market demand, developing elite cultivars is required. The present study investigated the genetic stability of asexual variants, genotype (<i>hsp90</i> gene sequences) and phenotype variations across a temperature gradient (10–30 °C) in an apomictic population. Asexual variants were collected from six localities in Japan and were isolated as an unialgal strain. The <i>hsp90</i> gene sequences of six strains were different and each strain included multiple distinct alleles, suggesting that the strains were diploid and heterozygous. The responses of growth and sporulation versus temperature differed among strains. Differences in thermosensitivity among strains could be interpreted as the result of evolution and processes of adaptation to site-specific environmental conditions. Although carbon content did not differ among strains and cultivation temperatures, nitrogen content tended to increase at higher temperatures and there were differences among strains. A wide variety of asexual variants stably reproducing clonally would be advantageous in selecting elite cultivars for long-term cultivation. Using asexual variants as available resources for elite cultivars provides potential support for increasing the productivity of <i>U. prolifera</i>.
format	article
author	Yoichi Sato Yutaro Kinoshita Miho Mogamiya Eri Inomata Masakazu Hoshino Masanori Hiraoka
author_facet	Yoichi Sato Yutaro Kinoshita Miho Mogamiya Eri Inomata Masakazu Hoshino Masanori Hiraoka
author_sort	Yoichi Sato
title	Different Growth and Sporulation Responses to Temperature Gradient among Obligate Apomictic Strains of <i>Ulva prolifera</i>
title_short	Different Growth and Sporulation Responses to Temperature Gradient among Obligate Apomictic Strains of <i>Ulva prolifera</i>
title_full	Different Growth and Sporulation Responses to Temperature Gradient among Obligate Apomictic Strains of <i>Ulva prolifera</i>
title_fullStr	Different Growth and Sporulation Responses to Temperature Gradient among Obligate Apomictic Strains of <i>Ulva prolifera</i>
title_full_unstemmed	Different Growth and Sporulation Responses to Temperature Gradient among Obligate Apomictic Strains of <i>Ulva prolifera</i>
title_sort	different growth and sporulation responses to temperature gradient among obligate apomictic strains of <i>ulva prolifera</i>
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/77b0f35942634bf58d6f8e44c5f11d05
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Different Growth and Sporulation Responses to Temperature Gradient among Obligate Apomictic Strains of <i>Ulva prolifera</i>

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