Growth promotion of interspecific hybrid embryos between Cucumis anguria and Melon (C. melo) by fruit heating

Wild species of the genus Cucumis, such as C. anguria, are resistant to various melon (C. melo) diseases such as Fusarium wilt race 1.2 and are anticipated as genetic resources of melon. However, in the interspecific crosses between C. anguria and melon, the abortion of the embryos was observed in t...

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Main Authors: Yuichi Matsumoto, Mako Tsunamoto
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2022-03-01
Series:Horticultural Plant Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2468014121001473
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author Yuichi Matsumoto
Mako Tsunamoto
author_facet Yuichi Matsumoto
Mako Tsunamoto
author_sort Yuichi Matsumoto
collection DOAJ
description Wild species of the genus Cucumis, such as C. anguria, are resistant to various melon (C. melo) diseases such as Fusarium wilt race 1.2 and are anticipated as genetic resources of melon. However, in the interspecific crosses between C. anguria and melon, the abortion of the embryos was observed in the early growth stage and could not be regenerated even when cultured. Therefore, for embryo rescue, it is necessary to promote embryo growth during abortion occurrence. This study investigated the effects of fruit heating on embryo growth in interspecific hybrids of C. anguria and melon. In the heating device, the minimum night temperature around the fruit was maintained above 21.5 °C. The ovule grain area of C. anguria × MR-1 with fruit heating was significantly enlarged compared to that without fruit-heating. It was also significantly enlarged compared with the ovule grain area of C. anguria self-pollination. Although, in C. anguria × MR-1 without fruit-heating, no embryo was observed until 10 days after pollination (DAP), and pre-embryos were observed at 13 DAP. Conversely, in C. anguria × MR-1 with fruit-heating, pre-embryos were even observed at 10 DAP. These results suggest that the possibility of embryo or ovule culture regeneration has increased due to embryo growth promotion.
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spelling doaj.art-d04fe3cd5ea14abd9d32b272369a068b2024-04-16T14:59:37ZengKeAi Communications Co., Ltd.Horticultural Plant Journal2468-01412022-03-0182215220Growth promotion of interspecific hybrid embryos between Cucumis anguria and Melon (C. melo) by fruit heatingYuichi Matsumoto0Mako Tsunamoto1Corresponding author. Tel.:+81955774484.; Center for Education and Research in Agricultural Innovation, Faculty of Agriculture, Saga University, Saga 8470021, JapanCenter for Education and Research in Agricultural Innovation, Faculty of Agriculture, Saga University, Saga 8470021, JapanWild species of the genus Cucumis, such as C. anguria, are resistant to various melon (C. melo) diseases such as Fusarium wilt race 1.2 and are anticipated as genetic resources of melon. However, in the interspecific crosses between C. anguria and melon, the abortion of the embryos was observed in the early growth stage and could not be regenerated even when cultured. Therefore, for embryo rescue, it is necessary to promote embryo growth during abortion occurrence. This study investigated the effects of fruit heating on embryo growth in interspecific hybrids of C. anguria and melon. In the heating device, the minimum night temperature around the fruit was maintained above 21.5 °C. The ovule grain area of C. anguria × MR-1 with fruit heating was significantly enlarged compared to that without fruit-heating. It was also significantly enlarged compared with the ovule grain area of C. anguria self-pollination. Although, in C. anguria × MR-1 without fruit-heating, no embryo was observed until 10 days after pollination (DAP), and pre-embryos were observed at 13 DAP. Conversely, in C. anguria × MR-1 with fruit-heating, pre-embryos were even observed at 10 DAP. These results suggest that the possibility of embryo or ovule culture regeneration has increased due to embryo growth promotion.http://www.sciencedirect.com/science/article/pii/S2468014121001473Cucumis anguria L.Interspecific crossMelonNight temperatureOvule area
spellingShingle Yuichi Matsumoto
Mako Tsunamoto
Growth promotion of interspecific hybrid embryos between Cucumis anguria and Melon (C. melo) by fruit heating
Horticultural Plant Journal
Cucumis anguria L.
Interspecific cross
Melon
Night temperature
Ovule area
title Growth promotion of interspecific hybrid embryos between Cucumis anguria and Melon (C. melo) by fruit heating
title_full Growth promotion of interspecific hybrid embryos between Cucumis anguria and Melon (C. melo) by fruit heating
title_fullStr Growth promotion of interspecific hybrid embryos between Cucumis anguria and Melon (C. melo) by fruit heating
title_full_unstemmed Growth promotion of interspecific hybrid embryos between Cucumis anguria and Melon (C. melo) by fruit heating
title_short Growth promotion of interspecific hybrid embryos between Cucumis anguria and Melon (C. melo) by fruit heating
title_sort growth promotion of interspecific hybrid embryos between cucumis anguria and melon c melo by fruit heating
topic Cucumis anguria L.
Interspecific cross
Melon
Night temperature
Ovule area
url http://www.sciencedirect.com/science/article/pii/S2468014121001473
work_keys_str_mv AT yuichimatsumoto growthpromotionofinterspecifichybridembryosbetweencucumisanguriaandmeloncmelobyfruitheating
AT makotsunamoto growthpromotionofinterspecifichybridembryosbetweencucumisanguriaandmeloncmelobyfruitheating