Re-evaluation of some techniques and their effect on stimulating flowering in four Irish potato varieties in Louisiana

Abdel-Wahab, A. E.; Miller, J. Creighton

doi:10.1007/bf02862758

Cited by 7 publications

(2 citation statements)

References 4 publications

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“…Some studies have shown that stolon pruning can stimulate the aboveground growth in plants and improve the flowering and pollen quality of certain varieties ( Thijn, 1954 ; Jessup, 1958 ). However, some studies suggest that stolon removal enhances the growth of plants but does not impact flowering and pollen quality ( Abdel-Wahab and Miller, 1963 ; Plantenga et al., 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Pollen transcriptomic analysis provided insights into understanding the molecular mechanisms underlying grafting-induced improvement in potato fertility

Zhang,

Bai,

et al. 2024

Front. Plant Sci.

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IntroductionHeterologous grafting has been proven to be a valid approach to improving potato fertility, especially when grafting potatoes with other Solanaceae family plants. However, the mechanisms underlying grafting-induced improvement in potato fertility are still unknown.MethodsIn this study, a poor-fertility potato cultivar “Qingshu No. 9” (Q9) was grafted with a tomato cultivar “Zhongyan988” (ZY988) to study the effects of heterologous grafting in the former. The tuber yield was controlled by different grafting and cultivation approaches, and the correlation between tuber yield and pollen vigor was studied. Comparative transcriptomic analysis of the potential mechanisms of pollen in potato scion fertility changes.ResultGrafting with the tomato rootstock effectively promoted the flower and fruit formation in the scion potato and improved its pollen viability by 15%–20%. In addition, a significant negative correlation was observed between the potato tuber yield and pollen viability, suggesting a potential impact on the metabolic regulatory network related to tuber formation. From the comparative transcriptomic analysis between the pollens from Q9 self-grafted plants and Q9-tomato grafting scion, 513 differentially expressed genes (DEGs) were identified. These DEGs were found to be related to gametophyte and pollen development, carbohydrate metabolism, and protein processing. Thus, these DEGs might be involved in improved fertility after reduced tuberization in plants subjected to heterologous grafting.DiscussionPotato/tomato heterologous grafting significantly improved the pollen viability of scion potatoes and was associated with the absence of potato tubers. Heterologous grafting promotes the transcription of genes related to protein processing, carbohydrate metabolism, and pollen development in pollen cells, resulting in the production of fertile pollen. Our results provided initial clues to understanding the improvement of potato fertility using the heterologous grafting method, which might be a useful tool in assisted potato breeding.

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Section: Introductionmentioning

confidence: 99%

Pollen transcriptomic analysis provided insights into understanding the molecular mechanisms underlying grafting-induced improvement in potato fertility

Zhang,

Bai,

et al. 2024

Front. Plant Sci.

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“…Because flower initiation takes place before tuberization (Firman et al, 1991), it is expected that only flower development is affected by tuberization. Breeders have regularly tried to improve potato flower development by removing the tubers, with varying success (Thijn, 1954;Jessup, 1958;Abdel-Wahab and Miller, 1963;Weinheimer and Woodbury, 1966). As there are contrasting results concerning competition between flowering and tuberization, it must be discovered if competition is really taking place.…”

Section: Interaction Between Tuberization and Floweringmentioning

confidence: 99%

The enigma of dual reproduction in potato : casting light on tuberization and flowering

Plantenga¹

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Solanum tuberosum (potato) can reproduce through tubers and through seeds. Recent developments have enabled hybrid breeding and propagation from seeds in this crop. This makes potato flowering a new focus of research. Tuberization and presumably flowering followed by seed set are strongly regulated by environmental cues. A well-studied environmental regulator of tuber formation is day length. Photoreceptors are involved in this photoperiodic control of tuberization, suggesting light spectrum may be an important factor for tuberization. However, it is not known how photoreceptors control potato flowering. Here, we aim to elucidate the influence of light spectrum and photoperiod on tuber and flower formation, by growing three potato genotypes in climate chambers with light-emitting diode (LED) lighting and additional farred and blue LEDs under long and short days. Far-red light accelerated tuber formation up to eleven days and blue light slightly delayed it up to four days. An effect of light spectrum on flowering time was not found. Long photoperiods delayed tuber formation compared to short-day conditions in two of the three tested genotypes. Aside from one genotype which only flowered in long days, no effect of photoperiod on flowering time was found.

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Tuber Formation in Potato: Induction, Initiation, and Growth

Ewing

Struik

1992

Horticultural Reviews

246

137

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Re-evaluation of some techniques and their effect on stimulating flowering in four Irish potato varieties in Louisiana

Cited by 7 publications

References 4 publications

Pollen transcriptomic analysis provided insights into understanding the molecular mechanisms underlying grafting-induced improvement in potato fertility

Pollen transcriptomic analysis provided insights into understanding the molecular mechanisms underlying grafting-induced improvement in potato fertility

The enigma of dual reproduction in potato : casting light on tuberization and flowering

Tuber Formation in Potato: Induction, Initiation, and Growth

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