First Report of Intraspecific Polyploidy (2&lt;i&gt;x&lt;/i&gt;, 4&lt;i&gt;x&lt;/i&gt;) in &lt;i&gt;Physochlaina praealta&lt;/i&gt; (Decne.) Miers. (Family: Solanaceae)

Singhal, Vijay Kumar; Tantray, Younas Rasheed; Kaur, Dalbir; Gupta, Raghbir Chand

doi:10.1508/cytologia.82.245

Cited by 6 publications

(3 citation statements)

References 37 publications

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“…Similar ndings from a research on the Australian grass Themeda triandra showed that diploid plants produce substantially smaller pollen than tetraploid plants (Godfree et al 2017;Singhal et al 2017).…”

Section: Discussionsupporting

confidence: 58%

Ploidy level affects the growth and yield attributes of Musa progenies

Sankar,

Kavino,

Auxcilia

et al. 2024

Preprint

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Polyploidy has an immense role in varietal development of agricultural crops particularly fruit crops which has significant impact on plant morphological and yield contributing traits. To study the effect of ploidy levels on growth and yield parameters between diploid, triploid and tetraploid progeny of banana hybrids, 46 banana hybrids were evaluated under field conditions. Stomatal size, pollen size, growth and bunch traits were measured in flowering phase. Significant difference between ploidy levels were observed for different traits. The “gigas” effect was seen in tetraploid plants. Ploidy levels were negatively linked with stomatal frequency and positively linked with guard cell length, number of chloroplasts per guard cell. Among the progenies, maximum pollen diameter was observed in tetraploids. However, triploids registered higher bunch and finger characters whereas diploids exhibits higher stomata frequency, pollen viability, germination, more suckers per plant, shorter time to phyllochron production, earlier flowering and harvest.

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Section: Discussionsupporting

confidence: 58%

Ploidy level affects the growth and yield attributes of Musa progenies

Sankar,

Kavino,

Auxcilia

et al. 2024

Preprint

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“…And by looking at these traits, polyploids in B. pubescens could be easily distinguished in the forests from the diploids. Similar type of analysis of morphological parameters which could be employed for the identification of polyploids in nature have been reported in Terminalia chebula (Gill et al 1982), Syzygium cumini (Gill and Singhal 1990), Ranunculus hirtellus (Kumar and Singhal 2011), Agrimonia eupatoria (Kumar et al 2014a), Silene vulgaris (Kumar et al 2014b), Inula grandiflora (Himshikha et al2017) and Physochlaina praealta (Singhal et al 2017).…”

Section: Discussionmentioning

confidence: 63%

Cytomorphological Comparison in Natural Intraspecific Cytotypes (2x, 4x) in Brachyactis pubescens from Northwest Himalayas, India

et al. 2018

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Intraspecific euploid cytotypes (2n=18, 36) were found in the wild plants of Brachyactis pubescens in North West Himalayas from the hills of Ladakh division of Jammu and Kashmir and Solang Valley, Kullu district, Himachal Pradesh. The plants with each ploidy level showed regular bivalent formation, equal segregation of chromosomes during anaphases and normal sporads. The 2x plants were found growing at higher elevations in the Kashmir Himalayas and adjoining hills of Afghanistan while the 4x plants grow at lower elevations in the Solang Valley, Himachal Pradesh. The 4x and 2x plants could be differentiated in various morphometric parameters. The 4x plants were noticed to be robust and much taller and show gigantism in leaf and floral characters besides depicting the increase in the size of trichomes, stomata and pollen grains. Analysis of meiotic chromosome pairing in the tetraploid taxa indicates towards its allopolyploid nature.

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“…The evolutionary consequences of inter-individual differences in pollen size depend, in part, on the relative importance of environmental and genetic controls for pollen size variation. For instance, pollen size increases with the level of ploidy at both the interspecific and intraspecific levels [22][23][24][25][26][27]. However, the relationship between pollen size and genome size is not straightforward, and their trajectories may not be linked [28,29].…”

Section: Introductionmentioning

confidence: 99%

Pollen Variability of Alnus glutinosa (L.) Gaerth. (Betulaceae) from Southern Range Edge Populations in Northern Morocco

Sahli,

Kassout,

Boselli

et al. 2023

IJPB

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Moroccan populations of Alnus glutinosa (L.) Gaerth. (Betulaceae) are found at the southern limit of the species’ range and are represented by tetraploid cytotypes with no available pollen data. The objective of this study was to assess the morphological and morphometric variability of the pollen, specifically focusing on pollen diameters and the number of apertures. To achieve this, we sampled 11 populations that are representative of the Moroccan distribution area of this species. We employed a hierarchical sampling design (11 populations, 10 trees per population, and from 30 to 300 pollen grains per tree, depending on the character measured) to examine different levels of variability: interpopulation, intrapopulation, and intraindividual. The results demonstrate that there is no discernible difference in the morphology or size of the pollen among the Moroccan tetraploid populations. However, we observed a high degree of intraspecific variability in pollen morphometric traits, but most of this variability is associated with the intraindividual level.

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First Report of Intraspecific Polyploidy (2<i>x</i>, 4<i>x</i>) in <i>Physochlaina praealta</i> (Decne.) Miers. (Family: Solanaceae)

Cited by 6 publications

References 37 publications

Ploidy level affects the growth and yield attributes of Musa progenies

Ploidy level affects the growth and yield attributes of Musa progenies

Cytomorphological Comparison in Natural Intraspecific Cytotypes (2<i>x</i>, 4<i>x</i>) in <i>Brachyactis pubescens</i> from Northwest Himalayas, India

Pollen Variability of Alnus glutinosa (L.) Gaerth. (Betulaceae) from Southern Range Edge Populations in Northern Morocco

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