Mutant Forms of Matthiola Resulting from Non-Disjunction

Frost, Howard B.; Mann, Margaret C.

doi:10.1086/280010

Cited by 21 publications

(3 citation statements)

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“…3b). Frost and Mann (1924) had reported that the morphological marker of long and wide leaves was a marker of a cultivar with a high double stock production rate. Previous investigations on the stock flower had shown changes of morphological characteristics in stock plants that give an especially high proportion of double-flowered progenies (Frost andLesley 1927, Emsweller et al 1937).…”

Section: -Reproductive Traitsmentioning

confidence: 99%

Meiotic behaviour and morpho-phenological variation in cut stock (Matthiola incanaL.) flower

Irani

Arab

2017

Folia Horticulturae

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Morpho-phenological and meiotic studies were performed in twelve cultivars of Matthiola incana. All of the cultivars were diploid (2n = 2x = 14) with basic chromosome number x = 7. A number of aneuploid PMCs (n + 1) were observed in plants of two cultivars, named 'Nobel' (NB) and 'Goddess' (GD), at the diakinesis stage. Trisomic individuals with the frequency of 20% and 5% and (2n + 1 = 15) somatic chromosomes were observed in seeds obtained from single-flowered plants of the cultivars NB and GD, respectively. An additional chromosome was mostly observed in the form of a chain trivalent or a rod univalent. Various meiotic abnormalities were found in all the cultivars to different degrees. In these cultivars, the percentage of cells with meiotic abnormalities was higher in anaphase I. Cytomixis was observed for the first time in Matthiola incana. ANOVA tests revealed significant differences in morpho-phenological characteristics. 'Nobel' differs from the others in all of the vegetative features investigated in this study. All the cultivars studied except 'Nobel' and 'Pacific Crimson' possessed high pollen fertility (> 90%). Five groups of the cultivars based on morpho-phenological features disagree with the clustering of cultivars based on meiotic traits. It is thought that the various morpho-phenological features observed among the cultivars could be due to their different genetic background and not only to meiotic anomalies.Ke y wor d s: aneuploidy, chiasma frequency, chromosome pairing, pollen fertility, vegetative and floral traits

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Section: -Reproductive Traitsmentioning

confidence: 99%

Meiotic behaviour and morpho-phenological variation in cut stock (Matthiola incanaL.) flower

Irani

Arab

2017

Folia Horticulturae

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“…Three forms with comparatively large extra chromosomes (Crenate, Narrow, and Dark) may be primary trisomics, each carrying three complete homologous chromosomes. Slender and two other extra chromosome types out of a total of nine produced by Snowflake have been shown to be fragment secondaries (FROST 1919;FROST and MANN 1924;FROST 1927, 1928;FROST 1927FROST , 1928FROST , 1931.…”

Section: The Slender Trisomicmentioning

confidence: 99%

Cytogenetics of a Trisomic of Matthiola Incana, Involving a Ring Chromosome and Somatic Instability of Singleness (Versus Doubleness) of Flowers and Shape of Leaves

Frost¹,

Lesley²,

Locke³

1959

Genetics

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OUBLE Matthiola flowers are completely sterile, since they consist of D masses of indefinitely replicated petals. Double-flowered plants can be obtained only from seed of singles that are heterozygous ( S s ) for doubleness, which is recessive to singleness. Any ordinary (diploid) floricultural variety consists of slightly more than 50 percent sterile doubles and slightly fewer fertile singles ( SAUNDERS 191 1 ) . The single line is kept permanently heterozygous for doubleness (eversporting or double-thrower) by a pollen lethal, 1, which sterilizes the single-carrying or SI pollen of Sl/sL plants and slightly reduces the viability of the S1 embryo sacs. This lethal is occasionally lost, in some races at least (GOLD-

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“…In no case has a nuclear distinction between the microspores and megaspores of a plant been proved to exist, but in Oenothera, the embryo-sac may be formed preferentially from a particular type of megaspore, to the exclusion of the rival type. A case not yet explained is that of the double stock, but the work of Snow (1925) suggests that in these plants elimination of male gametes of a particular type occurs, and the work of Frost and Mann (1924) shows that cytological irregularities are not uncommon, and may account for the phenomenon. Thus the suggestion that the phenomenon might be brought about by a segregation of allelomorphs in the soma, occurring before the formation of the male and female organs (Pellew, 1917) is no longer tenable.…”

Section: -2mentioning

confidence: 99%

The Genetics of Unlike Reciprocal Hybrids

Pellew¹

1929

Biological Reviews

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Mutant Forms of Matthiola Resulting from Non-Disjunction

Cited by 21 publications

References 0 publications

Meiotic behaviour and morpho-phenological variation in cut stock (Matthiola incanaL.) flower

Meiotic behaviour and morpho-phenological variation in cut stock (Matthiola incanaL.) flower

Cytogenetics of a Trisomic of Matthiola Incana, Involving a Ring Chromosome and Somatic Instability of Singleness (Versus Doubleness) of Flowers and Shape of Leaves

The Genetics of Unlike Reciprocal Hybrids

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