A cytological study of three diploid species of the genus Arachis L.

Resslar, P. M.; Gregory, W. C.

doi:10.1093/oxfordjournals.jhered.a109180

Cited by 23 publications

(10 citation statements)

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“…This indicates that the A genome of Arachis has undergone minor changes to result in different diploid species. The meiotic behaviour of hybrids between such species (Resslar andGregory 1978, Stalker andWynne 1978) also supports the assumption of minor chromosomal structural differentiation. These hybrids generally formed 10 bivalents but frequently nine bivalents and two univalents also.…”

Section: Discussionmentioning

confidence: 64%

Chromosome morphology in three diploid species of Arathis and its bearing on the genomes of groundnut (Arachis hypogaea L.).

Kirti¹,

Bharathi²,

Murty³

et al. 1983

CYTOLOGIA

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Section: Discussionmentioning

confidence: 64%

Chromosome morphology in three diploid species of Arathis and its bearing on the genomes of groundnut (Arachis hypogaea L.).

Kirti¹,

Bharathi²,

Murty³

et al. 1983

CYTOLOGIA

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“…An anther was placed on a microscope slide, squashed in propionic carmine (a refluxed, saturated solution of Alum Lake carmine in 45% propionic acid). A plastic toothpick was used for squashing and debris removal to avoid the introduction of iron into the stain (Resslar and Gregory, 1979). Pollen mother cells (PMCs) were observed and photographed without heating to prevent rupture ofthe PMC wall.…”

Section: Resultsmentioning

confidence: 99%

Microsporogenesis in Peanut (Arachis Hypogaea)

Willcox

Reed

Burns

et al. 1990

American J of Botany

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The stage of pollen development at the time of anther culture is an important factor in the production of haploids. The objectives of the current study were to develop a staining procedure for peanut (Arachis hypogaea L., ssp. hypogaea) microspores, to describe and document the stages of microsporogenesis in peanut, and to confirm a previous report concerning correlations of peanut floral bud shape with stage of microspore development. A staining procedure using propionic carmine provided adequate staining of pollen mother cells, microspores, and pollen. Pollen mother cells and microspores could easily be differentiated by their size and cell wall structure. Plants grown in a controlled environment were found to have highly synchronized microspore development, both within an anther and among anthers contained in the same bud. In addition, floral bud shape was confirmed as a reliable indicator of anther stage in peanuts.

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“…El par "A" es un buen marcador genético, ya que en cruzamientos interespecíficos entre especies que lo poseen se producen híbridos con viabilidad de polen superior a los híbridos entre especies con el par"A" o sin él ( Raman & Kesavan, 1965;Smartt et al, 1978;Resslar & Gregory, 1979;Raman, 1981;Singh, 1986;Stalker, 1991;'Stalker et al, 1991b).…”

Section: -0unclassified

Cromosomas y evolución en Arachis (Leguminosae)

Fernández¹,

Krapovickas²

1994

Bonplandia

118

112

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<div>Fueron analizadas citológicamente cuarenta y un especies pertenecientes a ocho de las nueve secciones del género Arachis. Se analizaron en detalle los cariotipos veinticuatro de las cuarenta y un especies. Todas las especies tienen un par de cromosomas con satélite, excepto A. valida, que tiene dos pares. Los satélites se clasifican en diez tipos. Las secciones Procumbentes, Erectoides, Extranervosae, Caulorrhizae, Rhizomatosae, Heteranthae y Trierectoides tienen sólo uno o dos tipos de cromosomas con satélite, mientras que la sect. Arachis tiene seis tipos. Un par de cromosomas pequeños se encuentran en la sect. Arachis, excepto en A.batizocoi, A. ipaensis, A. glandulifera, A. magna y A. benensis. A. glandulifera (sect. Arachis) tiene el cariotipo más asimétrico, con seis pares de cromosomas subtelocéntricos y A.guaranitica (sect. Trierectoides) tiene el cariotipo más simétrico. Esto apoya la hipótesis de que la sect. Trierectoides es la más antigua en el género y la sect. Arachis tiene un origen más reciente. Teniendo en cuenta los cariotipos, morfología externa y la distribución geográfica, A. duranensis y A. ipaensis son probablemente los donantes del genoma de A.hypogaea.</div>

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A cytological study of three diploid species of the genus Arachis L.

Cited by 23 publications

References 0 publications

Chromosome morphology in three diploid species of Arathis and its bearing on the genomes of groundnut (Arachis hypogaea L.).

Chromosome morphology in three diploid species of Arathis and its bearing on the genomes of groundnut (Arachis hypogaea L.).

Microsporogenesis in Peanut (Arachis Hypogaea)

Cromosomas y evolución en Arachis (Leguminosae)

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