Morphology and Cytology of a New Species of &lt;i&gt;Coix&lt;/i&gt; With 32 Chromosomes

Koul, A. K.; Paliwal, Ripusudan L.

doi:10.1508/cytologia.29.375

Cited by 14 publications

(10 citation statements)

References 7 publications

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“…Numerical variations in the chromosome complement of various species of Coix have been reported earlier (Koul and Paliwal 1964, Rao 1976a1976b1977, Venka -teswarlu et al 1976). However, a chromosomal variant reported by Koul and Paliwal (1964) deserves special mention in this context.…”

Section: Discussionmentioning

confidence: 79%

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Nullisomy to hexasomy in Coix gigantea (Poaceae).

Sapre

Barve

1984

CYTOLOGIA

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Section: Discussionmentioning

confidence: 79%

“…However, a chromosomal variant reported by Koul and Paliwal (1964) deserves special mention in this context. These authors have collect ed and described a Coix from Madhya Pradesh (India) having 32 chromosomes.…”

Section: Discussionmentioning

confidence: 98%

Nullisomy to hexasomy in Coix gigantea (Poaceae).

Sapre

Barve

1984

CYTOLOGIA

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“…The chromosome number of C. aquatica is (2n = 10) (Mangelsdorf and Reeves 1939;Nirodi 1955;Nirmala 2003;Barve and Sangeetha 2008). C. lacryma-jobi (2n = 20) while for C. gigantea it has been reported to be 2n = 12, 20, and 40 (Nirodi 1955;Venketshvarlu and Rao 1956;Koul and Paliwal 1964;Christhopher and Jacob 1991).…”

mentioning

confidence: 98%

“…Coix L. is the most widely distributed oriental genus of a monoecious tribe Maydeae, family Poaceae, is a wild relative of cultivated maize (Koul and Paliwal 1964). It is of wide occurrence in most of south-east Asian countries and of great economic importance as food, forage and medicinal plant, especially Coix lacryma jobi L. The genus Coix consists of four species (Bor 1960) whose chromosome numbers range from 2n = 10 to 40 and has the basic number x = 5 (Darlington and Wylie 1955;Fedorov 1974;Goldblatt 1984).…”

mentioning

confidence: 99%

Cytological studies in <i>Coix aquatica</i> Roxb. (2n =10): A possible origin of aneuploids

Shrimant

Chamle

2017

Chromosome Botany

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ABSTRACT:Coix aquatica (2n = 10) is one of the three species of Coix L. occurring in Maharashtra. The detailed meiotic behavior, chromosome number, and pollen fertility were studied in three distantly located populations of Coix aquatica Roxb. The progeny has been studied as single plant cytology for three consecutive generations. All the three populations of the species had the diploid chromosome number of 2n = 10, and morphologically they were all alike except some minor differences like height of the plant, number of tillers, shape and size of seed. The plants of the population from Tuljapur (Dist. Oosmanabad) had narrow leaves and comparatively smaller conchate seeds. The behavior of their chromosomes during meiosis was normal in first two generations. While screening the third open pollinated generation, three plants from the Aundha-nagnath shown different chromosomal behavior though the chromosome number was same i.e. 2n = 10. It results in to various abnormalities like, univalents at diakinesis, precocious movement at metaphase, laggards and early segregation in to chromatids during anaphase I etc. Therefore, the plants has been deeply investigated for results at the end of meiosis-II, and it is presented in the present communication.

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“…However, young actively growing leaf-tips (Baldwin 1939, Sharma and Sharma 1957, De Lautour 1960, Bennet 1964, stipule and tendril-tips (Das and Kalloo 1970), endo sperm, normal and irradiated (Bajer and Bajer 1956, Bajer 1961, Ambrose and Bailer 1960, young actively growing proembryos (Mujeeb, Waters and Bates 1978) and tapetal cells (Koul and Paliwal 1964) have also been the sources of obtaining somatic chromosomes for karyotype analysis. Das and Goswami (1968) added leaf sheath meristems-intercalary meristems-to the above list while working on the somatic chromosomes of barley.…”

mentioning

confidence: 99%