Cytology of West-Himalayan Labiatae: Tribe Satureineae

Gill, L. S.

doi:10.1080/00087114.1971.10796427

Cited by 20 publications

(23 citation statements)

References 5 publications

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“…Salvia is highly polybasic with x=6-13, 15, 17, 19 (Darlington and Wylie l. c.). Gill (1971a) The earlier record of 2n=34 (Mehra andGill 1968, Gill 1971b) for the species is confirmed and it is diploid on x=17, suggested by Gill (1971b).…”

Section: Hyptis Suaveolenssupporting

confidence: 53%

“…The bivalents were unequal in size . Ear lier, Gill (1971b) also recorded n=32 for this and the other Himalayan species P . parvilora and suggested x=8 for the genus.…”

Section: Hyptis Suaveolensmentioning

confidence: 99%

“…It is of interest to note that Yamane (1950) reported variable chromosome numbers 2n=28-40 for this species from Japan. Gill (1971b) Cytological studies in the populations from Mussoorie (W. Himalayas), showed n=20, which number was earlier unknown in the species. Other chromosome numbers known in the species are n=10 (Scheerer 1939, Reese 1953, Love 1954, Majovsky et al 1970, Gill 1971 and n=18 (Bothner 1970).…”

Section: Hyptis Suaveolensmentioning

confidence: 99%

“…It seems to exist as two cytological types in the Himalayas with n=14 (Gill 1971b) and n=14+0-2B (Authors). A close comparison of the vouchers of these , however, did not reveal any noticeable morphological variation.…”

Section: Hyptis Suaveolensmentioning

confidence: 99%

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Cytological Studies in Some North Indian Labiatae

Vij

Kashyap

1976

cytologia

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Section: Hyptis Suaveolenssupporting

confidence: 53%

“…The bivalents were unequal in size . Ear lier, Gill (1971b) also recorded n=32 for this and the other Himalayan species P . parvilora and suggested x=8 for the genus.…”

Section: Hyptis Suaveolensmentioning

confidence: 99%

Section: Hyptis Suaveolensmentioning

confidence: 99%

Section: Hyptis Suaveolensmentioning

confidence: 99%

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Cytological Studies in Some North Indian Labiatae

Vij

Kashyap

1976

cytologia

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“…Seven species (including a synonym) of Mosla have been cytologically studied previously and documented their chromosome numbers as n=9, 2n=18 and 2n=36 (e.g., Sugiura 1931;Suzuka 1953;Mehra and Gill 1968;Gill 1971Gill , 1984Probatova and Sokolovskaya 1986;Sokolovskaya et al 1986;Zhang and Xu 1988;Hsieh and Huang 1999), and these studies are only chromosome numbers reports. This paper reports detailed karyomorpholoies (the resting nucleus and the mitotic metaphase chromosomes) in the Japanese species of Mosla.…”

mentioning

confidence: 99%

Comparative karyomorohplogical studies in four species and one variety of Mosla Buch.-Ham. ex Maxim. (Lamiaceae) in Japan

Funamoto

Ogawa

Kariyama³

2014

Chromosome Botany

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ABSTRACT. Karyomorphology of four species and one variety of Japanese Mosla were observed. They had commonly chromosomal characters at resting nuclei of the complex chromocenter type, and the mitotic metaphase cells showed 2n=36 for M. japonica, 2n=18 for M. chinenis, M. scabra, M. dianthera and M. dianthera var. nana. The chromosome numbers of 2n=18 and 36 were considered diploid and tetraploid, respectively if the basic number x=9 was accepted. The chromosome number of 2n=18 for M. dianthera var. nana was reported here for the first time, and that of the other four species were verified with the previous reports. The karyotypes of five taxa had commonly similar karyomorphology to each other except for chromosome numbers; small sized chromosomes (2.2 to 1.1 µm long), mono-modal (gradual) decrease in chromosome length from the longest to the shortest chromosomes, and consists of median-and submedian-centromeric chromosomes. The genus Mosla Buch.-Ham. ex Maxim. is one of the three genera in the subtribe Perillinae Briq., the family Lamiaceae (Labiatae), consists of about 22 species (Wu and Li 1977b;Li and Hedge 1994), that are commonly annual herbs and aromatic plants, and grow in grassy slopes, forest margins, hills thickets, open hills and stream-sides in temperate regions of India, Southeast Asia and East Asia. Among the species of this genus, 12 species are found in China (Li and Hedge 1994) and four species and one variety grow in Japan (Murata and Yamazaki 1993). KEYWORDS:Seven species (including a synonym) of Mosla have been cytologically studied previously and documented their chromosome numbers as n=9, 2n=18 and 2n=36 (e.g., Sugiura 1931;Suzuka 1953;Mehra and Gill 1968;Gill 1971Gill , 1984Probatova and Sokolovskaya 1986;Sokolovskaya et al. 1986;Zhang and Xu 1988;Hsieh and Huang 1999), and these studies are only chromosome numbers reports. This paper reports detailed karyomorpholoies (the resting nucleus and the mitotic metaphase chromosomes) in the Japanese species of Mosla. MATERIALS AND METHODSSixty-nine plants of four species and one variety of Mosla were collected in 14 localities in Japan ( Fig. 1; Table 1), and cultivated in unglazed plant-pots in shade place in the experimental garden of Showa Pharmaceutical University. Chromosome observations were made in meristematic cells of fresh root tips. They were cut off 5-10 mm long and pretreated in 2 mM 8-hydroxyquinoline at ca 20ºC for 4 h and then fixed in 45% acetic acid at ca 2ºC for 10 min. They were macerated in a mixture of 45% acetic acid and 1N hydrochloric acid (1:1) at ca 60ºC for 20-23 sec and were then stained with 2% aceto-orcein at room temperature in moist chamber with 45% acetic acid for ca 30 min and were prepared by the conventional squash method. The slides were faintly heated under an alcohol frame for 1-2 sec before observation. Measurements of chromosome length were made in each average length in several good metaphase cells.Morphological type of the resting nuclei was classified for Tanaka (1971, 1977), and classifications of mit...

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