The Morphology of Somatic Chromosomes in Lilium

Stewart, R. N.

doi:10.1002/j.1537-2197.1947.tb12953.x

Cited by 75 publications

(33 citation statements)

References 26 publications

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“…All the previous researches (Stewart 1947;Smyth et al 1989;Siljak-Yakovlev et al 2003;Muratović et al 2005;Gao et al 2009) and present study confirmed that the tribe Lilieae has the basic chromosome number as x = 12. It's quite stable and the pattern of these 12 pairs of chromosomes was almost the same.…”

Section: Basic Chromosome Number and The Total Haploid Lengthsupporting

confidence: 91%

“…Figure 1 showed all secondary constrictions and intercalary satellites that found in chromosomes. Previous studies (Stewart 1947;Gao Yundong et al unpublished data) noticed that variations in the position of secondary constrictions were correlated with the type of chromatin distribution and the geographical distribution. Considering that the geographical distribution was always in accordance with their systematic positions, i.e.…”

Section: Secondary Constrictions and Intercalary Satellitesmentioning

confidence: 93%

“…Besides the arm length, there were other characters were added on the idiograms, including the locations of the secondary constrictions and the intercalary satellites. The intercalary satellites were considered to be important features in previous researchers (Stewart 1947;Gao et al 2009;Gao Yundong et al unpublished data; see Fig. 1 for these two features).…”

Section: Mean Haploid Idiogramsmentioning

confidence: 95%

“…There was considerable variation in karyotype asymmetry. The secondary constrictions were variable and some authors (Stewart 1947;Gao Yundong et al unpublished data) have recognized their probable functions in the genus Lilium. By superimposing these data onto the phylogenetic framework, the trends and patterns in karytotype evolution in Lilieae could be seen.…”

Section: Karyotype Structure In Lilieaementioning

confidence: 97%

“…Lophophorum Wang et Tang and a clade formed by Lilium duchartrei and L. lankongense, which was in accordance with their phylogenetic relationships in our research. Stewart (1947) investigated most of Lilium species in North America (The New World) and found that it was easy to differentiate them from the Old world's species. He pointed out that secondary constrictions correlated with chromatin distribution as well as with geographic distribution.…”

Section: Secondary Constrictions and Intercalary Satellitesmentioning

confidence: 99%

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Chromosome diversity and evolution in tribe Lilieae (Liliaceae) with emphasis on Chinese species

Gao

Zhou

et al. 2011

J Plant Res

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In this paper, karyotype data of the tribe Lilieae in China were analyzed and been superimposed onto a phylogenetic framework constructed by the internal transcribed spacer to investigate the karyotype evolution. Ten parameters for analyzing karyotype asymmetry were assessed and karyotypic idiogram of five genera of Lilieae were illustrated. The results showed that, the relationship of genera in Lilieae that inferred from Maximum Parsimony criteria and Bayesian Inference were congruent with previous studies, which focused on higher level of Liliales. The karyotype showed distinctive among genera, mainly expressed on the location and amount of secondary constrictions and intercalary satellites: the genus Notholirion have neither of them, and the genera Cardiocrinum and Fritillaria have the secondary constriction alone; the genera Lilium and Nomocharis showed both features, and the distribute pattern of the intercalary satellites showed similarity among related clades. The asymmetry that assessed by several methods indicated that the evolution trend of Lilieae did not follow a single direction, but different in each genus. On the sectional level of the genus Lilium (including Nomocharis) the karyotype evolution included three major periods. Combining the chromosomal structure variations and karyotype asymmetry, the chromosome diversity and evolution in Lilieae were quite clear in the light of molecular inference.

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Section: Basic Chromosome Number and The Total Haploid Lengthsupporting

confidence: 91%

Section: Secondary Constrictions and Intercalary Satellitesmentioning

confidence: 93%

Section: Mean Haploid Idiogramsmentioning

confidence: 95%

Section: Karyotype Structure In Lilieaementioning

confidence: 97%

Section: Secondary Constrictions and Intercalary Satellitesmentioning

confidence: 99%

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Chromosome diversity and evolution in tribe Lilieae (Liliaceae) with emphasis on Chinese species

Gao

Zhou

et al. 2011

J Plant Res

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Colchicine‐induced Polyploidy in Lilium Longiflorum

Emsweller

1949

American J of Botany

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Karyomorphological and SEM studies in newly discovered populations of a critically endangered medicinal plant — Lilium polyphyllum D. Don ex Royle from a high altitude protected area of north‐western Himalaya

Kumar

Singh²,

Singh

2021

Microscopy Res & Technique

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In this study, new populations of a critically endangered Himalayan herb, Lilium polyphyllum D. Don ex Royle have been reported from Chamba, Himachal Pradesh, India for the first time. Karyotypic, palynological, and spermological studies under the light microscope (LM) and scanning electron microscope (SEM) have been carried out on specimens from these populations with an aim to add more knowledge to the current database of the species. Presently studied individuals depicted a diploid (2x) chromosome count of 2n = 24, which is in confirmation with the previous reports from Kashmir Himalaya. Mitotic study showed a karyotype formula of 2n = 2x = 2m + 2sm + 4st + 16t, that is, 2 metacentric +2 submetacentric +4 acrocentric +16 telocentric chromosomes. LM and SEM observations revealed that the pollen grains are monosulcate, heteropolar, elliptical in polar view, and oblate with reticulate ornamentation. Based on the criteria of number, shape, and arrangement of columellae that form the muri, pollen grains in L. polyphyllum correspond to Martagon type. This is the first SEM based study on pollen grains and seeds of endangered Himalayan white lily. Based on the present ecological data collected we confirm the status of L. polyphyllum to be critically endangered in the study area.

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The Morphology of Somatic Chromosomes in Lilium

Cited by 75 publications

References 26 publications

Chromosome diversity and evolution in tribe Lilieae (Liliaceae) with emphasis on Chinese species

Chromosome diversity and evolution in tribe Lilieae (Liliaceae) with emphasis on Chinese species

Colchicine‐induced Polyploidy in Lilium Longiflorum

Karyomorphological and SEM studies in newly discovered populations of a critically endangered medicinal plant — Lilium polyphyllum D. Don ex Royle from a high altitude protected area of north‐western Himalaya

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