Cytology of Two Members of Campanulaceae and Lobeliaceae and Their Interrelationships

Bhattacharyya, N. K.

doi:10.1508/cytologia.37.435

Cited by 1 publication

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References 14 publications

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“…J. D. Hook. Hedberg (1957); Hedberg and Hedberg (1977); Mabberley (I 974b) de Vilmorin and Simonet (1927)'; Sugiura (l936a: b: 1937Sugiura (l936a: b: , 1939) Bhattacharyya (1972) Thulin (1983 de Vilmorin and Simonet (1927); Spooner et a!. (1987); Lammers andHensold (1992) Armand (1912)';de Vilmorin and Simonet (1927); Ubera (1981); Ruiz de Clavijo and Infante (1986); Dalgaard (1986); Luque, Mejias, and Diaz Lifante (1988).…”

Section: Discussionmentioning

confidence: 99%

Chromosome Numbers of Campanulaceae. Iii. Review and Integration of Data for Subfamily Lobelioideae

Lammers

1993

American J of Botany

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Chromosome numbers are now known for 153 species in 21 genera of Lobelioideae (Campanulaceae); this represents almost 13% of the species and 70% of the genera in the subfamily. Numbers reported are n = 6, 7, 8, 9, 10, 11, 12, 13, 14, 19, 21, 35, 70. The subfamily as a whole has x = 7; the best documented exception is Downingia and its allies with x = 11. Only four genera show interspecific variation in chromosome number: Downingia (n = 6, 8, 9, 10, 11, 12); Lobelia (n = 6, 7, 9, 12, 13, 14, 19, 21); Pralia (n = 6, 7, 13, 14, 21, 35, 70); and Solenopsis (n = 11, 14). Intraspecific variation occurs in 13 species, with as many as four different cytotypes in one species. The herbaceous members of the subfamily as a group are quite variable, showing the entire range of chromosome numbers, including numerous dysploids, but are predominantly diploid. The woody species, by contrast, are much less variable; nearly all of the species are tetraploid, with only a few diploids and hexaploids and no dysploid numbers known. These data support the hypothesis that woodiness is apomorphic within the subfamily. A general trend of higher chromosome numbers at higher latitudes and higher elevations is evident within the subfamily. The chromosome number of Apetahia raiateensis (n = 14) is reported here for the first time, on the basis of a count made about 30 years ago by Peter Raven.

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Section: Discussionmentioning

confidence: 99%

Chromosome Numbers of Campanulaceae. Iii. Review and Integration of Data for Subfamily Lobelioideae

Lammers

1993

American J of Botany

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show abstract

Cytology of Two Members of Campanulaceae and Lobeliaceae and Their Interrelationships

Cited by 1 publication

References 14 publications

Chromosome Numbers of Campanulaceae. Iii. Review and Integration of Data for Subfamily Lobelioideae

Chromosome Numbers of Campanulaceae. Iii. Review and Integration of Data for Subfamily Lobelioideae

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