Nuclear DNA amounts in angiosperms

Abstract

Nuclear DNA amounts have been estimated for more than 200 angiosperm species since the last collected list of such values for about 750 species was published by Bennett & Smith in 1976 ( Phil. Trans. R. Soc. Lond. B 274, 227- 274). These new estimates are either scattered in a wide range of scientific journals or, in many cases, unpublished; so they are not readily accessible. A publication, collecting these data in a single list is required. This paper contains a supplementary list of absolute DNA values, including estimates for 240 angiosperm species not listed by Bennett & Smith in 1976, as well as additional estimates for 41 species already listed by them. These data are assembled primarily for reference purposes. Consequently, the species are listed in alphabetical order, as this was felt to be more helpful to cyto- and biochemists, who it is anticipated will be among the major users.

Mitotic Activity in Cowpea (<i>Vigna unguiculata</i> (L.) Land Race “Olaudi” Walp) in Nigeria

“…Cell division in "Olaudi" increased rapidly during the day which may be due to cellular metabolism and photosynthesis [15]. A diploid chromosome number 2n = 22 obtained in this study agrees with earlier results in cowpea as reported by [16]. The level of prophase stage was dominant at all the time intervals and it increased during the early hours of the day but reduced during the late hours.…”

Relationships of cereal crops and other grasses

“…Genome size data are available in papers by Bennett and colleagues (36)(37)(38)(39). If data are extracted for 2C values for diploid grasses, these data can be mapped onto the phylogeny (Fig.…”

“…One possible model for evolution of genome size in the grasses. Data on genome size were extracted from papers by Bennett and colleagues (36)(37)(38)(39). The cladogram was based on references cited above; phylogeny in the Triticeae is from Kellogg et al (40), that in the Poeae͞Aveneae is from J. I.…”

Plant genome values: How much do we know?

“…Information on DNA amounts in different angiosperm taxa is often hard to locate because published data are widely scattered in diverse journals. Consequently, since 1976, several collected lists of DNA amounts in angiosperms have been published for reference purposes (17)(18)(19)(29)(30)(31).…”