Sentence examples for basic chromosomes from inspiring English sources

It contains 13 15 species ranging from tetraploid (2n = 4x = 40) to dodecaploid (2n = 12x = 120, 122, 124) levels, with a basic chromosomes number x = 10.

It would appear that the rearrangements in HG2 and HG8 are major chromosome rearrangements to account for the smaller number of basic chromosomes in S. spontaneum.

Although it has not been proven, S. edule is thought to be an intergeneric hybrid between either S. officinarum or S. robustum with a related genus that might account for its aborted inflorescence [ 8]. S. robustum and S. spontaneum are two wild species with different basic chromosomes, x = 10 and x = 8, respectively [ 9- 12].

Across this area Prospero exhibits exceptionally high levels of chromosomal variation, with basic chromosome numbers of x = 4, 5, 6, and 7, alongside levels of ploidy up to about 20-fold [ 24- 26].

If so, some of the translocations hypothesised in the present study after the GA split could also be the result of ancient chromosomal fissions increasing the basic chromosome number in the lineage leading to spruce and pine.

By contrast, the P. autumnale complex exhibits a spectacular array of genomic and chromosomal variation, unparalleled in any other flowering plant, with multiple basic chromosome numbers, a huge range of levels and complexity of polyploidy, and a spectacular array of chromosomal polymorphisms (including supernumerary segments, B-chromosomes, and inversions).

Polyploids with three, five, or some other odd-number multiple of the basic chromosome number are sterile, because the separation of homologous chromosomes cannot be achieved properly during formation of the sex cells.

The basic chromosome number for genus Bidens has been reported as x = 12 (Ballard 1986).

Our chromosome count of 2n = 36 in P. cardaminifolia agrees with basic chromosome number, x = 18, and supports its generic placement in the genus.

Polyploidy is one of the most notorious features in the genus (Lawrence, 1980 19855) and x = 5, the accepted basic chromosome number (López et al., 2008a).

Strong evidence supporting x = 5 as the basic chromosome number in the genus Senecio has been recently published (López et al., 2008a).