2024-03-29T06:49:36Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/2258562021-06-24T07:36:21Zcom_10261_24com_10261_8col_10261_277
00925njm 22002777a 4500
dc
Tlili, Abderrazak
author
Gouja, Hassen
author
Vallès, Joan
author
Garnatje, Teresa
author
Buhagiar, Joseph
author
Neffati, Mohamed
author
2020-02-04
In this work, we investigated the chromosome number and genome size of two Mediterranean Amaranthaceae species, namely Atriplex mollis from southern Tunisia and A. lanfrancoi (formerly Cremnophyton lanfrancoi) from Malta. The two species were found to be diploid (2n=18) for all examined populations. This result is different from that previously reported for Cremnophyton lanfrancoi Brullo and Pavone (2n=20). Genome size showed that both species have a close mean amount with 2C=3.41 and 3.51 pg, respectively. Two groups were distinguished with regard to genome size (P<0.01). It should, however, be noted that the majority of populations, with the exception of those from Djerba and Chbika, may be intermediate between the two basic groups. Moreover, the difference does not appear to depend on geographical distribution and environmental aspects. It would rather depend on chromosome rearrangements. The morphological similarities, the monophyly of Atriplex including A. lanfrancoi, previously ranked in genus Cremnophyton, sharing the same chromosome number and the same genome size, support the placement of Cremnophyton within the genus Atriplex.
Plant Systematics and Evolution 306:11 (2020)
http://hdl.handle.net/10261/225856
10.1007/s00606-020-01643-1
http://dx.doi.org/10.13039/501100002809
2C value
Atriplex
Chromosome numbers
Cremnophyton
Flow cytometry
Genome size
Nuclear DNA content
Chromosome number and genome size in Atriplex mollis from southern Tunisia and Atriplex lanfrancoi from Malta (Amaranthaceae)