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The cytotaxonomy of Piptatherum kuoi (Stipeae, Poaceae)
Author(s) -
Zhang ZhongShuai,
Chen WenLi
Publication year - 2018
Publication title -
nordic journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.333
H-Index - 33
eISSN - 1756-1051
pISSN - 0107-055X
DOI - 10.1111/njb.01929
Subject(s) - biology , cytotaxonomy , karyotype , chromosome , poaceae , botany , phylogenetic tree , chromosome number , phylogenetic relationship , evolutionary biology , zoology , genetics , gene
The generic placement of Piptatherum kuoi (Poaceae, Stipeae) has long been controversial. Recent molecular phylogenetic analyses indicate that Piptatherum kuoi should be transferred to Patis . Here, we present cytological support for this transfer and discuss morphological differences and similarities. Piptatherum kuoi has a chromosome number of 2 n = 46 with the chromosomes varying in length between 1.1 and 3.1 μm, and the symmetrical karyotype 2 n = 26m + 16sm + 4st (2sat). Karyological characters of Piptatherum kuoi , including chromosome number, size, and karyotype asymmetry, thus all agree with those of species of Patis , but are different from those of other species of Piptatherum . The transfer of Piptatherum kuoi to Patis is thus corroborated.