Seed morphology and its systematic implications for genus Oxytropis DC. (Fabaceae)
Yükleniyor...
Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
TAYLOR & FRANCIS
Erişim Hakkı
info:eu-repo/semantics/embargoedAccess
Özet
In the present study, seeds of 13 Oxytropis DC. species (including two latest synonyms) classified in subg. Oxytropis (sect. Dolichocarpon, sect. Chrysantha and sect. Eumorpha), subg. Euoxytropis (sect. Orobia) and subg. Phacoxytropis (sect. Protoxytropis, sect. Janthina and sect. Mesogaea) from Turkey were examined using light and scanning electron microscopy to evaluate the taxonomic relevance of macro- and micro-morphological seed characters. As a result of the study, species-specific characters have been determined. Seeds exhibit variation in size, shape, surface sculpturing pattern, hilum position and weight. Seeds ranged from 1.61 to 4.04mm in length and from 1.02 to 2.56mm in width. Five different seed shapes were recognised, as prolonged semielliptic, reniform, prolonged reniform, quadratic and cardiform, with a length to width ratio ranging from 1.02 +/- 0.08 to 1.75 +/- 0.27. Rugulate, rugulate-reticulate and lophate sculpturing patterns were observed in the studied species. According to the results, seed characters, such as the size (length, width and the length/width ratio), the shape, the surface sculpturing and the weight appear to have low taxonomic value in distinguishing subgenera, sections and species.
Açıklama
Anahtar Kelimeler
Oxytropis, Seed Micromorphology, SEM, Taxonomy, Testa Ornamentation
Kaynak
PLANT BIOSYSTEMS
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
149
Sayı
5
