Meiotic Studies in Some Species of Tribe Cichorieae (Asteraceae) from Western Himalayas

Figure 1

(a) Hieracium crocatum, PMC showing 5II at M-I. (b-c) H. umbellatum: (b) diploid cytotype, PMC showing 5II at M-I, (c) hexaploid cytotype, PMC showing 27II at diakinesis. (d) Lactuca dissecta, A PMC showing 8II at M-I. (e) L. dolichophylla, PMC showing 8II at M-I. (f) L. lessertiana, PMC showing 8II at M-I. (g) L. macrorhiza, PMC showing 8II at M-I. (h) L. sativa, PMC showing 9II at M-I. (i) L. serriola, PMC showing 9II at M-I. (j) Prenanthes brunoniana, PMC showing 8 bivalents at M-I. (k–m) Taraxacum officinale: (k) diploid cytotype, PMC of diploid cytotype showing 8II at diakinesis, (l) triploid cytotype, PMC showing 5II + 14I at M-I (bivalents with arrow), and (m) tetraploid cytotype, PMC showing 1IV + 13II + 2I (univalents with arrow and quadrivalent with star). (n-o) Tragopogon dubius: (n) diploid, PMC showing 7II at M-I, (o) tetraploid cytotype, PMC showing 14II at diakinesis. (p) T. gracilis, PMC showing 7II at M-I. (q) Youngia glauca, PMC showing 7II at diakinesis, (r) Y. japonica, PMC showing 8II at M-I. (s) Y. tenuifolia, A PMC showing 5II at diakinesis. (M-I: metaphase-I, scale: 10 μm, IV: quadrivalent, II: bivalent, I: univalent.)

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