caa a22 4500 465806104 CHVBK 20180323112104.0 cr unu---uuuuu 170327e19900201xx s 000 0 eng 10.1007/BF03053464 doi (NATIONALLICENCE)springer-10.1007/BF03053464 Cytology of woody members of Rosaceae [Elektronische Daten] [V Singhal, B Gill, M Sidhu] Meiotic counts have been made on 16 woody species of the family Rosaceae from Indian forests. Of these,Photinia notoniana (n=17),Rubus gardnerianus (n=28) andSorbus foliolosa (2n=68) are counted for the first time. Besides, the Indian populations ofChaenomeles japonica (n=17),Cotoneaster acuminata andEriobotrya japonica (n=17) are also worked out for the first time. Intraspecific polyploid cytotypes are recorded inPyrus communis (2x, 3x) andRosa leschendultiana (2x, 4x). On the basis of chromosomal associations, the tetraploid cytotypes ofSorbus foliolosa appears to be alloploid in nature whereas the triploid ofPyrus communis show autoploid behaviour. Variation in chromosome number and some pollen sterility in pollen mother cells of meiotically normal diploid individuals ofCotoneaster acuminata (n=17),Prunus domestica ssp.insititia (n=8) andRosa leschenaultiana (n=7) seems to be due to chromatin transfer during cytomixis. Indian Academy of Sciences, 1990 Alloploid nationallicence autoploid nationallicence cytology nationallicence cytomixis nationallicence Rosaceae nationallicence Singhal V. Department of Botany, Punjabi University, 147 002, Patiala, India aut Gill B. Department of Botany, Punjabi University, 147 002, Patiala, India aut Sidhu M. Department of Botany, Punjabi University, 147 002, Patiala, India aut Proceedings: Plant Sciences Springer India 100/1(1990-02-01), 17-21 0370-0097 100:1<17 1990 100 12388 https://doi.org/10.1007/BF03053464 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF03053464 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Singhal V. Department of Botany, Punjabi University, 147 002, Patiala, India aut NATIONALLICENCE 700 1- Gill B. Department of Botany, Punjabi University, 147 002, Patiala, India aut NATIONALLICENCE 700 1- Sidhu M. Department of Botany, Punjabi University, 147 002, Patiala, India aut NATIONALLICENCE 773 0- Proceedings: Plant Sciences Springer India 100/1(1990-02-01), 17-21 0370-0097 100:1<17 1990 100 12388 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer