Table 2.
Cytogenetic reports in the understudied tribes of Cucurbitaceae #.
Tribe and Genera | Species studied | Chromosome no. | Ploidy, Genome size, Chromosome features | References | ||
---|---|---|---|---|---|---|
x | 2n | n | ||||
GomphogyneaeGomphogyne Griffith, 1845 | G.cissiformis Griffith, 1837 | 32a | 16b | Tetraploidc, autopolyploidd; 10 secondary constrictions, one pair satellitede; II, III, IV in meiosisf | CCDBb; Kumar and Subramaniam (1987)a, Singh (1990)a,d, Roy et al. (1991)a,c,e,f | |
Hemsleya F.B. Forbes et Hemsley, 1888 | H.amabilis Diels, 1912, H.carnosiflora Wu et Chen, 1985, H.chinensis Forbes et Hemsley, 1888, H.emeiensis Shen et Chang, 1983, H.graciliflora Cogniaux, 1916, H.heterosperma Wallich, 1831, H.macrocarpa Cogniaux, 1916, H.panacis-scandens Wu et Chen, 1985, H.sphaerocarpa Kuang et Lu, 1982 | 7a | 28b, 22c, 24d, 26e, 32f, 40g, 42h | 14h | Tetraploidi, aneuploidsj | Samuel et al. (1995)a-j, Anmin et al. (2011)b, h |
Gynostemma Blume, 1825 | G.cardiospermum Oliver, 1892 | 11a | 66b | Hexaploidc | IPCN a-c | |
G.guangxiense Chen et Qin, 1988 | 22 a | Diploid b | IPCN a,b | |||
G.laxiflorum Wu et Chen, 1983 | 22 a | Diploid b | IPCN a,b | |||
G.longipes Wu et Chen, 1983 | 22a, 44b | Polyploidc | IPCN a-c | |||
G.microspermum Wu et Chen, 1983 | 22a | Diploid b | IPCN a,b | |||
G.pedatum Blume, 1825 | 12a | 24b | Diploidc | Roy et al. (1991) a,b,c | ||
G.pentagynum Wang, 1989 | 22a | Diploid b | IPCN a,b | |||
G.pentaphyllum Thunberg, 1784 | 22a, 24b, 64c, 66d | Diploide, triploidf, hexaploidg; 2C (flow cytometry): 3.62pgh; 17M+14sm+2sti; CSR: 2.16–4.09 µmj 5S (8), 45S (10) rDNA and telomeric signalsk | IPCNa,b,c,e,f; Zhang et al. (2013)h, Pellerin et al. (2018)d,g,i,j,k | |||
G.pentaphyllumvar.dasycarpum Wu, 1983 | 22a, 33b, 44c | Polyploidd | IPCN a-d | |||
G.pentaphyllumvar.pentaphyllum Thunberg, 1784 | 22a, 44b, 66c, 88d | Polyploide | IPCN a-e | |||
G.yixingense Wang et Xie, 1981 | 88a | Polyploidb | IPCN a,b | |||
Triceratieae | 8a | - | Roy et al. (1991) a | |||
Fevillea Linnaeus, 1753 | ||||||
ZanonieaeZanonia Linnaeus, 1753 | Z.indica Linnaeus, 1759 | 15a | 30b | 15c | Autoploidd; Metacentric chromosomese; CSR: 1.10-1.98 μmf | Lekhak et al. (2018) a-f |
Actinostemmateae | A.lobatum (Maxim.) Maxim. ex Franch. & Sav. | 16a | - | IPCN a | ||
Actinostemma Griffith, 1841 | A.tenerum Griffith, 1837 | 16a | Diploidb; 7M +1smc; CSR: 2.88–4.02 µmd; 45S (1) rDNA and 45S+5S (1) rDNA adjacent signale; telomeric repeat signalsf | Pellerin et al. (2018) a-f | ||
Thladiantheae | T.calcarata Clarke, 1876, T.cordifolia Blume, 1826 T.davidii Franchet, 1886, T.dentata Cogniaux, 1916, T.lijiangensis Lu et Zhang, 1981, T.nudiflora Hemsley, 1887, T.pustulata Léveillé, 1916 | |||||
Thladiantha Bunge, 1833 | 3a, 5b, 9c | 18d | 5e, 9f | Diploidg | Darlington and Janaki Ammal (1945)c; Roy et al. (1991)a,b,d,e,g, IPCNd,f | |
T.dubia Bunge, 1833 | 18a, 22b | Diploidc; 7M+1sm+1std; CSR: 2.60–4.10 µme; 45S (4) and co-localized 45S+5S (1) rDNA signalsf; telomeric repeat signalsg | Samuel et al. (1995)b, Pellerin et al. (2018)a,c,d,e,f,g | |||
Baijiania Lu et Li, 1993 | B.yunnanensis Lu et Zhang, 1984 | 32a | - | IPCN a | ||
SiraitieaeSiraitia Merrill, 1934 | S.grosvenorii Swingle, 1941 | 28a | 45S (6) and 5S (2) rDNA signalsb | IPCNa, Li et al. (2007)b | ||
JoliffieaeTelfairia Hooker, 1827 | T.occidentalis Hooker, 1871 | 22a, 33b, 44c | Diploidd, aneuploide, triploidf, Tetraploidg; 1 Bh | Uguru and Onovo (2011) a-h | ||
T.pedata Sims, 1826 | 22a | - | Bhowmick and Jha (2015)a | |||
SchizopeponeaeHerpetospermum Hooker, 1867 | H.pedunculosum Seringe, 1828 | 11a | 45S (14), 5S (2) rDNA signalsb | Xie et al. (2019a) a,b | ||
Schizopepon Maximowicz, 1859 | S.bryoniifolius Maximowicz, 1859 | 10a | 20b | - | Roy et al. (1991)a, IPCNb | |
ConiandreaeApodanthera Arnott, 1841 | A.undulata Gray, 1853 | 14a | - | IPCN a | ||
Corallocarpus Bentham et Hooker, 1867 | C.epigaeus Rottler, 1803 | 26a | 13b | - | Beevy and Kuriachan (1996) a,b | |
C.welwitschii Naudin, 1863 | 72a | - | Singh (1990)a | |||
Ibervillea Greene, 1895 | 11a, 12b | - | Darlington and Janaki Ammal (1945) a,b | |||
Kedrostis Medikus, 1791 | K. africana Linnaeus, 1753 | 40a | 2C (feulgen densitometry): 0.8 pgb; 2C (flow cytometry): 1674 Mbpc | Bennet et al. (1982)a,b, Plant C DNA Values Databasec | ||
K.foetidissima Jacquin, 1788 | 26a | 13b | Beevy and Kuriachan (1996) a,b | |||
K.rostrata Rottler, 1803 | 13a | 26b | 13c | - | IPCN a-c | |
Seyrigia Keraudren, 1960 | 13a | - | IPCN a |
# x: base number; 2n: zygotic number; n: gametic number; CSR: chromosome size range; B: B chromosome; II: bivalents, III: trivalent, IV: tetravalent; superscripts correspond to references.