Table 2.

The distribution of fluorochrome bands and rDNA sites in the five wild Vigna species.

Species	Fluorochrome bands				Number (pairs) and location of rDNA sites†
	Type	Distribution†	Amount (%)‡	Band size (mean)§	5S|	45S|
V. luteola	CPD	all CENs, PCENs and 45S sites	29.19	1.98–3.21 (2.65)	one [11S-PCEN (16.55%)]	one (3S)
V. vexillata	CPD	all 45S sites			one [(8L-INT(52.29%)]	two [2S-TER (20.53%), 3S-TER (16.73%)]
V. minima	CPD	all 45S and 5S sites			one [2S-INT (30.86%)]	five [2L-TER (58.64%), 4L-TER (59.42%), 6S-TER (38.91%), 7S-TER (50.74%), 9S-TER (67.94%)]
V. trilobata	CPD	all CENs, PCENs and 45S sites	20.04	2.73–1.12 (1.82)	one [4L-PCEN(14.95%)]	two [6S-PCEN(25.05%), 7S]
V. caracalla	CPD	all CENs, PCENs and 45S sites, 4S-, 4L-, 5L-INTs	21.68¶	0.89–2.63 (1.55)	two [2L-INT(34.32%), 5S-INT (56.7%)]	one (1S)
	DAPI	2, 3, 4, 5S-PCENs; 4, 5, 6, 8L-PCENs	8.19	0.69–1.38 (1.04)

^†S and L represent short and long arms, respectively; CEN, PCEN, INT and TER represent centromeric, pericentromeric, interstitial, terminal position, respectively; figures ahead of the positions are the designations of the chromosome pair involved. ^‡Amount of bands in the genome expressed as percentage of the karyotype length (rDNACPD bands are excluded). ^§The percentage of the size of the bands of each chromosome pair in relation to the karyotype length. ^|The percentages in square brackets are the percentage distance from centromere to the rDNA site (di = d× 100/a; d = distance of starting point of terminal sites judged by CPD bands or center of non-terminal sites judged by the FISH signals from the centromere, a = length of the corresponding chromosome arm). ^¶The value consists of the amounts of centromeric and pericentromeric CPD bands (18.29%) as well as interstitial CPD bands (3.39%).