Inheritance of eight morphological characters, namely, prostrate growth habit; narrow, bicompound and simple leaves; purple and light green foliage colours; light blue corolla and green seed coat colour, was studied. AU the traits except the light blue corolla showed monofactorial recessive inheritance, while the light blue corolla involved interaction of two recessive factors. Joint segregations of narrow leaf and double-flowered peduncle and simple leaf and light blue corolla were studied, and in both cases no linkage was detected

Pundir, R P S

Rao, N K

Van der Maesen, L J G

ICRISAT Open Access Repository

Prec. Indian A ~ .  SOl. (Plant Sci.), Vol. 89, Number 6, December 1980, pp. 497-503. ~) Printed in India. Inheritance of some qualitative characters in chickpea (Citer ar/eanum L.)* N K KAO, R P S PUNDIR and L J G VAN DER MAESEN Genetic Resources Unit, ICRISAT, Patancheru P.O., Andhra Pradesh 502 324, India MS received 21 January 1980 Abstract. Inheritance of e~ght morphological characters, namely, prostrate growth habit ; narrow, bicompound and simple leaves ; purple and light green fohago colours ; light blue corolla and green seed coat colour, was studied. All the traits except the light blue corolla showed monofactorial rocesswe inheritance, while the light blue corolla revolved interaction of two recessive factorL Joint segrega- tions of narrow leaf and doubla-flowered peduncle and stmple leaf and light blue corolla were studied, and in both cases no hnkage was detected. Keywords. Chickpea ; inheritance; prostrate growth; purple foliage ; flower colot, r ; send coat. 1.. Introduction The existence of wide morphological diversity m chickpea (Cicer arietinum L.) offers ample opportumty for genetic studies. Ever since th~s crop attracted the attention of plant breeders, several workers have analysed its various morphological tratts genetically. Though we know the nature of  inheritance and linkage relation ships of a number of  chickpea characters, the available information (van tier Maesen 1972) ~s rather meagre to fully establish any linkage group, and much of the vast variation still remains unexplored. The spontaneous mutation rate (0.0005- 0.0125%), which is significant in Cicer (Balasubramanyan 1951), occasionally produces more diversity. The genetic behaviour of a leaf mutant with narrow leaflets (figure 2), isolated from double-podded " d e s 1 "  cultivar JG 62, during 1974-75 at the ICRISAT Centre, and inheritance of  some other morphological traits such as prostrate growth habit, purple and light green fohage, simple (figure 3) and bipinnate (figure 4) leaves, light blue corolla and green seed coat are reported here. *Submitted as J A No. 126 by the Internattonal Crops Research Institute for the Semi- Arid Tropics (ICRISAT). 497 P.(B)--IO 498 ! N K Rao, R P S Pundir and L J G Van Der Maesen 3 4 Figures 1-4. 1. Normal leaf. 2. Narrow leaflets. 3. Simple leaf. 4. Bipin. hate leaf. 2. Materials and methods The new leaf mutant ~solated at the ICRISAT Centre is characterised by reduction m the width of the leaflets, which are narrow and long. All the cultwars selected for genetic studies were crossed to a normal des~ cultivar, BEG 482, during the postrainy season 1975-76 and the Fl's were grown in 1976-77. The characters of the parents and their Ft's are given in tabl0 1. Data on segregating F2 popu- lations were obtained during 1977-78 postrainy season and are given m table 2. In crosses with simple and bipinnate loaves, ICC 5928 was used as the normal leaf parent with light blue corolla. Backarosses to both parents, also produced during 1976-77, were grown simultaneously w~th F~. The F2 segregahon ratios were further confirmed from the backcross progeny data (table 3). 3. Results SegregaUon patterns in F~ and backcrosses indicated that prostrate growth habit; purple and hght green foliages; narrow, bicompound and simple leaves; and green seed coat wore all recessive-to-normal tra~ts, showing the single gone inheritance ratio, 3 : 1. The F2 segregation ratio of 9 pink, 3 light pink, 3 blue, and 1 light blue was obtained for the light blue corolla, which indicated the involvement of  two factors for corolla oolour. Qualitative characters in chickpea Table 1. Characters of parents and thmr Fls. 499 Character Parent I Parent II F1 Growth habit Semi-erect Prostrate Semi-erect (BEG 482) (ICC 5434) Foliage colour Normal green Purple Green (BEG 482)' (ICC 5783) Light green Green (ICC 5325) Leaflet shape Normal Narrow Normal (BEG 482) (ICC 10034) Leaf type Compound Simple Compound (ICC 5928) (ICC 8325) Pinnate B~pmnate Pinnate (ICC 5928) (ICC 5316) Corolla colour Light Blue Pink Pink (ICC 8325) (ICC 5928) Seed coat colour Yellow Brown Green Yellow Brown (BEG 482) (ICC 4957) Joint segregation was worked out for the genes for narrow leaf and double- flowered peduncle, and for the light blue flower and simple leaf. These genes were found to be independent of each other (table 4). 4. Discussion The present studios show that the narrow leaf mutant character is governed by a single recesslve gone, and is inherited independently from the recessive gone for double-flowered peduncle (table 4a). Earlier, Ramanujam and Smgh (1945), and Pathak and Sahay (1964) studied the inheritance of narrow leaf mutants and found the narrow leaf character recessive to the normal compound character and monogenically inherited. The results obtained here agree with their findings (table 4a). Patil (1959), and Arglkar and D'Cruz (1963) found prostrate growth habit to be governed by a simple recessive gone. Singh and Shyam (1959), on the other hand, found spreading growth habit dominant to erect growth habit. Our obser- vations agree with the findings of Patil (1959), and Arglkar and D'Cruz (1963). Inheritanao of various foliage colours was studied by Pathak and Sahay (1964). Chaudhan et al (1958), Argikar and D'Cruz (1962, 1963), and Bhapkar and 500 N K Rao, R P S Pundit and L J G Van Der Maesen Table 2. Segregahon data on F 2. Character Observed ratio Approprmte X ~ P ratio Growth habit Semi-erect 92 3 : 1 0.34 0 .7-0 .5  Prostrate 27 Foliage colour G r i n  298 3 : 1 0.04 0 .9-0 .7  Purple 97 Green 262 3 : 1 0.11 0 9-0.7 Light green 91 Leattot shape Normal 151 3 1 0 04 0 .9-0  7 Narrow 52 Loaf type Compound 375 3 9 1 0.49 0 .5-0  3 Simple 116 Pinnate 120 3 : 1 0" 31 0.7-0.5 Blpmnate 36 Corolla eoloux Pmk 261 9 : 3 : 3 : 1  2.74 0 .5-0 .3  Light pink 104 Blue 92 Light blue 34 Seed eolour Yellow Brown 87 3 : 1 0.88 0 5-0.3 Green 35 Patti (1962), and other colours were found to be recessive to normal green fohage. In the present investigation, the purple and light green fohage colours were also found to be recessive to normal green foliage; inheritance of (dark) purple foliage colour is reported here for the first time. The F2 segregation ratio of 3 normal green : 1 light green foliage was in agreement with the findings of Balasttbramanyan (1937). The segregation pattern in the F~ and backcrosses suggested the monogenic recessive inheritance of simple and bipinnate leaves, which agree with the earlier findings of Ekbote (1942), Vacchani (1942), Argikar (1958), Singh and Shyam (1959), and Athwal and Brat (1964). Inheritance of light blue corolla was studied for the first time and a modified dihybrid ratio, 9 pink, 3 light pink, 3 blue, and 1 hght blue, was recorded in Fz from a cross with pink corolla material. Thus, light blue flower colour is governed by the interaction of two recessive alleles. Moore and D'Cruz (1970) reported a similar digenio segregation m a cross involving parents having pink and white corollas. Khan and Akhtar (1934), Kadam et al (1941), and Reddy and Nayoem (1978) studied the inheritance of white flower colour and reported Qualitative characters in chickpea Table 3. Backoross segregation data. 501 [Cross Observed ratio X 2 (1 : 1) P (BEG 482 x 5434) x 5434 Semi-erect habit 20 0.44 0.5-0.3 Prostrate habit 16 (BEG482 • 5783) • 5783 (BEG482 • 5325) • 5325 (BEG 482 x 10034) • 10034 Green foliage 17 0.64 0 5-0.3 Purple foliage 22 Green foliage 51 0 86 0.5-0.3 Light green foliage 42 Normal leaflets 38 0.01 0.9-0.7 Narrow leaflets 39 Double flowers 37 0.12 0.9--0" 7Single flowers 40 (8325 x 5928) x 8325 Compound leaf 12 0.04 0.9-0.7 Simple leaf 11 (all pink flowered) (5928 x 5316) • 5928 (BEG 482 x 4957) x 4957 All pinnately compound Yellow brown seeded 21 Green seeded 17 0 " 0 0  . .  0.42 0.5-0.3 that pink eolour was controlled by a pair of  complementary genes On the other hand, many workers have observed a monogemc segregation for pink versus white corollas. Joint segregation studies of  simple leaf and hght blue corolla revealed that none of  the two genes for corolla colour was hnked to the gone for simple leaf (table 4b). Arglkar (1956), Arglkar and D'Cruz (1962), and Moore and D'Cruz (1976) found the green seed coat recessive to brown, and obtained a moaogenie segre- gation. In the present investigation, the ratto of  3 yellow brown : 1 green is in agreement with the earher reports. Acknowledgements Authors smcerely~acknowledge the help received from Mr G V Reddy and Mr Sal Reddy, Field Assistants, and other field staff in taking observaUons. Authors also thank Drs D Sharma and P Remanandan for going through the manuscript and giving them valuable suggestions. 502 N K Rao, R P S Pundir and L J G Van Der Maescn P, 0 fa. . ~  ~  V'. • o o  0 0 ~Z 0 V'- r C r 1 6 2 1 6 2  0 r162 0 r162 0 • r162 Quahtative characters in chickpea 503 References Argikar G P 1956 Some quahtatwe and quantitative observations on the genetio improvement of green seeded strata of Ctcer artetinum ; Indian J. Genet. Plant Breed. 16 52-56 Arglkar (3 P 1958 Inheritance of tiny-leaved and alternifolia forms m Cicer arietinum ; Curt. Sci. 27 183-184 Arglkar (3 P and D'Cruz R 1962 Inheritance of foliage, cotyledon and tests eolour in Cieer; Indian Y. Genet. Plant Breed. 22 241-243 A r ~ a r  G P and D'Cruz R 1963 Genetic studies in gram ; J Indian Bet. Sac. 42 401--405 Athwal D S and Brar H S 1964 Genetics of some mutants m Cwer arietmum ; 1. Res. Punjab Agrtc. Univ. I 129-134 Balasubramanyan R 1937 Inheritance of characters m gram (Cwer arietinum L.)-7-Foliage eolour and rough seed coat ; Madras Agric. Y. 25-27 207 Balasubramanyan R 1951 MutaUon m gram (Cicer arietinum) ; In&anY. Agrie. Sci. 21 109-112 Bhapkar D (3 and Patti J A 1962 Inheritance of foliag~ and seed coat colour in gram ; Sci. Cult. 28 441--442 Chaudhart B B, Patii J A and Pandya H (3 1958 Bronze leaf, a fohage colour mutant in Bengal gram ; Sci. Cult. 23 488--489 Ekbote P B 1942 Genetics of two mutations in Citer ; In&an J. Genet. Plant Breed. 2 50-65 Kadam B S, Patel S M and Patankar V K 1941 Two now genes for corolla colour m C. aneti- hum L. ; Curt. Sci. 10 78-79 Khan A R and Akhtar A R 1934 The inheritance of petal colour ~n gram, Cicer arietinum L. ; Agric. ldvestk, ln&a 4 127-155 Moore D C and D'Cruz R 1970 (3vnotlc studies m Bengal gram (Cicer arietinum); Poona Agri. Coil. Mag. 60 27-32. Moore D C and D'Cruz R 1976 Inheritance ef cotyledon, testa, foliage and corolla colours m Bengal gram (Cicer arietinum L.) ; Botamque 7 37-40 Pathak G N and Sahay J 1964 Ten new mutants m Bengal gram ; In&an J. Genet. Plant Breed. 7,4 137-143 Patii J A 1959 Inheritance study m gram ; Poona Agri. Coll. Mag. 50 176-179 Ramanujam S and Singh H B 1945 Narrow leaf, another leaf mutation in gram ; Indian J. Genet. Plant Breed. 5 46-50 Reddy V G and Nayeem K A 1978 Inheritance of certain morphological characters tn Bengal gram (C. arietinum), Chtkodl U V • White seeded, In&an J. Here& 9 27-35 Smgh D and Shyam K 1959 (3enetics of two nee mutants in Cicer artetinum ; Indian J. Genet. Plant Breed. 19 73-82 Vacehanl M V 1942 Further inheritance studies of two mutants m Cicer ; Indian J. Genet. 2 173-177 vao der Maesen L J G 1972 Ctcer, a monograph o f  the genus, wtth spectal reference to the chickpea (C~cer ar~etinum L ), its ecology and cultivation (eds) H Veneman add N V Zonen, Wageningen pp. 238-241 

Inheritance of some qualitative characters in chickpea (Geer arietinum L.)

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Inheritance of some qualitative characters in chickpea (Geer arietinum L.)

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